Rolled ball screws GY/GW series
Features□ Model numbers of GY/GW series● Various screw shaft diameters and leads are available for yourselection• An optimal size can be selected from a variety of screw shaft diameters and leads, eliminating
unnecessary compromise in size selection.

● Nut types suited for the mounting configuration are available foryour selection• Nut types such as the flange type and square type are available for your selection.

● Free combination specification• The GY series screw shafts and nuts are mutually compatible. KURODA is also accepting
orders for each item separately.

□ Summary of the specifications
Screw shaft diameter
Lead
Accuracy grade
Axial clearance
Shaft end type
Product line

Lead

Example GY
40
40
model
numbers GY 8 to 40 2 to 40

GW 8 to 25 2 to 40

Number Combinaof circuits tion

B

S

See
specifications.

Flange
type

−

H

U

B

See
See
See
− specifi- specifi- specifications. cations. cations.

S

Overallscrew Shaft end Thread
shaft
type
lengthlengthBall recirWiper Thread
culationmaterial direction
systemX

ø8 to ø40 mm
2 to 40 mm
GW series: C7 grade
GY series: C10 grade
Refer to each product specification table.
Unfinished shaft ends
Standard productAccuracy Axial
grade clearanceR− 4000

R

To be
To be
shown
shown
with awith a4-digit
4-digit− numberA, X number−
in metric
in metric
units
units
(mm)
(mm)

3500 −

CA

Y

CA

Y

C7

Y

• For more details, refer to the specifications and data for each size.

□ Screw shaft diameter and lead combinations● GW series (Accuracy grade C7)
2.5

4

Lead (mm)
10
16

20
8
M
M
M
Screw 10M
M
shaft 12diam- 15
M, K
M, K
M
M
eter 16(mm) 20
M, K
M, K
M
25
M, K
M, K
The symbols in the above table represent: M: round type nut, K: square type nut

5

25

32

40

M
M
M

● GY series (Accuracy grade C10)

Additional shaftend machining

Surfacetreatment(Anticorrosive
black coating)

Change ofgrease type

Change of nut
direction

GW series

○

○

○

○

GY series

○

○

○

○

LUBSEAL
Refer to eachproduct page.
Refer to eachproduct page.

• The surface treatment is anticorrosive black coating (coating thickness: 1 to 2 μm).
• Contact KURODA regarding the inclusion of grease types other than the standard grease.
• Please refer to the LUBSEAL series and size reference chart or the option specifications on each product’s page
to determine whether or not LUBSEAL is supported.

D-2

Shaft
diameter2
M□ Options available
SeriesSeries

2
M
M
M

2.5

4
M
M
M

5
M
M

6

Lead (mm)
8
10
M
M
M
M
M, K

16
8
10
M
M
12
M, K
M
Screw 15
shaft 16
diam- 20
M, K
M, K
eter 25M, K
M, K(mm) 28
M
32
M, K
36
M
40
M
The symbols in the above table represent: M: round type nut, K: square type nut

20

25

32

40

M
M
M

M
M
M

M
M

M

D-3

D3

→Thread length→Overall screw shaft length00ø4.5-0.012

3

5

5

C

0.

C0.2

0.

* Collar(Model: GY/W-C06)
C0.2

0.

0

ø6-0.012

A

Fixed end

0

6-0.2

C

24

0

Supported end

0.030 or less 0.050 or less---Guide plate method
None
Alvania Grease S2
Nut alone Screw shaft, nut

ø6-0.012

C10 / Y

ø9.5

PC

Standard rolled ball screws are available with KURODA’s recommended shaft end finish
types for each size.
Other than KURODA’s recommended shaft end finish types described below, additional machining
including keyways, tapped holes, and D-cut processing are also available if requested. Pleasecontact KURODA with your orders. Model examples for finished shaft ends are described below.
Model example: Unfinished shaft ends (See left figure) → Finished shaft ends
GW0802GS-HGNR-0400A → GW0802GS-HGNR-0382X0336-CAY

0

C7 / Y0
ø4● Shaft end finish type28
R0.2 or less

6
White paint iscoated

(ø6.6)

A

Z B

6.8

+0.1
+0

5 5

9

29.5

7

M6×0.75
7.5

37Applicable supported end support unit
BUK-6S (Square type)
BUM-6S (Round type)

B
X

R0.2
7 or less

+0.1

0.8+0

(ø8)

-0.1

22

Applicable fixed end support unit
BUK-6 (Square type)
BUM-6, BUM-6F (Round type)● Optional specifications

B

L1 (Hardened portion)

55• Anticorrosive black coating (coating thickness: 1 to 2 μm) is available.

Lt
Model No.
Model No.
(Unfinished(Unfinishedshaft ends)
shaft ends)
GW0802GS-HGNR-0200A
GW0802GS-HGNR-0200A
GW0802GS-HGNR-0400A
GW0802GS-HGNR-0400A
GY0802GS-HGNR-0200A
GY0802GS-HGNR-0200A
GY0802GS-HGNR-0400A
GY0802GS-HGNR-0400A

L1

L1

Lt

145
345
145
345

145
345
145
345

200
400
200
400

Maximum
Maximum
stroke stroke(L1 - nut(L1length)- nut length)
200
117
117
400
317
317
200
117
117
400
317
317
Lt

Lead accuracy
Lead accuracy
Cumulative
Cumulative
lead error
lead error
0.05/300
0.05/300
0.21/300
0.21/300

Accuracy
Accuracyof each ofparteach part
X
X
Z
Z
0.040 0.040
0.020 0.020
0.120 0.120
0.080 0.080----0.200 0.200

Mass Mass(kg)(kg)
0.17 0.17
0.25 0.25
0.17 0.17
0.25 0.25• At the time of delivery, grease is inserted inside of the nut, with rust-preventive oil also applied.
Before and during use, apply lubricant where appropriate.

D-4

D-5

Screw shaft
diameter ø82-4.5 drilled hole

8-2
3.5 turns 1 circuit /Right-hand
1.5875
6.6
GW
GY
1800
3200

C

Shaft diameter (mm) - Lead (mm)Number of circuits /Thread direction
Ball diameter (mm)Root diameter (mm)SeriesBasic dynamic load rating C (N)Basic static load rating C0 (N)Accuracy grade /Axial clearance symbol
Axial clearance (mm)Preload torque (N·cm)
Recirculation system
Wiper
LubricantPhosphate coating

Screw shaft diameter ø8, Lead 2 (Round nut)

ø5.7-0.06● Ball screw specifications

ø20-0.2

Screw shaft
diameter ø8

GW series (Accuracy grade C7) / GY series (Accuracy grade C10)

Standard rolled ball screws are available with KURODA’s recommended shaft end finish
types for each size.
Other than KURODA’s recommended shaft end finish types described below, additional machining
including keyways, tapped holes, and D-cut processing are also available if requested. Pleasecontact KURODA with your orders. Model examples for finished shaft ends are described below.
Model example: Unfinished shaft ends (See left figure) → Finished shaft ends
GY0804DS-HANR-0400A → GY0804DS-HANR-0382X0336-CAY

30°

30°

8

ø3

PC

→Thread length→Overall screw shaft length

D3

C10 / Y

0

Supported end

0.050 or less---Tube method
None
Alvania Grease S2
Screw shaft, nut

White paint iscoated

(ø6.3)

A

5 5

9

29.5

-0

ø4.5-0.012

3

0.

C

0.

5

-0

C
6.8

+0.1
0

7

M6×0.75
7.5

37Applicable supported end support unit
BUK-6S (Square type)
BUM-6S (Round type)

B
X

R0.2
7 or less

+0.1

0.8 0

(ø8)

-0.1

R0.2 or less5B

ø6-0.012

C0.2

5

0.

Z

* Collar(Model: GY/W-C06)
C0.2

ø9.5

-0

-0

A

ø5.7-0.06

24

28
23

Fixed end

0

6-0.2

Applicable fixed end support unit
BUK-6 (Square type)
BUM-6, BUM-6F (Round type)● Optional specifications

B

L1 (Hardened portion)

55• Anticorrosive black coating (coating thickness: 1 to 2 μm) is available.

Lt
Model No.
Model No.
(Unfinished(Unfinishedshaft ends)
shaft ends)
GY0804DS-HANR-0200A
GY0804DS-HANR-0200A
GY0804DS-HANR-0400A
GY0804DS-HANR-0400A

L1

L1

Lt

145
345

145
345

200
400

Maximum
Maximum
stroke stroke(L1 - nut(L1length)- nut length)
200
117
117
400
317
317
Lt

Lead accuracy
Lead accuracy
Cumulative
Cumulative
lead error
lead error
0.21/300
0.21/300

Accuracy
Accuracyof each ofparteach part
X
X
Z
Z
0.080 0.080----0.200 0.200

Mass Mass(kg)(kg)
0.18 0.18
0.26 0.26• At the time of delivery, grease is inserted inside of the nut, with rust-preventive oil also applied.
Before and during use, apply lubricant where appropriate.

D-6

D-7

Screw shaft
diameter ø8● Shaft end finish type

4-3.4 drilled hole

8-4
2.5 turns 1 circuit /Right-hand
2.000
6.3
GY
1900
3100

C

Shaft diameter (mm) - Lead (mm)Number of circuits /Thread direction
Ball diameter (mm)Root diameter (mm)SeriesBasic dynamic load rating C (N)Basic static load rating C0 (N)Accuracy grade /Axial clearance symbol
Axial clearance (mm)Preload torque (N·cm)
Recirculation system
Wiper
LubricantPhosphate coating

Screw shaft diameter ø8, Lead 4 (Round nut)

ø6-0.012● Ball screw specifications

ø23-0.2

Screw shaft
diameter ø8

GY series (Accuracy grade C10)

Standard rolled ball screws are available with KURODA’s recommended shaft end finish
types for each size.
Other than KURODA’s recommended shaft end finish types described below, additional machining
including keyways, tapped holes, and D-cut processing are also available if requested. Pleasecontact KURODA with your orders. Model examples for finished shaft ends are described below.
Model example: Unfinished shaft ends (See left figure) → Finished shaft ends
GY0805DS-HUNR-0400A → GY0805DS-HUNR-0382X0336-CAY

30°

30°

8

ø3

PC

→Thread length→Overall screw shaft length

D2

C10 / Y
0.050 or less---Tube method
None
Alvania Grease S2
Screw shaft, nut

9Supported end

White paint iscoated

(ø6.4)

A

7

6.8

+0.1
0

5 5

9

-0

ø4.5-0.012

3

0.

5

29.5

C

0.
R0.2
or less7

M6×0.75
7.5

37Applicable supported end support unit
BUK-6S (Square type)
BUM-6S (Round type)

B

-0

C
+0.1

0.8 0

(ø8)

-0.1

R0.2 or less6B

ø6-0.012

C0.2

5

0.

Z

* Collar(Model: GY/W-C06)
C0.2

ø9.5

-0

-0

A

ø5.7-0.06

22

27
21

Fixed end

0

6-0.2

Applicable fixed end support unit
BUK-6 (Square type)
BUM-6, BUM-6F (Round type)● Optional specifications

X B
L1 (Hardened portion)

55• Anticorrosive black coating (coating thickness: 1 to 2 μm) is available.

Lt
Model No.
Model No.
(Unfinished(Unfinishedshaft ends)
shaft ends)
GY0805DS-HUNR-0200A
GY0805DS-HUNR-0200A
GY0805DS-HUNR-0400A
GY0805DS-HUNR-0400A

L1

L1

Lt

145
345

145
345

200
400

Maximum
Maximum
stroke stroke(L1 - nut(L1length)- nut length)
200
118
118
400
318
318
Lt

Lead accuracy
Lead accuracy
Cumulative
Cumulative
lead error
lead error
0.21/300
0.21/300

Accuracy
Accuracyof each ofparteach part
X
X
Z
Z
0.080 0.080----0.200 0.200

Mass Mass(kg)(kg)
0.17 0.17
0.25 0.25• At the time of delivery, grease is inserted inside of the nut, with rust-preventive oil also applied.
Before and during use, apply lubricant where appropriate.

D-8

D-9

Screw shaft
diameter ø8● Shaft end finish type

4-3.4 drilled hole

8-5
2.5 turns 1 circuit /Right-hand
2.000
6.4
GY
1900
3100

C

Shaft diameter (mm) - Lead (mm)Number of circuits /Thread direction
Ball diameter (mm)Root diameter (mm)SeriesBasic dynamic load rating C (N)Basic static load rating C0 (N)Accuracy grade /Axial clearance symbol
Axial clearance (mm)Preload torque (N·cm)
Recirculation system
Wiper
LubricantPhosphate coating

Screw shaft diameter ø8, Lead 5 (Round nut)

ø6-0.012● Ball screw specifications

ø22-0.2

Screw shaft
diameter ø8

GY series (Accuracy grade C10)

Standard rolled ball screws are available with KURODA’s recommended shaft end finish
types for each size.
Other than KURODA’s recommended shaft end finish types described below, additional machining
including keyways, tapped holes, and D-cut processing are also available if requested. Pleasecontact KURODA with your orders. Model examples for finished shaft ends are described below.
Model example: Unfinished shaft ends (See left figure) → Finished shaft ends
GY0808AS-HANR-0400A → GY0808AS-HANR-0382X0336-CAY

30°

30°

8

ø3

PC

→Thread length→Overall screw shaft length

D3

C10 / Y

0
Supported end

0.050 or less---Tube method
None
Alvania Grease S2
Screw shaft, nut

White paint iscoated

(ø6.3)

A

(ø8)

-0.1

+0.1

6.8 0

5 5

9

29.5

ø4.5-0.012-07

M6×0.75
7.5

37Applicable supported end support unit
BUK-6S (Square type)
BUM-6S (Round type)

B

-0

R0.2
7 or less

+0.1

0.8 0

C
0.
5
C
0.
3

5
R0.2 or less

ø6-0.012

C0.2

5

Z B

X

* Collar(Model: GY/W-C06)
C0.2

ø9.5

-0

-0

A

ø5.7-0.06

24

28
23

Fixed end

0

6-0.2

Applicable fixed end support unit
BUK-6 (Square type)
BUM-6, BUM-6F (Round type)● Optional specifications

B

L1 (Hardened portion)

55• Anticorrosive black coating (coating thickness: 1 to 2 μm) is available.

Lt
Model No.
Model No.
(Unfinished(Unfinishedshaft ends)
shaft ends)
GY0808AS-HANR-0200A
GY0808AS-HANR-0200A
GY0808AS-HANR-0400A
GY0808AS-HANR-0400A

L1

L1

Lt

145
345

145
345

200
400

Maximum
Maximum
stroke stroke(L1 - nut(L1length)- nut length)
200
117
117
400
317
317
Lt

Lead accuracy
Lead accuracy
Cumulative
Cumulative
lead error
lead error
0.21/300
0.21/300

Accuracy
Accuracyof each ofparteach part
X
X
Z
Z
0.080 0.080----0.200 0.200

Mass Mass(kg)(kg)
0.18 0.18
0.26 0.26• At the time of delivery, grease is inserted inside of the nut, with rust-preventive oil also applied.
Before and during use, apply lubricant where appropriate.

D-10

D-11

Screw shaft
diameter ø8● Shaft end finish type

4-3.4 drilled hole

8-8
1.5 turns 1 circuit /Right-hand
2.000
6.3
GY
1200
1800

0.
C

Shaft diameter (mm) - Lead (mm)Number of circuits /Thread direction
Ball diameter (mm)Root diameter (mm)SeriesBasic dynamic load rating C (N)Basic static load rating C0 (N)Accuracy grade /Axial clearance symbol
Axial clearance (mm)Preload torque (N·cm)
Recirculation system
Wiper
LubricantPhosphate coating

Screw shaft diameter ø8, Lead 8 (Round nut)

ø6-0.012● Ball screw specifications

ø23-0.2

Screw shaft
diameter ø8

GY series (Accuracy grade C10)

GY series (Accuracy grade C10)

Standard rolled ball screws are available with KURODA’s recommended shaft end finish
types for each size.
Other than KURODA’s recommended shaft end finish types described below, additional machining
including keyways, tapped holes, and D-cut processing are also available if requested. Pleasecontact KURODA with your orders. Model examples for finished shaft ends are described below.
Model example: Unfinished shaft ends (See left figure) → Finished shaft ends
GY1002DS-HANR-0600A → GY1002DS-HANR-0585X0531-CAY

30°
3

ø4

→Thread length→Overall screw shaft length

ø6-0.012

0.

5

-0

5

0.

C0.3

5

* Collar(Model: GY/W-C08)
C0.2

C

-0

A

-0

ø6-0.012

27

Fixed end

0

8-0.2

0.

Supported end

C3ø5.7-0.06

0.050 or less---Tube method
None
Alvania Grease S2
Screw shaft, nut-0D3

C10 / Y

ø8-0.015

PC

ø11.5

30°

22

R0.2 or less

6

R0.2
8 or less

+0.1

A

Z B

(ø8.4)

0.8 0

(ø10)

-0.1

28

White paint iscoated

5 5

35

9

M8×1
10

45

9

Applicable supported end support unit
BUK-6S (Square type)
BUM-6S (Round type)

B
X

6.8

+0.1
0

Applicable fixed end support unit
BUK-8, BUK-8F (Square type)
BUM-8, BUM-8F (Round type)● Optional specifications

B

L1 (Hardened portion)60• Anticorrosive black coating (coating thickness: 1 to 2 μm) is available.

Lt
Model No.
Model No.
(Unfinished(Unfinishedshaft ends)
shaft ends)
GY1002DS-HANR-0400A
GY1002DS-HANR-0400A
GY1002DS-HANR-0600A
GY1002DS-HANR-0600A

L1

L1

Lt

340
540

340
540

400
600

Maximum
Maximum
stroke stroke(L1 - nut(L1length)- nut length)
400
312
312
600
512
512
Lt

Lead accuracy
Lead accuracy
Cumulative
Cumulative
lead error
lead error
0.21/300
0.21/300

Accuracy
Accuracyof each ofparteach part
X
X
Z
Z
0.150 0.150----0.240 0.240

Mass Mass(kg)(kg)
0.35 0.35
0.48 0.48• At the time of delivery, grease is inserted inside of the nut, with rust-preventive oil also applied.
Before and during use, apply lubricant where appropriate.

D-12

D-13

Screw shaft
diameter ø10● Shaft end finish type4-4.5 drilled hole

10 - 2
2.5 turns 1 circuit /Right-hand
1.5875
8.4
GY
1700
3000

C

Shaft diameter (mm) - Lead (mm)Number of circuits /Thread direction
Ball diameter (mm)Root diameter (mm)SeriesBasic dynamic load rating C (N)Basic static load rating C0 (N)Accuracy grade /Axial clearance symbol
Axial clearance (mm)Preload torque (N·cm)
Recirculation system
Wiper
LubricantPhosphate coating

ø23-0.5

Screw shaft
diameter ø10● Ball screw specifications

Screw shaft diameter ø10, Lead 2 (Round nut)

GW series (Accuracy grade C7) / GY series (Accuracy grade C10)4

ø4→Thread length→Overall screw shaft length

-0

5

5

0.
C

5

C

0.

C0.3

0.

* Collar(Model: GY/W-C08)
C0.2

ø6-0.012

Fixed end

0

8-0.2

-0

-0

A

-0

27

Supported end

ø5.7-0.06

0.030 or less 0.050 or less---Guide plate method
None
Alvania Grease S2
Nut alone Screw shaft, nut

4ø8-0.015

D3

C10 / Y

ø11.5

PC

24

R0.2 or less

8

+0.1

Z B

White paint iscoated(ø8.2)

A

6.8

+0.1
0

5 5

9

R0.2
or less
35

9

M8×1
10

45

Applicable supported end support unit
BUK-6S (Square type)
BUM-6S (Round type)

B
X

8

0.8 0

(ø10)

-0.1

32

Applicable fixed end support unit
BUK-8, BUK-8F (Square type)
BUM-8, BUM-8F (Round type)● Optional specifications

B

L1 (Hardened portion)60• Anticorrosive black coating (coating thickness: 1 to 2 μm) is available.

Lt
Model No.
Model No.
(Unfinished(Unfinishedshaft ends)
shaft ends)
GW102FGS-HGNR-0400A
GW102FGS-HGNR-0400A
GW102FGS-HGNR-0600A
GW102FGS-HGNR-0600A
GY102FGS-HGNR-0400A
GY102FGS-HGNR-0400A
GY102FGS-HGNR-0600A
GY102FGS-HGNR-0600A

L1

L1

Lt

340
540
340
540

340
540
340
540

400
600
400
600

Maximum
Maximum
stroke stroke(L1 - nut(L1length)- nut length)
400
308
308
600
508
508
400
308
308
600
508
508
Lt

Lead accuracy
Lead accuracy
Cumulative
Cumulative
lead error
lead error
0.05/300
0.05/300
0.21/300
0.21/300

Accuracy
Accuracyof each ofparteach part
X
X
Z
Z
0.080 0.080
0.020 0.020
0.120 0.120
0.150 0.150----0.240 0.240

Mass Mass(kg)(kg)
0.41 0.41
0.53 0.53
0.41 0.41
0.53 0.53• At the time of delivery, grease is inserted inside of the nut, with rust-preventive oil also applied.
Before and during use, apply lubricant where appropriate.

D-14

D-15

Screw shaft
diameter ø10

Standard rolled ball screws are available with KURODA’s recommended shaft end finish
types for each size.
Other than KURODA’s recommended shaft end finish types described below, additional machining
including keyways, tapped holes, and D-cut processing are also available if requested. Pleasecontact KURODA with your orders. Model examples for finished shaft ends are described below.
Model example: Unfinished shaft ends (See left figure) → Finished shaft ends
GY102FGS-HGNR-0600A → GY102FGS-HGNR-0585X0531-CAY

ø6-0.012

C7 / Y● Shaft end finish type4-4.5 drilled hole
30°
°
0
3

10 - 2.5
3.5 turns 1 circuit /Right-hand
2.000
8.2
GW
GY
2600
5200

C

Shaft diameter (mm) - Lead (mm)Number of circuits /Thread direction
Ball diameter (mm)Root diameter (mm)SeriesBasic dynamic load rating C (N)Basic static load rating C0 (N)Accuracy grade /Axial clearance symbol
Axial clearance (mm)Preload torque (N·cm)
Recirculation system
Wiper
LubricantPhosphate coating

ø24-0.5

Screw shaft
diameter ø10● Ball screw specifications

Screw shaft diameter ø10, Lead 2.5 (Round nut)

GW series (Accuracy grade C7) / GY series (Accuracy grade C10)6

ø4

→Thread length→Overall screw shaft length

R0.2 or less

8

+0.1

8

(ø10)

Z B

White paint iscoated(ø7.8)

0.8 0

A

6.8

+0.1
0

B

5 5

9

R0.2
or less
35-0ø6-0.012

5

5

0.
C

9

M8×1
10

45

Applicable supported end support unit
BUK-6S (Square type)
BUM-6S (Round type)
X

0.

5

C

0.

-0.1

* Collar(Model: GY/W-C08)
C0.2

C0.3

34
26

Fixed end

0

8-0.2

-0

-0

A

-0

28

Supported end

ø5.7-0.06

0.030 or less 0.050 or less---Tube method
None
Alvania Grease S2
Nut alone Screw shaft, nut

6

ø8-0.015

D3

C10 / Y

ø11.5

PC

Applicable fixed end support unit
BUK-8, BUK-8F (Square type)
BUM-8, BUM-8F (Round type)● Optional specifications

B• Anticorrosive black coating (coating thickness: 1 to 2 μm) is available.

L1 (Hardened portion)

60
Lt

Model No.
Model No.
(Unfinished(Unfinishedshaft ends)
shaft ends)
GW1004DS-HANR-0400A
GW1004DS-HANR-0400A
GW1004DS-HANR-0600A
GW1004DS-HANR-0600A
GY1004DS-HANR-0400A
GY1004DS-HANR-0400A
GY1004DS-HANR-0600A
GY1004DS-HANR-0600A

L1

L1

Lt

340
540
340
540

340
540
340
540

400
600
400
600

Maximum
Maximum
stroke stroke(L1 - nut(L1length)- nut length)
400
306
306
600
506
506
400
306
306
600
506
506
Lt

Lead accuracy
Lead accuracy
Cumulative
Cumulative
lead error
lead error
0.05/300
0.05/300
0.21/300
0.21/300

Accuracy
Accuracyof each ofparteach part
X
X
Z
Z
0.080 0.080
0.020 0.020
0.120 0.120
0.150 0.150----0.240 0.240

Mass Mass(kg)(kg)
0.42 0.42
0.54 0.54
0.42 0.42
0.54 0.54• At the time of delivery, grease is inserted inside of the nut, with rust-preventive oil also applied.
Before and during use, apply lubricant where appropriate.

D-16

D-17

Screw shaft
diameter ø10

Standard rolled ball screws are available with KURODA’s recommended shaft end finish
types for each size.
Other than KURODA’s recommended shaft end finish types described below, additional machining
including keyways, tapped holes, and D-cut processing are also available if requested. Pleasecontact KURODA with your orders. Model examples for finished shaft ends are described below.
Model example: Unfinished shaft ends (See left figure) → Finished shaft ends
GY1004DS-HANR-0600A → GY1004DS-HANR-0585X0531-CAY

ø6-0.012

C7 / Y● Shaft end finish type4-4.5 drilled hole30°
30°

10 - 4
2.5 turns 1 circuit /Right-hand
2.3812
7.8
GW
GY
2300
4800

C

Shaft diameter (mm) - Lead (mm)Number of circuits /Thread direction
Ball diameter (mm)Root diameter (mm)SeriesBasic dynamic load rating C (N)Basic static load rating C0 (N)Accuracy grade /Axial clearance symbol
Axial clearance (mm)Preload torque (N·cm)
Recirculation system
Wiper
LubricantPhosphate coatingø26-0.5

Screw shaft
diameter ø10● Ball screw specifications

Screw shaft diameter ø10, Lead 4 (Round nut)

GY series (Accuracy grade C10)

Standard rolled ball screws are available with KURODA’s recommended shaft end finish
types for each size.
Other than KURODA’s recommended shaft end finish types described below, additional machining
including keyways, tapped holes, and D-cut processing are also available if requested. Pleasecontact KURODA with your orders. Model examples for finished shaft ends are described below.
Model example: Unfinished shaft ends (See left figure) → Finished shaft ends
GY1005DS-HUNR-0600A → GY1005DS-HUNR-0585X0531-CAY

30°
2
ø4

→Thread length→Overall screw shaft length

-0

5
0.
C

5

C

0.

C0.3

ø6-0.012

Fixed end

* Collar(Model: GY/W-C08)
C0.2

-0

-0

ø6-0.012A

ø5.7-0.06

26

0

8-0.2

5

Supported end

0.

0.050 or less---Tube method
None
Alvania Grease S2
Screw shaft, nut

4

-0

D3

C10 / Y

ø8-0.015

PC

ø11.5

30°

24

R0.2 or less

8

+0.1

Z B

(ø7.7)AWhite paint iscoated

6.8

+0.1
0

5 5

9

R0.2
or less
35

9

M8×1
10

45

Applicable supported end support unit
BUK-6S (Square type)
BUM-6S (Round type)

B
X

8

0.8 0

(ø10)

-0.1

32

Applicable fixed end support unit
BUK-8, BUK-8F (Square type)
BUM-8, BUM-8F (Round type)● Optional specifications

B

L1 (Hardened portion)60• Anticorrosive black coating (coating thickness: 1 to 2 μm) is available.

Lt
Model No.
Model No.
(Unfinished(Unfinishedshaft ends)
shaft ends)
GY1005DS-HUNR-0400A
GY1005DS-HUNR-0400A
GY1005DS-HUNR-0600A
GY1005DS-HUNR-0600A

L1

L1

Lt

340
540

340
540

400
600

Maximum
Maximum
stroke stroke(L1 - nut(L1length)- nut length)
400
308
308
600
508
508
Lt

Lead accuracy
Lead accuracy
Cumulative
Cumulative
lead error
lead error
0.21/300
0.21/300

Accuracy
Accuracyof each ofparteach part
X
X
Z
Z
0.150 0.150----0.240 0.240

Mass Mass(kg)(kg)
0.39 0.39
0.52 0.52• At the time of delivery, grease is inserted inside of the nut, with rust-preventive oil also applied.
Before and during use, apply lubricant where appropriate.

D-18

D-19

Screw shaft
diameter ø10● Shaft end finish type4-4.5 drilled hole

10 - 5
2.5 turns 1 circuit /Right-hand
2.3812
7.7
GY
2300
4800

C

Shaft diameter (mm) - Lead (mm)Number of circuits /Thread direction
Ball diameter (mm)Root diameter (mm)SeriesBasic dynamic load rating C (N)Basic static load rating C0 (N)Accuracy grade /Axial clearance symbol
Axial clearance (mm)Preload torque (N·cm)
Recirculation system
Wiper
LubricantPhosphate coatingø26-0.5

Screw shaft
diameter ø10● Ball screw specifications

Screw shaft diameter ø10, Lead 5 (Round nut)

GY series (Accuracy grade C10)

Standard rolled ball screws are available with KURODA’s recommended shaft end finish
types for each size.
Other than KURODA’s recommended shaft end finish types described below, additional machining
including keyways, tapped holes, and D-cut processing are also available if requested. Pleasecontact KURODA with your orders. Model examples for finished shaft ends are described below.
Model example: Unfinished shaft ends (See left figure) → Finished shaft ends
GY1006DS-HANR-0600A → GY1006DS-HANR-0585X0531-CAY

2

ø4

PCD

C10 / Y

→Thread length→Overall screw shaft length34
Supported end

0.050 or less---Tube method
None
Alvania Grease S2
Screw shaft, nut

Fixed end

0

8-0.2

C

0.

0.

5

5

-0

ø6-0.012-0ø8-0.015

5

C

0.

C0.3

ø11.5

* Collar(Model: GY/W-C08)
C0.2

-0

-0

ø6-0.012A

ø5.7-0.06

26

28

R0.2 or less

8

+0.1

Z B

(ø7.7)AWhite paint iscoated

6.8

+0.1
0

5 5

9

R0.2
or less
35

9

M8×1
10

45

Applicable supported end support unit
BUK-6S (Square type)
BUM-6S (Round type)

B
X

8

0.8 0

(ø10)

-0.1

36

Applicable fixed end support unit
BUK-8, BUK-8F (Square type)
BUM-8, BUM-8F (Round type)● Optional specifications

B

L1 (Hardened portion)60• Anticorrosive black coating (coating thickness: 1 to 2 μm) is available.

Lt
Model No.
Model No.
(Unfinished(Unfinishedshaft ends)
shaft ends)
GY1006DS-HANR-0400A
GY1006DS-HANR-0400A
GY1006DS-HANR-0600A
GY1006DS-HANR-0600A

L1

L1

Lt

340
540

340
540

400
600

Maximum
Maximum
stroke stroke(L1 - nut(L1length)- nut length)
400
304
304
600
504
504
Lt

Lead accuracy
Lead accuracy
Cumulative
Cumulative
lead error
lead error
0.21/300
0.21/300

Accuracy
Accuracyof each ofparteach part
X
X
Z
Z
0.150 0.150----0.240 0.240

Mass Mass(kg)(kg)
0.40 0.40
0.52 0.52• At the time of delivery, grease is inserted inside of the nut, with rust-preventive oil also applied.
Before and during use, apply lubricant where appropriate.

D-20

D-21

Screw shaft
diameter ø10● Shaft end finish type4-4.5 drilled hole
30°
°
0
3

10 - 6
2.5 turns 1 circuit /Right-hand
2.3812
7.7
GY
2300
4800

C

Shaft diameter (mm) - Lead (mm)Number of circuits /Thread direction
Ball diameter (mm)Root diameter (mm)SeriesBasic dynamic load rating C (N)Basic static load rating C0 (N)Accuracy grade /Axial clearance symbol
Axial clearance (mm)Preload torque (N·cm)
Recirculation system
Wiper
LubricantPhosphate coatingø26-0.5

Screw shaft
diameter ø10● Ball screw specifications

Screw shaft diameter ø10, Lead 6 (Round nut)

GW series (Accuracy grade C7) / GY series (Accuracy grade C10)

7

ø4

+0.1

8

Z B

White paint iscoated(ø7.8)

0.8 0

(ø10)

-0.1

R0.2 or less

8
A

6.8

+0.1
0

B

5 5

9

35

-0

ø6-0.012

5
0.

5
9

C

0.
C

R0.2
or less

M8×1
10

45

Applicable supported end support unit
BUK-6S (Square type)
BUM-6S (Round type)

X

-0

5

0.

C0.3

34
26

* Collar(Model: GY/W-C08)
C0.2

ø8-0.015-0A

Fixed end

0

8-0.2

ø11.5

30

Supported end-00.030 or less 0.050 or less---Tube method
None
Alvania Grease S2
Nut alone Screw shaft, nut

36

ø5.7-0.06

PCD

C10 / Y

→Thread length→Overall screw shaft length

Applicable fixed end support unit
BUK-8, BUK-8F (Square type)
BUM-8, BUM-8F (Round type)● Optional specifications• Anticorrosive black coating (coating thickness: 1 to 2 μm) is available.

B

L1 (Hardened portion)

60
Lt

Model No.
Model No.
(Unfinished(Unfinishedshaft ends)
shaft ends)
GW1010AS-HANR-0400A
GW1010AS-HANR-0400A
GW1010AS-HANR-0600A
GW1010AS-HANR-0600A
GY1010AS-HANR-0400A
GY1010AS-HANR-0400A
GY1010AS-HANR-0600A
GY1010AS-HANR-0600A

L1

L1

Lt

340
540
340
540

340
540
340
540

400
600
400
600

Maximum
Maximum
stroke stroke(L1 - nut(L1length)- nut length)
400
306
306
600
506
506
400
306
306
600
506
506
Lt

Lead accuracy
Lead accuracy
Cumulative
Cumulative
lead error
lead error
0.05/300
0.05/300
0.21/300
0.21/300

Accuracy
Accuracyof each ofparteach part
X
X
Z
Z
0.080 0.080
0.020 0.020
0.120 0.120
0.150 0.150----0.240 0.240

Mass Mass(kg)(kg)
0.43 0.43
0.55 0.55
0.43 0.43
0.55 0.55• At the time of delivery, grease is inserted inside of the nut, with rust-preventive oil also applied.
Before and during use, apply lubricant where appropriate.

D-22

D-23

Screw shaft
diameter ø10

Standard rolled ball screws are available with KURODA’s recommended shaft end finish
types for each size.
Other than KURODA’s recommended shaft end finish types described below, additional machining
including keyways, tapped holes, and D-cut processing are also available if requested. Pleasecontact KURODA with your orders. Model examples for finished shaft ends are described below.
Model example: Unfinished shaft ends (See left figure) → Finished shaft ends
GY1010AS-HANR-0600A → GY1010AS-HANR-0585X0531-CAY

ø6-0.012

C7 / Y● Shaft end finish type4-4.5 drilled hole
30°
°
0
3

10 - 10
1.5 turns 1 circuit /Right-hand
2.3812
7.8
GW
GY
1850
3200

C

Shaft diameter (mm) - Lead (mm)Number of circuits /Thread direction
Ball diameter (mm)Root diameter (mm)SeriesBasic dynamic load rating C (N)Basic static load rating C0 (N)Accuracy grade /Axial clearance symbol
Axial clearance (mm)Preload torque (N·cm)
Recirculation system
Wiper
LubricantPhosphate coating

ø28-0.5

Screw shaft
diameter ø10● Ball screw specifications

Screw shaft diameter ø10, Lead 10 (Round nut)

GW series (Accuracy grade C7) / GY series (Accuracy grade C10)7

ø4

R0.2 or less

8

+0.1

B

White paint iscoated(ø7.8)

A

B
X

8

0.8 0

(ø10)

-0.1

Z

6.8

+0.1
0

5 5

R0.2
or less
35-0ø6-0.012

5

5

C

0.

0.

5

C

0.

C0.3

34
26

* Collar(Model: GY/W-C08)
C0.2

-0

-0

A

Fixed end

0

8-0.2

ø8-0.015

30

Supported end

ø11.5

36

-0

0.030 or less 0.050 or less---Tube method
None
Alvania Grease S2
Nut alone Screw shaft, nut

ø5.7-0.06

PCD

C10 / Y

→Thread length→Overall screw shaft length

9

M8×1
10

45

9

Applicable supported end support unit
BUK-6S (Square type)
BUM-6S (Round type)

Applicable fixed end support unit
BUK-8, BUK-8F (Square type)
BUM-8, BUM-8F (Round type)● Optional specifications• Anticorrosive black coating (coating thickness: 1 to 2 μm) is available.

B

L1 (Hardened portion)

60
Lt

Model No.
Model No.
(Unfinished(Unfinishedshaft ends)
shaft ends)
GW1010BS-HUNR-0400A
GW1010BS-HUNR-0400A
GW1010BS-HUNR-0600A
GW1010BS-HUNR-0600A
GY1010BS-HUNR-0400A
GY1010BS-HUNR-0400A
GY1010BS-HUNR-0600A
GY1010BS-HUNR-0600A

L1

L1

Lt

340
540
340
540

340
540
340
540

400
600
400
600

Maximum
Maximum
stroke stroke(L1 - nut(L1length)- nut length)
400
306
306
600
506
506
400
306
306
600
506
506
Lt

Lead accuracy
Lead accuracy
Cumulative
Cumulative
lead error
lead error
0.05/300
0.05/300
0.21/300
0.21/300

Accuracy
Accuracyof each ofparteach part
X
X
Z
Z
0.080 0.080
0.020 0.020
0.120 0.120
0.150 0.150----0.240 0.240

Mass Mass(kg)(kg)
0.43 0.43
0.55 0.55
0.43 0.43
0.55 0.55• At the time of delivery, grease is inserted inside of the nut, with rust-preventive oil also applied.
Before and during use, apply lubricant where appropriate.

D-24

D-25

Screw shaft
diameter ø10

Standard rolled ball screws are available with KURODA’s recommended shaft end finish
types for each size.
Other than KURODA’s recommended shaft end finish types described below, additional machining
including keyways, tapped holes, and D-cut processing are also available if requested. Pleasecontact KURODA with your orders. Model examples for finished shaft ends are described below.
Model example: Unfinished shaft ends (See left figure) → Finished shaft ends
GY1010BS-HUNR-0600A → GY1010BS-HUNR-0585X0531-CAY

30°

30°

ø6-0.012

C7 / Y● Shaft end finish type4-4.5 drilled hole

10 - 10
1.5 turns 2 circuits /Right-hand
2.3812
7.8
GW
GY
3300
6400

C

Shaft diameter (mm) - Lead (mm)Number of circuits /Thread direction
Ball diameter (mm)Root diameter (mm)SeriesBasic dynamic load rating C (N)Basic static load rating C0 (N)Accuracy grade /Axial clearance symbol
Axial clearance (mm)Preload torque (N·cm)
Recirculation system
Wiper
LubricantPhosphate coating

ø28-0.5

Screw shaft
diameter ø10● Ball screw specifications

Screw shaft diameter ø10, Lead 10 (Round nut)

GY series (Accuracy grade C10)

● Shaft end finish type

Standard rolled ball screws are available with KURODA’s recommended shaft end finish
types for each size.
Other than KURODA’s recommended shaft end finish types described below, additional machining
including keyways, tapped holes, and D-cut processing are also available if requested. Pleasecontact KURODA with your orders. Model examples for finished shaft ends are described below.
Model example: Unfinished shaft ends (See left figure) → Finished shaft ends
GY1202DS-HANR-0800A → GY1202DS-HANR-0795X0730-CAY

4-4.5 drilled hole

30°
2

ø4

D3

ø8-0.015

-0

5

C0.3

5

C

0.

C

* Collar(Model: GY/W-C10)
C0.2

5

-0

-0

ø8-0.015

8
AWhite paint iscoated

R0.2 or less(ø10.6)

Z B

22

(ø12)

-0.1

30
R0.2
10 or less 10

+0.1

0.9 0

+0.1

7 5

7.9 0

40

10

L1 (Hardened portion)

60

Applicable fixed end support unit
BUK-10, BUK-10F (Square type)
BUM-10, BUM-10F (Round type)● Optional specifications• Anticorrosive black coating (coating thickness: 1 to 2 μm) is available.

Lt
Model No.
Model No.
(Unfinished(Unfinishedshaft ends)
shaft ends)
GY1202DS-HANR-0400A
GY1202DS-HANR-0400A
GY1202DS-HANR-0800A
GY1202DS-HANR-0800A

55

Applicable supported end support unit
BUK-8S (Square type)
BUM-8S (Round type)

B

X B

M10×1
15

L1

L1

Lt

340
740

340
740

400
800

Maximum
Maximum
stroke stroke(L1 - nut(L1length)- nut length)
400
310
310
800
710
710
Lt

Lead accuracy
Lead accuracy
Cumulative
Cumulative
lead error
lead error
0.21/300
0.21/300

Accuracy
Accuracyof each ofparteach part
X
X
Z
Z
0.150 0.150----0.320 0.320

Mass Mass(kg)(kg)
0.47 0.47
0.83 0.83• At the time of delivery, grease is inserted inside of the nut, with rust-preventive oil also applied.
Before and during use, apply lubricant where appropriate.

D-26

D-27

Screw shaft
diameter ø12

Fixed end0

10-0.20.

Supported end

A

C

27

0.050 or less---Tube method
None
Alvania Grease S2
Screw shaft, nut

0.

C10 / Y

→Thread length→Overall screw shaft length

4

-0

PC

ø10-0.015

30°

ø14

12 - 2
2.5 turns 1 circuit /Right-hand
1.5875
10.6
GY
2000
3600

ø7.6-0.06

Shaft diameter (mm) - Lead (mm)Number of circuits /Thread direction
Ball diameter (mm)Root diameter (mm)SeriesBasic dynamic load rating C (N)Basic static load rating C0 (N)Accuracy grade /Axial clearance symbol
Axial clearance (mm)Preload torque (N·cm)
Recirculation system
Wiper
LubricantPhosphate coating

ø25-0.5

Screw shaft
diameter ø12● Ball screw specifications

Screw shaft diameter ø12, Lead 2 (Round nut)

GW series (Accuracy grade C7) / GY series (Accuracy grade C10)

Standard rolled ball screws are available with KURODA’s recommended shaft end finish
types for each size.
Other than KURODA’s recommended shaft end finish types described below, additional machining
including keyways, tapped holes, and D-cut processing are also available if requested. Pleasecontact KURODA with your orders. Model examples for finished shaft ends are described below.
Model example: Unfinished shaft ends (See left figure) → Finished shaft ends
GY1204DS-HANR-0800A → GY1204DS-HANR-0795X0730-CAY

30°

0

ø5

PC

→Thread length→Overall screw shaft length

D4

C10 / Y

0.030 or less 0.050 or less---Tube method
None
Alvania Grease S2
Nut alone Screw shaft, nut

0
Supported end

30

Fixed end0

10-0.2

35

+0.1

Z B

X

White paint iscoated(ø10)

A

L1 (Hardened portion)

60

Lt
Model No.
Model No.
(Unfinished(Unfinishedshaft ends)
shaft ends)
GW1204DS-HANR-0400A
GW1204DS-HANR-0400A
GW1204DS-HANR-0800A
GW1204DS-HANR-0800A
GY1204DS-HANR-0400A
GY1204DS-HANR-0400A
GY1204DS-HANR-0800A
GY1204DS-HANR-0800A

+0.1

7 5

7.9 0

L1

L1

Lt

340
740
340
740

340
740
340
740

400
800
400
800

Maximum
Maximum
stroke stroke(L1 - nut(L1length)- nut length)
400
305
305
800
705
705
400
305
305
800
705
705
Lt

-0

5

5

R0.2
or less
40

10

C

10

M10×1
15

55

Applicable supported end support unit
BUK-8S (Square type)
BUM-8S (Round type)

B

B

10

0.9 0

0.

0.
C

R0.2 or less

8
(ø12)

-0.1

27

ø8-0.015-0ø10-0.015

5

0.

C0.3

ø14

* Collar(Model: GY/W-C10)
C0.2

-0

-0

ø8-0.015

A

Applicable fixed end support unit
BUK-10, BUK-10F (Square type)
BUM-10, BUM-10F (Round type)● Optional specifications• Anticorrosive black coating (coating thickness: 1 to 2 μm) is available.

Lead accuracy
Lead accuracy
Cumulative
Cumulative
lead error
lead error
0.05/300
0.05/300
0.21/300
0.21/300

Accuracy
Accuracyof each ofparteach part
X
X
Z
Z
0.080 0.080
0.020 0.020
0.200 0.200
0.150 0.150----0.320 0.320

Mass Mass(kg)(kg)
0.57 0.57
0.92 0.92
0.57 0.57
0.92 0.92• At the time of delivery, grease is inserted inside of the nut, with rust-preventive oil also applied.
Before and during use, apply lubricant where appropriate.

D-28

D-29

Screw shaft
diameter ø1230°

ø7.6-0.06

C7 / Y● Shaft end finish type4-4.5 drilled hole

12 - 4
2.5 turns 1 circuit /Right-hand
2.3812
10
GW
GY
2600
5800

C

Shaft diameter (mm) - Lead (mm)Number of circuits /Thread direction
Ball diameter (mm)Root diameter (mm)SeriesBasic dynamic load rating C (N)Basic static load rating C0 (N)Accuracy grade /Axial clearance symbol
Axial clearance (mm)Preload torque (N·cm)
Recirculation system
Wiper
LubricantPhosphate coating

ø30-0.5

Screw shaft
diameter ø12● Ball screw specifications

Screw shaft diameter ø12, Lead 4 (Round nut)

GY series (Accuracy grade C10)

● Shaft end finish type

Standard rolled ball screws are available with KURODA’s recommended shaft end finish
types for each size.
Other than KURODA’s recommended shaft end finish types described below, additional machining
including keyways, tapped holes, and D-cut processing are also available if requested. Pleasecontact KURODA with your orders. Model examples for finished shaft ends are described below.
Model example: Unfinished shaft ends (See left figure) → Finished shaft ends
GY1208DS-HANR-0800A → GY1208DS-HANR-0795X0730-CAY

4-4.5 drilled hole

30°

30°

5

ø4

PC

D3

C10 / Y

M6×1
(Oil hole)30

0.050 or less---Tube method
None
Alvania Grease S2
Screw shaft, nut→Thread length→Overall screw shaft length7
Supported end

Fixed end0

10-0.25-0
ø8-0.015
0.
C

C

0.

5

-0

5

0.

C

C0.3

ø10-0.015-0* Collar(Model: GY/W-C10)
C0.2

ø14

-0

ø8-0.015

A

R0.2 or less

10
A

Z B

White paint iscoated

X

B

+0.1

7 5

7.9 0

5

L1 (Hardened portion)

60

40

10

M10×1
15

55

Applicable supported end support unit
BUK-8S (Square type)
BUM-8S (Round type)B

R0.2
10 or less 10

+0.1

0.9 0

(ø10)

34

(ø12)

-0.1

44

Applicable fixed end support unit
BUK-10, BUK-10F (Square type)
BUM-10, BUM-10F (Round type)● Optional specifications• Anticorrosive black coating (coating thickness: 1 to 2 μm) is available.

Lt
Model No.
Model No.
(Unfinished(Unfinishedshaft ends)
shaft ends)
GY1208DS-HULR-0400A
GY1208DS-HULR-0400A
GY1208DS-HULR-0800A
GY1208DS-HULR-0800A

L1

L1

Lt

340
740

340
740

400
800

Maximum
Maximum
stroke stroke(L1 - nut(L1length)- nut length)
400
296
296
800
696
696
Lt

Lead accuracy
Lead accuracy
Cumulative
Cumulative
lead error
lead error
0.21/300
0.21/300

Accuracy
Accuracyof each ofparteach part
X
X
Z
Z
0.150 0.150----0.320 0.320

Mass Mass(kg)(kg)
0.58 0.58
0.94 0.94• At the time of delivery, grease is inserted inside of the nut, with rust-preventive oil also applied.
Before and during use, apply lubricant where appropriate.

D-30

D-31

Screw shaft
diameter ø1212 - 82.5 turns 1 circuit /Right-hand
2.778
10
GY
3800
6700

ø7.6-0.06

Shaft diameter (mm) - Lead (mm)Number of circuits /Thread direction
Ball diameter (mm)Root diameter (mm)SeriesBasic dynamic load rating C (N)Basic static load rating C0 (N)Accuracy grade /Axial clearance symbol
Axial clearance (mm)Preload torque (N·cm)
Recirculation system
Wiper
LubricantPhosphate coating

ø29-0.5

Screw shaft
diameter ø12● Ball screw specifications

Screw shaft diameter ø12, Lead 8 (Round nut)

GW series (Accuracy grade C7) / GY series (Accuracy grade C10)

Standard rolled ball screws are available with KURODA’s recommended shaft end finish
types for each size.
Other than KURODA’s recommended shaft end finish types described below, additional machining
including keyways, tapped holes, and D-cut processing are also available if requested. Pleasecontact KURODA with your orders. Model examples for finished shaft ends are described below.
Model example: Unfinished shaft ends (See left figure) → Finished shaft ends
GY1210AS-HULR-0800A → GY1210AS-HULR-0795X0730-CAY

30°
4

ø5

5

ø8-0.015

-0

C

0.

C

C0.3

5

* Collar(Model: GY/W-C10)
C0.2

0.

-0

ø8-0.015

A

5

32

Fixed end0

10-0.20.

Supported end

M6×1(Oil hole)-00.030 or less 0.050 or less---Tube method
None
Alvania Grease S2
Nut alone Screw shaft, nut

ø14

C10 / Y1

R0.2 or less

12

+0.1

A

Z B

White paint iscoated(ø9.6)

32

(ø12)

-0.1

44
10

0.9 0

+0.1

7 5

7.9 0

B

40

10

10

M10×1
15

55

Applicable supported end support unit
BUK-8S (Square type)
BUM-8S (Round type)

X B

R0.2
or less

Applicable fixed end support unit
BUK-10, BUK-10F (Square type)
BUM-10, BUM-10F (Round type)● Optional specifications

7
L1 (Hardened portion)60• Anticorrosive black coating (coating thickness: 1 to 2 μm) is available.

Lt
Model No.
Model No.
(Unfinished(Unfinishedshaft ends)
shaft ends)
GW1210AS-HULR-0400A
GW1210AS-HULR-0400A
GW1210AS-HULR-0800A
GW1210AS-HULR-0800A
GY1210AS-HULR-0400A
GY1210AS-HULR-0400A
GY1210AS-HULR-0800A
GY1210AS-HULR-0800A

L1

L1

Lt

340
740
340
740

340
740
340
740

400
800
400
800

Maximum
Maximum
stroke stroke(L1 - nut(L1length)- nut length)
400
296
296
800
696
696
400
296
296
800
696
696
Lt

Lead accuracy
Lead accuracy
Cumulative
Cumulative
lead error
lead error
0.05/300
0.05/300
0.21/300
0.21/300

Accuracy
Accuracyof each ofparteach part
X
X
Z
Z
0.080 0.080
0.020 0.020
0.200 0.200
0.150 0.150----0.320 0.320

Mass Mass(kg)(kg)
0.62 0.62
0.98 0.98
0.62 0.62
0.98 0.98• At the time of delivery, grease is inserted inside of the nut, with rust-preventive oil also applied.
Before and during use, apply lubricant where appropriate.

D-32

D-33

Screw shaft
diameter ø12→Thread length→Overall screw shaft length

D4

C

PC

ø10-0.01530°-0C7 / Y● Shaft end finish type4-5.5 drilled hole

12 - 10
1.5 turns 1 circuit /Right-hand
3.175
9.6
GW
GY
2850
4950

ø7.6-0.06

Shaft diameter (mm) - Lead (mm)Number of circuits /Thread direction
Ball diameter (mm)Root diameter (mm)SeriesBasic dynamic load rating C (N)Basic static load rating C0 (N)Accuracy grade /Axial clearance symbol
Axial clearance (mm)Preload torque (N·cm)
Recirculation system
Wiper
LubricantPhosphate coating

ø30-0.5

Screw shaft
diameter ø12● Ball screw specifications

Screw shaft diameter ø12, Lead 10 (Round nut)

GW series (Accuracy grade C7) / GY series (Accuracy grade C10)

Standard rolled ball screws are available with KURODA’s recommended shaft end finish
types for each size.
Other than KURODA’s recommended shaft end finish types described below, additional machining
including keyways, tapped holes, and D-cut processing are also available if requested. Pleasecontact KURODA with your orders. Model examples for finished shaft ends are described below.
Model example: Unfinished shaft ends (See left figure) → Finished shaft ends
GY1210BS-HULR-0800A → GY1210BS-HULR-0795X0730-CAY

30°
4

ø5

5
R0.2 or less

12

+0.1

A

B

White paint iscoated

+0.1

7 5

7.9 0

B

R0.2
or less
40

1010

ø8-0.015

M10×1
15

55

Applicable supported end support unit
BUK-8S (Square type)
BUM-8S (Round type)

B
X

10

0.9 0

(ø9.6)

Z

32

(ø12)

-0.1

44

-0

C

0.

C

C0.3

5

* Collar(Model: GY/W-C10)
C0.2

5

-0

ø8-0.015

A

0.

32

Fixed end0

10-0.2C

Supported end

M6×1(Oil hole)-00.030 or less 0.050 or less---Tube method
None
Alvania Grease S2
Nut alone Screw shaft, nut

ø14

C10 / Y

1

Applicable fixed end support unit
BUK-10, BUK-10F (Square type)
BUM-10, BUM-10F (Round type)● Optional specifications

7• Anticorrosive black coating (coating thickness: 1 to 2 μm) is available.

L1 (Hardened portion)

60

Lt
Model No.
Model No.
(Unfinished(Unfinishedshaft ends)
shaft ends)
GW1210BS-HULR-0400A
GW1210BS-HULR-0400A
GW1210BS-HULR-0800A
GW1210BS-HULR-0800A
GY1210BS-HULR-0400A
GY1210BS-HULR-0400A
GY1210BS-HULR-0800A
GY1210BS-HULR-0800A

L1

L1

Lt

340
740
340
740

340
740
340
740

400
800
400
800

Maximum
Maximum
stroke stroke(L1 - nut(L1length)- nut length)
400
296
296
800
696
696
400
296
296
800
696
696
Lt

Lead accuracy
Lead accuracy
Cumulative
Cumulative
lead error
lead error
0.05/300
0.05/300
0.21/300
0.21/300

Accuracy
Accuracyof each ofparteach part
X
X
Z
Z
0.080 0.080
0.020 0.020
0.200 0.200
0.150 0.150----0.320 0.320

Mass Mass(kg)(kg)
0.62 0.62
0.98 0.98
0.62 0.62
0.98 0.98• At the time of delivery, grease is inserted inside of the nut, with rust-preventive oil also applied.
Before and during use, apply lubricant where appropriate.

D-34

D-35

Screw shaft
diameter ø12→Thread length→Overall screw shaft length

D4

0.

PC

ø10-0.01530°-0C7 / Y● Shaft end finish type4-5.5 drilled hole

12 - 10
1.5 turns 2 circuits /Right-hand
3.175
9.6
GW
GY
5100
9900

ø7.6-0.06

Shaft diameter (mm) - Lead (mm)Number of circuits /Thread direction
Ball diameter (mm)Root diameter (mm)SeriesBasic dynamic load rating C (N)Basic static load rating C0 (N)Accuracy grade /Axial clearance symbol
Axial clearance (mm)Preload torque (N·cm)
Recirculation system
Wiper
LubricantPhosphate coating

ø30-0.5

Screw shaft
diameter ø12● Ball screw specifications

Screw shaft diameter ø12, Lead 10 (Round nut)

GW series (Accuracy grade C7) / GY series (Accuracy grade C10)
4-4.5 drilled hole4
ø5

→Thread length→Overall screw shaft length

D4

B

X

B

(ø15)

A

White paint iscoated(ø12.5)

9.15

+0.1
0

7 5

B

40

-0

ø10-0.015

5

5

M12×1
15

55

12

Applicable supported end support unit
BUK-10S (Square type)
BUM-10S (Round type)

Applicable fixed end support unit
BUK-12, BUK-12F (Square type)
BUM-12, BUM-12F (Round type)● Optional specifications

5

L1 (Hardened portion)

60• Ball screw lubricating unit LUBSEAL can be equipped.
Model example: GY1505DS-HUSR-1195X1128-CAY→Wiper material S: LUBSEAL

Lt

Model No.
Model No.
(Unfinished(Unfinishedshaft ends)
shaft ends)
GW1505DS-HULR-0600A
GW1505DS-HULR-0600A
GW1505DS-HULR-1200A
GW1505DS-HULR-1200A
GY1505DS-HULR-0600A
GY1505DS-HULR-0600A
GY1505DS-HULR-1200A
GY1505DS-HULR-1200A

R0.3
10 or less 10+0.14

1.15 0Screw shaft
diameter ø15-0.1

ø34-0.5

Z

R0.2 or less

10

C

-0

5

0.

C0.5

40
30

* Collar(Model: GY/W-C12)
C0.2

C

A

-0

34

Fixed end

012-0.250.

Supported end

M6×1(Oil hole)-00.030 or less 0.100 or less---Tube method
Lip seal
Alvania Grease S2
Nut alone Screw shaft, nut

4ø15

C10 / Y

0.

PC

Standard rolled ball screws are available with KURODA’s recommended shaft end finish
types for each size.
Other than KURODA’s recommended shaft end finish types described below, additional machining
including keyways, tapped holes, and D-cut processing are also available if requested. Pleasecontact KURODA with your orders. Model examples for finished shaft ends are described below.
Model example: Unfinished shaft ends (See left figure) → Finished shaft ends
GY1505DS-HULR-1200A → GY1505DS-HULR-1195X1128-CAY

ø9.6-0.09

C7 / Y30°30°● Shaft end finish type

ø12-0.018

15 - 5
2.5 turns 1 circuit /Right-hand
3.175
12.5
GW
GY
5100
10500

ø10-0.015

Shaft diameter (mm) - Lead (mm)Number of circuits /Thread direction
Ball diameter (mm)Root diameter (mm)SeriesBasic dynamic load rating C (N)Basic static load rating C0 (N)Accuracy grade /Axial clearance symbol
Axial clearance (mm)Preload torque (N·cm)
Recirculation system
Wiper
LubricantPhosphate coating

C

Screw shaft
diameter ø15● Ball screw specifications

Screw shaft diameter ø15, Lead 5 (Round nut)

• Anticorrosive black coating (coating thickness: 1 to 2 μm) is available.

L1

L1

Lt

540
1140
540
1140

540
1140
540
1140

600
1200
600
1200

Maximum
Maximum
stroke stroke(L1 - nut(L1length)- nut length)
600
500
500
1200
1100 1100
600
500
500
1200
1100 1100
Lt

Lead accuracy
Lead accuracy
Cumulative
Cumulative
lead error
lead error
0.05/300
0.05/300
0.21/300
0.21/300

Accuracy
Accuracyof each ofparteach part
X
X
Z
Z
0.070 0.070
0.025 0.025
0.170 0.170
0.140 0.140----0.400 0.400

Mass Mass(kg)(kg)
1.08 1.08
1.91 1.91
1.08 1.08
1.91 1.91• At the time of delivery, grease is inserted inside of the nut, with rust-preventive oil also applied.
Before and during use, apply lubricant where appropriate.

D-36

D-37

GW series (Accuracy grade C7) / GY series (Accuracy grade C10)

● Shaft end finish type

→Thread length→Overall screw shaft length

35
(ø15)

B

A

White paint iscoated

R0.2 or less(ø12.5)

6.5
4

Z

22

26

4-M4 depth 7+0.19.15 0

7 5

40Applicable supported end support unit
BUK-10S (Square type)
BUM-10S (Round type)

A

L1 (Hardened portion)

60

Lt
Model No.
Model No.
(Unfinished(Unfinishedshaft ends)
shaft ends)
GW1505DS-NKLR-0600A
GW1505DS-NKLR-0600A
GW1505DS-NKLR-1200A
GW1505DS-NKLR-1200A
GY1505DS-NKLR-0600A
GY1505DS-NKLR-0600A
GY1505DS-NKLR-1200A
GY1505DS-NKLR-1200A-0ø10-0.015

5

5

M12×1
15

55

12

B

0.

R0.3
10 or less 10+0.14

1.15 0Screw shaft
diameter ø15

5

C

C0.5

C

* Collar(Model: GY/W-C12)
C0.2

-0

A

-0

W A

ø9.6-0.09

13±0.05

Fixed end

012-0.25

ø15

Supported end

18
or less-00.030 or less 0.100 or less---Tube method
Lip seal
Alvania Grease S2
Nut alone Screw shaft, nut

ø10-0.015

C10 / Y0.

23 or less6

ø12-0.018

17±0.05

2 M6×1(Oil hole)Standard rolled ball screws are available with KURODA’s recommended shaft end finish
types for each size.
Other than KURODA’s recommended shaft end finish types described below, additional machining
including keyways, tapped holes, and D-cut processing are also available if requested. Pleasecontact KURODA with your orders. Model examples for finished shaft ends are described below.
Model example: Unfinished shaft ends (See left figure) → Finished shaft ends
GY1505DS-NKLR-1200A → GY1505DS-NKLR-1195X1128-CAY

34

C7 / Y6

15 - 5
2.5 turns 1 circuit /Right-hand
3.175
12.5
GW
GY
5100
10500

0.

Shaft diameter (mm) - Lead (mm)Number of circuits /Thread direction
Ball diameter (mm)Root diameter (mm)SeriesBasic dynamic load rating C (N)Basic static load rating C0 (N)Accuracy grade /Axial clearance symbol
Axial clearance (mm)Preload torque (N·cm)
Recirculation system
Wiper
LubricantPhosphate coating

C

Screw shaft
diameter ø15● Ball screw specifications

Screw shaft diameter ø15, Lead 5 (Square nut)

Applicable fixed end support unit
BUK-12, BUK-12F (Square type)
BUM-12, BUM-12F (Round type)● Optional specifications• Anticorrosive black coating (coating thickness: 1 to 2 μm) is available.

L1

L1

Lt

540
1140
540
1140

540
1140
540
1140

600
1200
600
1200

Maximum
Maximum
stroke stroke(L1 - nut(L1length)- nut length)
600
505
505
1200
1105 1105
600
505
505
1200
1105 1105
Lt

Lead accuracy
Lead accuracy
Cumulative
Cumulative
lead error
lead error
0.05/300
0.05/300
0.21/300
0.21/300

Accuracy
Accuracyof each ofparteach part
W
W
Z
Z
0.070 0.070
0.017 0.017
0.170 0.170
0.140 0.140----0.400 0.400

Mass Mass(kg)(kg)
1.05 1.05
1.88 1.88
1.05 1.05
1.88 1.88• At the time of delivery, grease is inserted inside of the nut, with rust-preventive oil also applied.
Before and during use, apply lubricant where appropriate.

D-38

D-39

GW series (Accuracy grade C7) / GY series (Accuracy grade C10)

Standard rolled ball screws are available with KURODA’s recommended shaft end finish
types for each size.
Other than KURODA’s recommended shaft end finish types described below, additional machining
including keyways, tapped holes, and D-cut processing are also available if requested. Pleasecontact KURODA with your orders. Model examples for finished shaft ends are described below.
Model example: Unfinished shaft ends (See left figure) → Finished shaft ends
GY1510DS-HULR-1200A → GY1510DS-HULR-1195X1128-CAY

30°
7

ø5

→Thread length→Overall screw shaft length

D4

Z B

White paint iscoated(ø12.5)

A

+0.1

7 5

9.15 0
12

Screw shaft
diameter ø15-0

ø10-0.015

5

5
40

M12×1
15

55

Applicable fixed end support unit
BUK-12, BUK-12F (Square type)
BUM-12, BUM-12F (Round type)● Optional specifications

B
5

L1 (Hardened portion)

60

Lt
Model No.
Model No.
(Unfinished(Unfinishedshaft ends)
shaft ends)
GW1510DS-HULR-0600A
GW1510DS-HULR-0600A
GW1510DS-HULR-1200A
GW1510DS-HULR-1200A
GY1510DS-HULR-0600A
GY1510DS-HULR-0600A
GY1510DS-HULR-1200A
GY1510DS-HULR-1200A

1.15 0Applicable supported end support unit
BUK-10S (Square type)
BUM-10S (Round type)

B
X

R0.3
10 or less 10

+0.14

(ø15)

-0.1

ø34-0.5

R0.2 or less

10

C

-0

5

0.

C0.5

52
42

* Collar(Model: GY/W-C12)
C0.2

C

A

-0

34

Fixed end

012-0.250.

Supported end

M6×1(Oil hole)-00.030 or less 0.100 or less---Tube method
Lip seal
Alvania Grease S2
Nut alone Screw shaft, nut

5ø15

C10 / Y0.

PCø12-0.018

30°

ø9.6-0.09

C7 / Y● Shaft end finish type4-5.5 drilled hole

15 - 10
2.5 turns 1 circuit /Right-hand
3.175
12.5
GW
GY
5100
10500

ø10-0.015

Shaft diameter (mm) - Lead (mm)Number of circuits /Thread direction
Ball diameter (mm)Root diameter (mm)SeriesBasic dynamic load rating C (N)Basic static load rating C0 (N)Accuracy grade /Axial clearance symbol
Axial clearance (mm)Preload torque (N·cm)
Recirculation system
Wiper
LubricantPhosphate coating

C

Screw shaft
diameter ø15● Ball screw specifications

Screw shaft diameter ø15, Lead 10 (Round nut)

• Ball screw lubricating unit LUBSEAL can be equipped.
Model example: GY1510DS-HUSR-1195X1128-CAY→Wiper material S: LUBSEAL• Anticorrosive black coating (coating thickness: 1 to 2 μm) is available.

L1

L1

Lt

540
1140
540
1140

540
1140
540
1140

600
1200
600
1200

Maximum
Maximum
stroke stroke(L1 - nut(L1length)- nut length)
600
488
488
1200
1088 1088
600
488
488
1200
1088 1088
Lt

Lead accuracy
Lead accuracy
Cumulative
Cumulative
lead error
lead error
0.05/300
0.05/300
0.21/300
0.21/300

Accuracy
Accuracyof each ofparteach part
X
X
Z
Z
0.070 0.070
0.025 0.025
0.170 0.170
0.140 0.140----0.400 0.400

Mass Mass(kg)(kg)
1.18 1.18
2.01 2.01
1.18 1.18
2.01 2.01• At the time of delivery, grease is inserted inside of the nut, with rust-preventive oil also applied.
Before and during use, apply lubricant where appropriate.

D-40

D-41

GW series (Accuracy grade C7) / GY series (Accuracy grade C10)

Standard rolled ball screws are available with KURODA’s recommended shaft end finish
types for each size.
Other than KURODA’s recommended shaft end finish types described below, additional machining
including keyways, tapped holes, and D-cut processing are also available if requested. Pleasecontact KURODA with your orders. Model examples for finished shaft ends are described below.
Model example: Unfinished shaft ends (See left figure) → Finished shaft ends
GY1510ES-HULR-1200A → GY1510ES-HULR-1195X1128-CAY

30°
7

ø5

→Thread length→Overall screw shaft length

D4

B

White paint iscoated(ø12.5)

A

+0.1

7 5

9.15 0
12

Screw shaft
diameter ø15-0

ø10-0.015

5

5

40

M12×1
15

55

Applicable fixed end support unit
BUK-12, BUK-12F (Square type)
BUM-12, BUM-12F (Round type)● Optional specifications

B
5

L1 (Hardened portion)

60

Lt
Model No.
Model No.
(Unfinished(Unfinishedshaft ends)
shaft ends)
GW1510ES-HULR-0600A
GW1510ES-HULR-0600A
GW1510ES-HULR-1200A
GW1510ES-HULR-1200A
GY1510ES-HULR-0600A
GY1510ES-HULR-0600A
GY1510ES-HULR-1200A
GY1510ES-HULR-1200A

1.15 0Applicable supported end support unit
BUK-10S (Square type)
BUM-10S (Round type)

B
X

R0.3
10 or less 10

+0.14

(ø15)

-0.1

ø34-0.5

Z

R0.2 or less

10

C

-0

5

0.

C0.5

52
42

* Collar(Model: GY/W-C12)
C0.2

C

A

-0

34

Fixed end

012-0.250.

Supported end

M6×1(Oil hole)-00.030 or less 0.100 or less---Tube method
Lip seal
Alvania Grease S2
Nut alone Screw shaft, nut

ø15

C10 / Y50.

PC

ø12-0.018

30°

ø9.6-0.09

C7 / Y● Shaft end finish type4-5.5 drilled hole

15 - 10
2.5 turns 2 circuits /Right-hand
3.175
12.5
GW
GY
9200
21000

ø10-0.015

Shaft diameter (mm) - Lead (mm)Number of circuits /Thread direction
Ball diameter (mm)Root diameter (mm)SeriesBasic dynamic load rating C (N)Basic static load rating C0 (N)Accuracy grade /Axial clearance symbol
Axial clearance (mm)Preload torque (N·cm)
Recirculation system
Wiper
LubricantPhosphate coating

C

Screw shaft
diameter ø15● Ball screw specifications

Screw shaft diameter ø15, Lead 10 (Round nut)

• Ball screw lubricating unit LUBSEAL can be equipped.
Model example: GY1510ES-HUSR-1195X1128-CAY→Wiper material S: LUBSEAL• Anticorrosive black coating (coating thickness: 1 to 2 μm) is available.

L1

L1

Lt

540
1140
540
1140

540
1140
540
1140

600
1200
600
1200

Maximum
Maximum
stroke stroke(L1 - nut(L1length)- nut length)
600
488
488
1200
1088 1088
600
488
488
1200
1088 1088
Lt

Lead accuracy
Lead accuracy
Cumulative
Cumulative
lead error
lead error
0.05/300
0.05/300
0.21/300
0.21/300

Accuracy
Accuracyof each ofparteach part
X
X
Z
Z
0.070 0.070
0.025 0.025
0.170 0.170
0.140 0.140----0.400 0.400

Mass Mass(kg)(kg)
1.18 1.18
2.01 2.01
1.18 1.18
2.01 2.01• At the time of delivery, grease is inserted inside of the nut, with rust-preventive oil also applied.
Before and during use, apply lubricant where appropriate.

D-42

D-43

GW series (Accuracy grade C7) / GY series (Accuracy grade C10)

● Shaft end finish type18±0.05

3 M6×1(Oil hole)
23 or less7

Standard rolled ball screws are available with KURODA’s recommended shaft end finish
types for each size.
Other than KURODA’s recommended shaft end finish types described below, additional machining
including keyways, tapped holes, and D-cut processing are also available if requested. Pleasecontact KURODA with your orders. Model examples for finished shaft ends are described below.
Model example: Unfinished shaft ends (See left figure) → Finished shaft ends
GY1510DS-NKLR-1200A → GY1510DS-NKLR-1195X1128-CAY→Thread length→Overall screw shaft length36

Supported end

Fixed end

012-0.25

Screw shaft
diameter ø15

C

0.

0.

5

5

-0

ø10-0.015

-0

C

C0.5

ø12-0.018* Collar(Model: GY/W-C12)
C0.2

ø15

A

-0

W A

ø9.6-0.09

22
or less15±0.0550.030 or less 0.100 or less---Tube method
Lip seal
Alvania Grease S2
Nut alone Screw shaft, nut-0

C10 / Y

ø10-0.015

C7 / Y6

15 - 10
2.5 turns 1 circuit /Right-hand
3.175
12.5
GW
GY
5100
10500

0.

Shaft diameter (mm) - Lead (mm)Number of circuits /Thread direction
Ball diameter (mm)Root diameter (mm)SeriesBasic dynamic load rating C (N)Basic static load rating C0 (N)Accuracy grade /Axial clearance symbol
Axial clearance (mm)Preload torque (N·cm)
Recirculation system
Wiper
LubricantPhosphate coatingC

52
R0.2 or less

Z B

(ø15)

A

White paint iscoated(ø12.5)10
26

32

4-M5 depth 8

5Screw shaft
diameter ø15● Ball screw specifications

Screw shaft diameter ø15, Lead 10 (Square nut)

R0.3
10 or less 10+0.14

1.15 0+0.1

9.15 0

7 5

40

12

B
L1 (Hardened portion)

Applicable fixed end support unit
BUK-12, BUK-12F (Square type)
BUM-12, BUM-12F (Round type)60● Optional specifications

Lt
Model No.
Model No.
(Unfinished(Unfinishedshaft ends)
shaft ends)
GW1510DS-NKLR-0600A
GW1510DS-NKLR-0600A
GW1510DS-NKLR-1200A
GW1510DS-NKLR-1200A
GY1510DS-NKLR-0600A
GY1510DS-NKLR-0600A
GY1510DS-NKLR-1200A
GY1510DS-NKLR-1200A

55

Applicable supported end support unit
BUK-10S (Square type)
BUM-10S (Round type)

A

M12×1
15

• Anticorrosive black coating (coating thickness: 1 to 2 μm) is available.

L1

L1

Lt

540
1140
540
1140

540
1140
540
1140

600
1200
600
1200

Maximum
Maximum
stroke strokeLt(L1 - nut(L1length)- nut length)
600
488
488
1200
1088 1088
600
488
488
1200
1088 1088

Lead accuracy
Lead accuracy
Cumulative
Cumulative
lead error
lead error
0.05/300
0.05/300
0.21/300
0.21/300

Accuracy
Accuracyof each ofparteach part
W
W
Z
Z
0.070 0.070
0.017 0.017
0.170 0.170
0.140 0.140----0.400 0.400

Mass Mass(kg)(kg)
1.24 1.24
2.07 2.07
1.24 1.24
2.07 2.07• At the time of delivery, grease is inserted inside of the nut, with rust-preventive oil also applied.
Before and during use, apply lubricant where appropriate.

D-44

D-45

GW series (Accuracy grade C7) / GY series (Accuracy grade C10)

Standard rolled ball screws are available with KURODA’s recommended shaft end finish
types for each size.
Other than KURODA’s recommended shaft end finish types described below, additional machining
including keyways, tapped holes, and D-cut processing are also available if requested. Pleasecontact KURODA with your orders. Model examples for finished shaft ends are described below.
Model example: Unfinished shaft ends (See left figure) → Finished shaft ends
GY1516BS-HULR-1200A → GY1516BS-HULR-1195X1128-CAY

30°

30°

3

ø5

PC

→Thread length→Overall screw shaft length

D4

C10 / Y

0.030 or less 0.100 or less---Tube method
Lip seal
Alvania Grease S2
Nut alone Screw shaft, nut

2
Supported end

M6×1(Oil hole)

32

Fixed end

012-0.25

ø10-0.015

Screw shaft
diameter ø15

0.
C

C

0.

5

5

-0

-0

5

0.

C0.5

ø12-0.018* Collar(Model: GY/W-C12)
C0.2

ø15

-0

ø10-0.015

A-0

C7 / Y● Shaft end finish type4-4.5 drilled hole

15 - 16
1.5 turns 2 circuits /Right-hand
2.778
12.7
GW
GY
4300
10200

ø9.6-0.09

Shaft diameter (mm) - Lead (mm)Number of circuits /Thread direction
Ball diameter (mm)Root diameter (mm)SeriesBasic dynamic load rating C (N)Basic static load rating C0 (N)Accuracy grade /Axial clearance symbol
Axial clearance (mm)Preload torque (N·cm)
Recirculation system
Wiper
LubricantPhosphate coating

C

R0.2 or less

10
A

B

X

B

White paint iscoated(ø12.7)

Z

41

(ø15)

-0.1

51
ø32-0.5

Screw shaft
diameter ø15● Ball screw specifications

Screw shaft diameter ø15, Lead 16 (Round nut)

+0.1

9.15 0

7 5

40

12

M12×1
15

55

Applicable supported end support unit
BUK-10S (Square type)
BUM-10S (Round type)B

R0.3
10 or less 10+0.14

1.15 0Applicable fixed end support unit
BUK-12, BUK-12F (Square type)
BUM-12, BUM-12F (Round type)● Optional specifications

5

L1 (Hardened portion)60• Anticorrosive black coating (coating thickness: 1 to 2 μm) is available.

Lt
Model No.
Model No.
(Unfinished(Unfinishedshaft ends)
shaft ends)
GW1516BS-HULR-0600A
GW1516BS-HULR-0600A
GW1516BS-HULR-1200A
GW1516BS-HULR-1200A
GY1516BS-HULR-0600A
GY1516BS-HULR-0600A
GY1516BS-HULR-1200A
GY1516BS-HULR-1200A

L1

L1

Lt

540
1140
540
1140

540
1140
540
1140

600
1200
600
1200

Maximum
Maximum
stroke stroke(L1 - nut(L1length)- nut length)
600
489
489
1200
1089 1089
600
489
489
1200
1089 1089
Lt

Lead accuracy
Lead accuracy
Cumulative
Cumulative
lead error
lead error
0.05/300
0.05/300
0.21/300
0.21/300

Accuracy
Accuracyof each ofparteach part
X
X
Z
Z
0.070 0.070
0.020 0.020
0.170 0.170
0.140 0.140----0.400 0.400

Mass Mass(kg)(kg)
1.15 1.15
1.98 1.98
1.15 1.15
1.98 1.98• At the time of delivery, grease is inserted inside of the nut, with rust-preventive oil also applied.
Before and during use, apply lubricant where appropriate.

D-46

D-47

GW series (Accuracy grade C7) / GY series (Accuracy grade C10)

Standard rolled ball screws are available with KURODA’s recommended shaft end finish
types for each size.
Other than KURODA’s recommended shaft end finish types described below, additional machining
including keyways, tapped holes, and D-cut processing are also available if requested. Pleasecontact KURODA with your orders. Model examples for finished shaft ends are described below.
Model example: Unfinished shaft ends (See left figure) → Finished shaft ends
GY1520BS-HULR-1200A → GY1520BS-HULR-1195X1128-CAY

30°
7

ø5

→Thread length→Overall screw shaft length

D4White paint iscoated(ø12.5)

A

B

+0.1

7 5

9.15 040

12Screw shaft
diameter ø15-0

ø10-0.015

5

5

M12×1
15

55

Applicable fixed end support unit
BUK-12, BUK-12F (Square type)
BUM-12, BUM-12F (Round type)● Optional specifications

B
5

L1 (Hardened portion)

60

Lt
Model No.
Model No.
(Unfinished(Unfinishedshaft ends)
shaft ends)
GW1520BS-HULR-0600A
GW1520BS-HULR-0600A
GW1520BS-HULR-1200A
GW1520BS-HULR-1200A
GY1520BS-HULR-0600A
GY1520BS-HULR-0600A
GY1520BS-HULR-1200A
GY1520BS-HULR-1200A

1.15 0Applicable supported end support unit
BUK-10S (Square type)
BUM-10S (Round type)

B
X

R0.3
10 or less 10

+0.14

(ø15)

-0.1

ø34-0.5

Z

R0.2 or less

10

C

-0

5

0.

C0.5

59
49

* Collar(Model: GY/W-C12)
C0.2

C

A

-0

34

Fixed end

012-0.250.

Supported end

M6×1(Oil hole)-00.030 or less 0.100 or less---Tube method
Lip seal
Alvania Grease S2
Nut alone Screw shaft, nut

5ø15

C10 / Y0.

PCø12-0.018

30°

ø9.6-0.09

C7 / Y● Shaft end finish type4-5.5 drilled hole

15 - 20
1.5 turns 2 circuits /Right-hand
3.175
12.5
GW
GY
5800
13300

ø10-0.015

Shaft diameter (mm) - Lead (mm)Number of circuits /Thread direction
Ball diameter (mm)Root diameter (mm)SeriesBasic dynamic load rating C (N)Basic static load rating C0 (N)Accuracy grade /Axial clearance symbol
Axial clearance (mm)Preload torque (N·cm)
Recirculation system
Wiper
LubricantPhosphate coating

C

Screw shaft
diameter ø15● Ball screw specifications

Screw shaft diameter ø15, Lead 20 (Round nut)

• Ball screw lubricating unit LUBSEAL can be equipped.
Model example: GY1520BS-HUSR-1195X1128-CAY→Wiper material S: LUBSEAL• Anticorrosive black coating (coating thickness: 1 to 2 μm) is available.

L1

L1

Lt

540
1140
540
1140

540
1140
540
1140

600
1200
600
1200

Maximum
Maximum
stroke stroke(L1 - nut(L1length)- nut length)
600
481
481
1200
1081 1081
600
481
481
1200
1081 1081
Lt

Lead accuracy
Lead accuracy
Cumulative
Cumulative
lead error
lead error
0.05/300
0.05/300
0.21/300
0.21/300

Accuracy
Accuracyof each ofparteach part
X
X
Z
Z
0.070 0.070
0.025 0.025
0.170 0.170
0.140 0.140----0.400 0.400

Mass Mass(kg)(kg)
1.24 1.24
2.07 2.07
1.24 1.24
2.07 2.07• At the time of delivery, grease is inserted inside of the nut, with rust-preventive oil also applied.
Before and during use, apply lubricant where appropriate.

D-48

D-49

GW series (Accuracy grade C7) / GY series (Accuracy grade C10)

→Thread length→Overall screw shaft length

+0.14

10

1.15 0ø35

A

B

White paint iscoated

9.15

+0.1
0

7 5

R0.3
or less
40

-0

5

5

0.

10

M12×1

Screw shaft
diameter ø16

R0.2 or less

15
55

12

Applicable supported end support unit
BUK-10S (Square type)
BUM-10S (Round type)

Applicable fixed end support unit
BUK-12, BUK-12F (Square type)
BUM-12, BUM-12F (Round type)● Optional specifications

B

B

-0

C

C0.5

ø15

* Collar(Model: GY/W-C12)
C0.2

-0

-0

A

ø9.6-0.09

ø10-0.015

38

ø10-0.015

Fixed end

012-0.25

C

Supported end

0.

44

9.5

8.3

X

Standard rolled ball screws are available with KURODA’s recommended shaft end finish
types for each size.
Other than KURODA’s recommended shaft end finish types described below, additional machining
including keyways, tapped holes, and D-cut processing are also available if requested. Pleasecontact KURODA with your orders. Model examples for finished shaft ends are described below.
Model example: Unfinished shaft ends (See left figure) → Finished shaft ends
GY1632QS-HEZR-1200A → GY1632QS-HEZR-1195X1128-CAY

ø12-0.018

C10 / Y

(ø16)

-0.1

PCD

0.030 or less 0.100 or less---End cap method
None
Alvania Grease S2
Nut alone Screw shaft, nut

36.3
16.8 105

ø35-0.5

6

ø5● Shaft end finish type5

Screw shaft
diameter ø16

C7 / Y30°

4-4.5 drilled hole
30°
14°
M6×1
(Oil hole)0.

Z

16 - 32
0.67 turns 3 circuits /Right-hand
3.175
13.5
GW
GY
4200
7700

C

Shaft diameter (mm) - Lead (mm)Number of circuits /Thread direction
Ball diameter (mm)Root diameter (mm)SeriesBasic dynamic load rating C (N)Basic static load rating C0 (N)Accuracy grade /Axial clearance symbol
Axial clearance (mm)Preload torque (N·cm)
Recirculation system
Wiper
LubricantPhosphate coating(ø13.5)● Ball screw specifications

Screw shaft diameter ø16, Lead 32 (Round nut)

• Anticorrosive black coating (coating thickness: 1 to 2 μm) is available.

L1 (Hardened portion)

60

Lt
Model No.
Model No.
(Unfinished(Unfinishedshaft ends)
shaft ends)
GW1632QS-HEZR-0600A
GW1632QS-HEZR-0600A
GW1632QS-HEZR-1200A
GW1632QS-HEZR-1200A
GY1632QS-HEZR-0600A
GY1632QS-HEZR-0600A
GY1632QS-HEZR-1200A
GY1632QS-HEZR-1200A

L1

L1

Lt

540
1140
540
1140

540
1140
540
1140

600
1200
600
1200

Maximum
Maximum
stroke stroke(L1 - nut(L1length)- nut length)
600
503
503
1200
1103 1103
600
503
503
1200
1103 1103
Lt

Lead accuracy
Lead accuracy
Cumulative
Cumulative
lead error
lead error
0.05/300
0.05/300
0.21/300
0.21/300

Accuracy
Accuracyof each ofparteach part
X
X
Z
Z
0.070 0.070
0.025 0.025
0.170 0.170
0.140 0.140----0.400 0.400

Mass Mass(kg)(kg)
1.24 1.24
2.19 2.19
1.24 1.24
2.19 2.19• At the time of delivery, grease is inserted inside of the nut, with rust-preventive oil also applied.
Before and during use, apply lubricant where appropriate.

D-50

D-51

GW series (Accuracy grade C7) / GY series (Accuracy grade C10)

Standard rolled ball screws are available with KURODA’s recommended shaft end finish
types for each size.
Other than KURODA’s recommended shaft end finish types described below, additional machining
including keyways, tapped holes, and D-cut processing are also available if requested. Pleasecontact KURODA with your orders. Model examples for finished shaft ends are described below.
Model example: Unfinished shaft ends (See left figure) → Finished shaft ends
GY2005DS-HULR-2000A → GY2005DS-HULR-1995X1908-CAY

30°
0

ø6

→Thread length→Overall screw shaft length

Fixed end

0

17-0.25

-0

-0

0.

-0

ø15-0.018

C0.5

C

5

0.

* Collar(Model: GY/W-C15)
C0.3

ø12-0.018

Supported end

-0

A

M6×1
(Oil hole)

5400.030 or less 0.100 or less---Tube method
Lip seal
Alvania Grease S2
Nut alone Screw shaft, nut

0.

C10 / Y

0

5

D5

C

PC

ø15-0.018

30°

ø20

C7 / Y● Shaft end finish type4-4.5 drilled hole

20 - 5
2.5 turns 1 circuit /Right-hand
3.175
17.5
GW
GY
6200
14700

C

Shaft diameter (mm) - Lead (mm)Number of circuits /Thread direction
Ball diameter (mm)Root diameter (mm)SeriesBasic dynamic load rating C (N)Basic static load rating C0 (N)Accuracy grade /Axial clearance symbol
Axial clearance (mm)Preload torque (N·cm)
Recirculation system
Wiper
LubricantPhosphate coatingø14.3-0.11● Ball screw specifications

Screw shaft diameter ø20, Lead 5 (Round nut)

B

White paint iscoatedR0.3
15 or less 15+0.14

1.15 0+0.1

9510.15 012

B

L1 (Hardened portion)

80
Lt

M15×1
20

75

Applicable supported end support unit
BUK-15S (Square type)
BUM-15S (Round type)5

55

Applicable fixed end support unit
BUK-15, BUK-15F (Square type)
BUM-15, BUM-15F (Round type)
Screw shaft
diameter ø20

A

B

X

Screw shaft
diameter ø20

R0.3 or less10(ø17.5)

Z

30

(ø20)

-0.1

ø40-0.540● Optional specifications• Ball screw lubricating unit LUBSEAL can be equipped.
Model example: GY2005DS-HUSR-1995X1908-CAY→Wiper material S: LUBSEAL• Anticorrosive black coating (coating thickness: 1 to 2 μm) is available.
Model No.
Model No.
(Unfinished(Unfinishedshaft ends)
shaft ends)
GW2005DS-HULR-0600A
GW2005DS-HULR-0600A
GW2005DS-HULR-1200A
GW2005DS-HULR-1200A
GW2005DS-HULR-2000A
GW2005DS-HULR-2000A
GY2005DS-HULR-0600A
GY2005DS-HULR-0600A
GY2005DS-HULR-1200A
GY2005DS-HULR-1200A
GY2005DS-HULR-2000A
GY2005DS-HULR-2000A

L1

L1

Lt

520
1120
1920
520
1120
1920

520
1120
1920
520
1120
1920

600
1200
2000
600
1200
2000

Maximum
Maximum
stroke stroke(L1 - nut(L1length)- nut length)
600
480
480
1200
1080 1080
2000
1880 1880
600
480
480
1200
1080 1080
2000
1880 1880
Lt

Lead accuracy
Lead accuracy
Cumulative
Cumulative
lead error
lead error
0.05/300
0.05/300

0.21/300
0.21/300

Accuracy
Accuracyof each ofparteach part
X
X
Z
Z
0.070 0.070
0.025 0.025
0.120 0.120
0.270 0.270
0.140 0.140----0.240 0.240
0.640 0.640

Mass Mass(kg)(kg)
1.85 1.85
3.33 3.33
5.29 5.29
1.85 1.85
3.33 3.33
5.29 5.29• At the time of delivery, grease is inserted inside of the nut, with rust-preventive oil also applied.
Before and during use, apply lubricant where appropriate.

D-52

D-53

GW series (Accuracy grade C7) / GY series (Accuracy grade C10)

● Shaft end finish type

Supported end

Fixed end

0

17-0.25

-0

5

5

0.

C

5

C

C0.5

0.

-0

* Collar(Model: GY/W-C15)
C0.3

-0

A

ø12-0.018-0

W A

ø14.3-0.11

22
or less17±0.050.

0.030 or less 0.100 or less---Tube method
Lip seal
Alvania Grease S2
Nut alone Screw shaft, nut

ø15-0.018

C10 / Y

→Thread length→Overall screw shaft lengthø15-0.018

9

M6×1(Oil hole)ø2024±0.053Standard rolled ball screws are available with KURODA’s recommended shaft end finish
types for each size.
Other than KURODA’s recommended shaft end finish types described below, additional machining
including keyways, tapped holes, and D-cut processing are also available if requested. Pleasecontact KURODA with your orders. Model examples for finished shaft ends are described below.
Model example: Unfinished shaft ends (See left figure) → Finished shaft ends
GY2005DS-NKLR-2000A → GY2005DS-NKLR-1995X1908-CAY

28
or less

C7 / Y5

20 - 5
2.5 turns 1 circuit /Right-hand
3.175
17.5
GW
GY
6200
14700

C

Shaft diameter (mm) - Lead (mm)Number of circuits /Thread direction
Ball diameter (mm)Root diameter (mm)SeriesBasic dynamic load rating C (N)Basic static load rating C0 (N)Accuracy grade /Axial clearance symbol
Axial clearance (mm)Preload torque (N·cm)
Recirculation system
Wiper
LubricantPhosphate coating48● Ball screw specifications

Screw shaft diameter ø20, Lead 5 (Square nut)

35

35

Z B

White paint iscoated

R0.3 or less

R0.3
15 or less 15+0.14

1.15 0+0.1

9510.15 055
75

12Screw shaft
diameter ø20

B

Applicable supported end support unit
BUK-15S (Square type)
BUM-15S (Round type)

A

L1 (Hardened portion)

80

Applicable fixed end support unit
BUK-15, BUK-15F (Square type)
BUM-15, BUM-15F (Round type)● Optional specifications• Anticorrosive black coating (coating thickness: 1 to 2 μm) is available.

Lt
Model No.
Model No.
(Unfinished(Unfinishedshaft ends)
shaft ends)
GW2005DS-NKLR-0600A
GW2005DS-NKLR-0600A
GW2005DS-NKLR-1200A
GW2005DS-NKLR-1200A
GW2005DS-NKLR-2000A
GW2005DS-NKLR-2000A
GY2005DS-NKLR-0600A
GY2005DS-NKLR-0600A
GY2005DS-NKLR-1200A
GY2005DS-NKLR-1200A
GY2005DS-NKLR-2000A
GY2005DS-NKLR-2000A

M15×1
20

Screw shaft
diameter ø20

A(ø17.5)

6.5

(ø20)

22

6.5

4-M6 depth 10

L1

L1

Lt

520
1120
1920
520
1120
1920

520
1120
1920
520
1120
1920

600
1200
2000
600
1200
2000

Maximum
Maximum
stroke stroke(L1 - nut(L1length)- nut length)
600
485
485
1200
1085 1085
2000
1885 1885
600
485
485
1200
1085 1085
2000
1885 1885
Lt

Lead accuracy
Lead accuracy
Cumulative
Cumulative
lead error
lead error
0.05/300
0.05/300

0.21/300
0.21/300

Accuracy
Accuracyof each ofparteach part
W
W
Z
Z
0.070 0.070
0.017 0.017
0.120 0.120
0.270 0.270
0.140 0.140----0.240 0.240
0.640 0.640

Mass Mass(kg)(kg)
1.87 1.87
3.34 3.34
5.31 5.31
1.87 1.87
3.34 3.34
5.31 5.31• At the time of delivery, grease is inserted inside of the nut, with rust-preventive oil also applied.
Before and during use, apply lubricant where appropriate.

D-54

D-55

GW series (Accuracy grade C7) / GY series (Accuracy grade C10)

→Thread length→Overall screw shaft length

D67

Supported end

1.15 0+0.1

9510.15 0Screw shaft
diameter ø20

B-0

ø12-0.018

50.

Applicable fixed end support unit
BUK-15, BUK-15F (Square type)
BUM-15, BUM-15F (Round type)● Optional specifications

7

L1 (Hardened portion)

80
Lt

Model No.
Model No.
(Unfinished(Unfinishedshaft ends)
shaft ends)
GW2010DS-HULR-0600A
GW2010DS-HULR-0600A
GW2010DS-HULR-1200A
GW2010DS-HULR-1200A
GW2010DS-HULR-2000A
GW2010DS-HULR-2000A
GY2010DS-HULR-0600A
GY2010DS-HULR-0600A
GY2010DS-HULR-1200A
GY2010DS-HULR-1200A
GY2010DS-HULR-2000A
GY2010DS-HULR-2000A

M15×1
20

75

12

Applicable supported end support unit
BUK-15S (Square type)
BUM-15S (Round type)
B

55

Screw shaft
diameter ø20

White paint iscoatedC

R0.3
15 or less 15

+0.14

B

5
C

R0.3 or less

12
A

X

0.

C0.5

-0

* Collar(Model: GY/W-C15)
C0.3

ø15-0.018-0-0ø15-0.018

Aø14.3-0.11

M6×1(Oil hole)52

Fixed end

0

17-0.25

ø20

C10 / Y

(ø20)

-0.1

PC

5

ø52-0.52

ø80.050 or less 0.150 or less---Tube method
Lip seal
Alvania Grease S2
Nut alone Screw shaft, nut
57
45Standard rolled ball screws are available with KURODA’s recommended shaft end finish
types for each size.
Other than KURODA’s recommended shaft end finish types described below, additional machining
including keyways, tapped holes, and D-cut processing are also available if requested. Pleasecontact KURODA with your orders. Model examples for finished shaft ends are described below.
Model example: Unfinished shaft ends (See left figure) → Finished shaft ends
GY2010DS-HULR-2000A → GY2010DS-HULR-1995X1908-CAY

0.

Z

C7 / Y● Shaft end finish type4-6.6 drilled hole
30°
30°

20 - 10
2.5 turns 1 circuit /Right-hand
4.7625
16.3
GW
GY
10600
22700

C

Shaft diameter (mm) - Lead (mm)Number of circuits /Thread direction
Ball diameter (mm)Root diameter (mm)SeriesBasic dynamic load rating C (N)Basic static load rating C0 (N)Accuracy grade /Axial clearance symbol
Axial clearance (mm)Preload torque (N·cm)
Recirculation system
Wiper
LubricantPhosphate coating(ø16.3)● Ball screw specifications

Screw shaft diameter ø20, Lead 10 (Round nut)

• Ball screw lubricating unit LUBSEAL can be equipped.
Model example: GY2010DS-HUSR-1995X1908-CAY→Wiper material S: LUBSEAL• Anticorrosive black coating (coating thickness: 1 to 2 μm) is available.

L1

L1

Lt

520
1120
1920
520
1120
1920

520
1120
1920
520
1120
1920

600
1200
2000
600
1200
2000

Maximum
Maximum
stroke stroke(L1 - nut(L1length)- nut length)
600
463
463
1200
1063 1063
2000
1863 1863
600
463
463
1200
1063 1063
2000
1863 1863
Lt

Lead accuracy
Lead accuracy
Cumulative
Cumulative
lead error
lead error
0.05/300
0.05/300

0.21/300
0.21/300

Accuracy
Accuracyof each ofparteach part
X
X
Z
Z
0.070 0.070
0.025 0.025
0.120 0.120
0.270 0.270
0.140 0.140----0.240 0.240
0.640 0.640

Mass Mass(kg)(kg)
2.47 2.47
3.95 3.95
5.92 5.92
2.47 2.47
3.95 3.95
5.92 5.92• At the time of delivery, grease is inserted inside of the nut, with rust-preventive oil also applied.
Before and during use, apply lubricant where appropriate.

D-56

D-57

GW series (Accuracy grade C7) / GY series (Accuracy grade C10)White paint iscoatedL1 (Hardened portion)

80
Lt

L1

L1

Lt

520
1120
1920
520
1120
1920

520
1120
1920
520
1120
1920

600
1200
2000
600
1200
2000

+0.1

95

10.15 0Maximum
Maximum
stroke stroke(L1 - nut(L1length)- nut length)
600
462
462
1200
1062 1062
2000
1862 1862
600
462
462
1200
1062 1062
2000
1862 1862
Lt

55

12

-0

5

5

0.
C
M15×1

20
75

Applicable supported end support unit
BUK-15S (Square type)
BUM-15S (Round type)A

R0.3
15 or less 15+0.14

1.15 0Applicable fixed end support unit
BUK-15, BUK-15F (Square type)
BUM-15, BUM-15F (Round type)
Screw shaft
diameter ø20

Screw shaft
diameter ø20

BModel No.
Model No.
(Unfinished(Unfinishedshaft ends)
shaft ends)
GW2010DS-NKLR-0600A
GW2010DS-NKLR-0600A
GW2010DS-NKLR-1200A
GW2010DS-NKLR-1200A
GW2010DS-NKLR-2000A
GW2010DS-NKLR-2000A
GY2010DS-NKLR-0600A
GY2010DS-NKLR-0600A
GY2010DS-NKLR-1200A
GY2010DS-NKLR-1200A
GY2010DS-NKLR-2000A
GY2010DS-NKLR-2000A

C

-0

35

B

(ø20)

A

(ø16.3)

R0.3 or less

11.5
6.5

Z

35

C0.5

5

58
4-M6 depth 10* Collar(Model: GY/W-C15)
C0.3

ø12-0.018

-0

A

-0

W A

ø14.3-0.1130
or less18±0.05

Fixed end

0

17-0.250.

Supported end

0.

0.050 or less 0.150 or less---Tube method
Lip seal
Alvania Grease S2
Nut alone Screw shaft, nut

ø15-0.018

C10 / Y

→Thread length→Overall screw shaft lengthø15-0.018

M6×1(Oil hole)ø2024±0.052
9Standard rolled ball screws are available with KURODA’s recommended shaft end finish
types for each size.
Other than KURODA’s recommended shaft end finish types described below, additional machining
including keyways, tapped holes, and D-cut processing are also available if requested. Pleasecontact KURODA with your orders. Model examples for finished shaft ends are described below.
Model example: Unfinished shaft ends (See left figure) → Finished shaft ends
GY2010DS-NKLR-2000A → GY2010DS-NKLR-1995X1908-CAY

30
or less

C7 / Y

11.5● Shaft end finish type

20 - 10
2.5 turns 1 circuit /Right-hand
4.7625
16.3
GW
GY
10600
22700

C

Shaft diameter (mm) - Lead (mm)Number of circuits /Thread direction
Ball diameter (mm)Root diameter (mm)SeriesBasic dynamic load rating C (N)Basic static load rating C0 (N)Accuracy grade /Axial clearance symbol
Axial clearance (mm)Preload torque (N·cm)
Recirculation system
Wiper
LubricantPhosphate coating48● Ball screw specifications

Screw shaft diameter ø20, Lead 10 (Square nut)

● Optional specifications• Anticorrosive black coating (coating thickness: 1 to 2 μm) is available.

Lead accuracy
Lead accuracy
Cumulative
Cumulative
lead error
lead error
0.05/300
0.05/300

0.21/300
0.21/300

Accuracy
Accuracyof each ofparteach part
W
W
Z
Z
0.070 0.070
0.017 0.017
0.120 0.120
0.270 0.270
0.140 0.140----0.240 0.240
0.640 0.640

Mass Mass(kg)(kg)
2.20 2.20
3.67 3.67
5.64 5.64
2.20 2.20
3.67 3.67
5.64 5.64• At the time of delivery, grease is inserted inside of the nut, with rust-preventive oil also applied.
Before and during use, apply lubricant where appropriate.

D-58

D-59

GW series (Accuracy grade C7) / GY series (Accuracy grade C10)

Standard rolled ball screws are available with KURODA’s recommended shaft end finish
types for each size.
Other than KURODA’s recommended shaft end finish types described below, additional machining
including keyways, tapped holes, and D-cut processing are also available if requested. Pleasecontact KURODA with your orders. Model examples for finished shaft ends are described below.
Model example: Unfinished shaft ends (See left figure) → Finished shaft ends
GY2020DS-HULR-2000A → GY2020DS-HULR-1995X1908-CAY

2

ø6

PC

→Thread length→Overall screw shaft length

D5

C10 / Y

M6×1
(Oil hole)39

0.030 or less 0.100 or less---Tube method
Lip seal
Alvania Grease S2
Nut alone Screw shaft, nut

0

Supported end

A

Fixed end0-0

ø12-0.018

C

0.

0.

5

5

-0

C

C0.5

5

0.

* Collar(Model: GY/W-C15)
C0.3

ø15-0.018-0ø15-0.018-017-0.25

ø20

C7 / Y● Shaft end finish type4-5.5 drilled hole
30°
°
0
3

20 - 20
2.5 turns 1 circuit /Right-hand
3.175
17.5
GW
GY
6200
14700

C

Shaft diameter (mm) - Lead (mm)Number of circuits /Thread direction
Ball diameter (mm)Root diameter (mm)SeriesBasic dynamic load rating C (N)Basic static load rating C0 (N)Accuracy grade /Axial clearance symbol
Axial clearance (mm)Preload torque (N·cm)
Recirculation system
Wiper
LubricantPhosphate coatingø14.3-0.11● Ball screw specifications

Screw shaft diameter ø20, Lead 20 (Round nut)

White paint iscoated+0.1

95

10.15 0

55

12

M15×1
20

75

Applicable supported end support unit
BUK-15S (Square type)
BUM-15S (Round type)

B

B

R0.3
15 or less 15+0.14

1.15 0Applicable fixed end support unit
BUK-15, BUK-15F (Square type)
BUM-15, BUM-15F (Round type)
Screw shaft
diameter ø20

A

B

X

Screw shaft
diameter ø20

R0.3 or less10(ø17.5)

Z

68

(ø20)

-0.1

ø39-0.578● Optional specifications

5
L1 (Hardened portion)

80
Lt• Ball screw lubricating unit LUBSEAL can be equipped.
Model example: GY2020DS-HUSR-1995X1908-CAY→Wiper material S: LUBSEAL• Anticorrosive black coating (coating thickness: 1 to 2 μm) is available.
Model No.
Model No.
(Unfinished(Unfinishedshaft ends)
shaft ends)
GW2020DS-HULR-0600A
GW2020DS-HULR-0600A
GW2020DS-HULR-1200A
GW2020DS-HULR-1200A
GW2020DS-HULR-2000A
GW2020DS-HULR-2000A
GY2020DS-HULR-0600A
GY2020DS-HULR-0600A
GY2020DS-HULR-1200A
GY2020DS-HULR-1200A
GY2020DS-HULR-2000A
GY2020DS-HULR-2000A

L1

L1

Lt

520
1120
1920
520
1120
1920

520
1120
1920
520
1120
1920

600
1200
2000
600
1200
2000

Maximum
Maximum
stroke stroke(L1 - nut(L1length)- nut length)
600
442
442
1200
1042 1042
2000
1842 1842
600
442
442
1200
1042 1042
2000
1842 1842
Lt

Lead accuracy
Lead accuracy
Cumulative
Cumulative
lead error
lead error
0.05/300
0.05/300

0.21/300
0.21/300

Accuracy
Accuracyof each ofparteach part
X
X
Z
Z
0.070 0.070
0.025 0.025
0.120 0.120
0.270 0.270
0.140 0.140----0.240 0.240
0.640 0.640

Mass Mass(kg)(kg)
2.06 2.06
3.53 3.53
5.50 5.50
2.06 2.06
3.53 3.53
5.50 5.50• At the time of delivery, grease is inserted inside of the nut, with rust-preventive oil also applied.
Before and during use, apply lubricant where appropriate.

D-60

D-61

GW series (Accuracy grade C7) / GY series (Accuracy grade C10)

Standard rolled ball screws are available with KURODA’s recommended shaft end finish
types for each size.
Other than KURODA’s recommended shaft end finish types described below, additional machining
including keyways, tapped holes, and D-cut processing are also available if requested. Pleasecontact KURODA with your orders. Model examples for finished shaft ends are described below.
Model example: Unfinished shaft ends (See left figure) → Finished shaft ends
GY2020ES-HULR-2000A → GY2020ES-HULR-1995X1908-CAY

2

ø6

PC

D5

C10 / Y

M6×1
(Oil hole)39

0.030 or less 0.100 or less---Tube method
Lip seal
Alvania Grease S2
Nut alone Screw shaft, nut→Thread length→Overall screw shaft length0

Supported end

Fixed end

0

17-0.25-0

ø12-0.018

5

5

C

0.

0.
C

5

0.

C0.5

-0

-0
-0

ø15-0.018* Collar(Model: GY/W-C15)
C0.3

ø15-0.018

Aø20

C7 / Y● Shaft end finish type4-5.5 drilled hole
30°
°
0
3

20 - 20
2.5 turns 2 circuits /Right-hand
3.175
17.5
GW
GY
11200
29400

C

Shaft diameter (mm) - Lead (mm)Number of circuits /Thread direction
Ball diameter (mm)Root diameter (mm)SeriesBasic dynamic load rating C (N)Basic static load rating C0 (N)Accuracy grade /Axial clearance symbol
Axial clearance (mm)Preload torque (N·cm)
Recirculation system
Wiper
LubricantPhosphate coatingø14.3-0.11● Ball screw specifications

Screw shaft diameter ø20, Lead 20 (Round nut)

White paint iscoated+0.1

95

10.15 0

55

12

M15×1
20

75

Applicable supported end support unit
BUK-15S (Square type)
BUM-15S (Round type)

B

B

R0.3
15 or less 15+0.14

1.15 0Applicable fixed end support unit
BUK-15, BUK-15F (Square type)
BUM-15, BUM-15F (Round type)
Screw shaft
diameter ø20

A

B

X

Screw shaft
diameter ø20

R0.3 or less10(ø17.5)

Z

68

(ø20)

-0.1

ø39-0.578● Optional specifications

5
L1 (Hardened portion)

80
Lt• Ball screw lubricating unit LUBSEAL can be equipped.
Model example: GY2020ES-HUSR-1995X1908-CAY→Wiper material S: LUBSEAL• Anticorrosive black coating (coating thickness: 1 to 2 μm) is available.
Model No.
Model No.
(Unfinished(Unfinishedshaft ends)
shaft ends)
GW2020ES-HULR-0600A
GW2020ES-HULR-0600A
GW2020ES-HULR-1200A
GW2020ES-HULR-1200A
GW2020ES-HULR-2000A
GW2020ES-HULR-2000A
GY2020ES-HULR-0600A
GY2020ES-HULR-0600A
GY2020ES-HULR-1200A
GY2020ES-HULR-1200A
GY2020ES-HULR-2000A
GY2020ES-HULR-2000A

L1

L1

Lt

520
1120
1920
520
1120
1920

520
1120
1920
520
1120
1920

600
1200
2000
600
1200
2000

Maximum
Maximum
stroke stroke(L1 - nut(L1length)- nut length)
600
442
442
1200
1042 1042
2000
1842 1842
600
442
442
1200
1042 1042
2000
1842 1842
Lt

Lead accuracy
Lead accuracy
Cumulative
Cumulative
lead error
lead error
0.05/300
0.05/300

0.21/300
0.21/300

Accuracy
Accuracyof each ofparteach part
X
X
Z
Z
0.070 0.070
0.025 0.025
0.120 0.120
0.270 0.270
0.140 0.140----0.240 0.240
0.640 0.640

Mass Mass(kg)(kg)
2.06 2.06
3.53 3.53
5.50 5.50
2.06 2.06
3.53 3.53
5.50 5.50• At the time of delivery, grease is inserted inside of the nut, with rust-preventive oil also applied.
Before and during use, apply lubricant where appropriate.

D-62

D-63

GW series (Accuracy grade C7) / GY series (Accuracy grade C10)

(Oil hole)

ø62
PCD

C10 / Y

Standard rolled ball screws are available with KURODA’s recommended shaft end finish
types for each size.
Other than KURODA’s recommended shaft end finish types described below, additional machining
including keyways, tapped holes, and D-cut processing are also available if requested. Pleasecontact KURODA with your orders. Model examples for finished shaft ends are described below.
Model example: Unfinished shaft ends (See left figure) → Finished shaft ends
GY2040QS-HEZR-2000A → GY2040QS-HEZR-1995X1908-CAY→Thread length→Overall screw shaft length50
Supported end

0.030 or less 0.100 or less---End cap method
None
Alvania Grease S2
Nut alone Screw shaft, nut

0
Fixed end17-0.25

44
A

X

White paint iscoated(ø17.5)

A

(ø20)

B

+0.1

ø40

-0.1

13.7

10.15 0

95

-0

5
C

0.

0.
55

M15×1
20

75

12

Applicable supported end support unit
BUK-15S (Square type)
BUM-15S (Round type)

Applicable fixed end support unit
BUK-15, BUK-15F (Square type)
BUM-15, BUM-15F (Round type)● Optional specifications

B

B

5

-0

R0.3
15 or less 15+0.14

1.15 05

ø40-0.5

Screw shaft
diameter ø20

Z

C
R0.3 or less23.7 10 11

Screw shaft
diameter ø20

44.7

ø12-0.018

ø15-0.018

C0.5

5

0.

* Collar(Model: GY/W-C15)
C0.3

ø20

-0

ø15-0.018-0C7 / Y● Shaft end finish type4-5.5 drilled hole
30°
°
0
3
14°
M6×1

20 - 40
0.67 turns 3 circuits /Right-hand
3.175
17.5
GW
GY
4700
10300

C

Shaft diameter (mm) - Lead (mm)Number of circuits /Thread direction
Ball diameter (mm)Root diameter (mm)SeriesBasic dynamic load rating C (N)Basic static load rating C0 (N)Accuracy grade /Axial clearance symbol
Axial clearance (mm)Preload torque (N·cm)
Recirculation system
Wiper
LubricantPhosphate coatingø14.3-0.11● Ball screw specifications

Screw shaft diameter ø20, Lead 40 (Round nut)

• Anticorrosive black coating (coating thickness: 1 to 2 μm) is available.

L1 (Hardened portion)

80
Lt

Model No.
Model No.
(Unfinished(Unfinishedshaft ends)
shaft ends)
GW2040QS-HEZR-0600A
GW2040QS-HEZR-0600A
GW2040QS-HEZR-1200A
GW2040QS-HEZR-1200A
GW2040QS-HEZR-2000A
GW2040QS-HEZR-2000A
GY2040QS-HEZR-0600A
GY2040QS-HEZR-0600A
GY2040QS-HEZR-1200A
GY2040QS-HEZR-1200A
GY2040QS-HEZR-2000A
GY2040QS-HEZR-2000A

L1

L1

Lt

520
1120
1920
520
1120
1920

520
1120
1920
520
1120
1920

600
1200
2000
600
1200
2000

Maximum
Maximum
stroke stroke(L1 - nut(L1length)- nut length)
600
475
475
1200
1075 1075
2000
1875 1875
600
475
475
1200
1075 1075
2000
1875 1875
Lt

Lead accuracy
Lead accuracy
Cumulative
Cumulative
lead error
lead error
0.05/300
0.05/300

0.21/300
0.21/300

Accuracy
Accuracyof each ofparteach part
X
X
Z
Z
0.070 0.070
0.025 0.025
0.120 0.120
0.270 0.270
0.140 0.140----0.240 0.240
0.640 0.640

Mass Mass(kg)(kg)
1.90 1.90
3.37 3.37
5.34 5.34
1.90 1.90
3.37 3.37
5.34 5.34• At the time of delivery, grease is inserted inside of the nut, with rust-preventive oil also applied.
Before and during use, apply lubricant where appropriate.

D-64

D-65

GW series (Accuracy grade C7) / GY series (Accuracy grade C10)

Standard rolled ball screws are available with KURODA’s recommended shaft end finish
types for each size.
Other than KURODA’s recommended shaft end finish types described below, additional machining
including keyways, tapped holes, and D-cut processing are also available if requested. Pleasecontact KURODA with your orders. Model examples for finished shaft ends are described below.
Model example: Unfinished shaft ends (See left figure) → Finished shaft ends
GY2505DS-HULR-2500A → GY2505DS-HULR-2490X2372-CAY

7

ø6

PC

→Thread length→Overall screw shaft length

D5

C10 / Y

0.030 or less 0.100 or less---Tube method
Lip seal
Alvania Grease S2
Nut alone Screw shaft, nut

43

5

M6×1
(Oil hole)

Supported end

Fixed end

022-0.35-0

ø15-0.018

5

5

0.
C

C

1

0.

C0.3

-0

(Model: GY/W-C20)

ø20-0.021* Collar
C0.5

ø25

-0

ø20-0.021

A-0

C7 / Y● Shaft end finish type4-5.5 drilled hole
30°
°
0
3

25 - 5
2.5 turns 1 circuit /Right-hand
3.175
21.8
GW
GY
6600
18700

C

Shaft diameter (mm) - Lead (mm)Number of circuits /Thread direction
Ball diameter (mm)Root diameter (mm)SeriesBasic dynamic load rating C (N)Basic static load rating C0 (N)Accuracy grade /Axial clearance symbol
Axial clearance (mm)Preload torque (N·cm)
Recirculation system
Wiper
LubricantPhosphate coating

ø19-0.21● Ball screw specifications

Screw shaft diameter ø25, Lead 5 (Round nut)

R0.3 or less

10

A

B

White paint iscoated(ø21.8)

Z

30

(ø25)

-0.1

ø43-0.540+0.14

1.35 0
15.35

20

+0.1
0

12 5

B

Applicable supported end support unit
BUK-20S (Square type)
BUM-20S (Round type)

B
5

73

M20×1

16
27

100

18

X

R0.3
or less

Applicable fixed end support unit
BUK-20, BUK-20F (Square type)
BUM-20, BUM-20F (Round type)● Optional specifications

L1 (Hardened portion)

110
Lt• Ball screw lubricating unit LUBSEAL can be equipped.
Model example: GY2505DS-HUSR-2490X2372-CAY→Wiper material S: LUBSEAL

Model No.
Model No.
(Unfinished(Unfinishedshaft ends)
shaft ends)
GW2505DS-HULR-1000A
GW2505DS-HULR-1000A
GW2505DS-HULR-2000A
GW2505DS-HULR-2000A
GW2505DS-HULR-2500A
GW2505DS-HULR-2500A
GY2505DS-HULR-1000A
GY2505DS-HULR-1000A
GY2505DS-HULR-2000A
GY2505DS-HULR-2000A
GY2505DS-HULR-2500A
GY2505DS-HULR-2500A

L1

L1

Lt

890
1890
2390
890
1890
2390

890
1890
2390
890
1890
2390

1000
2000
2500
1000
2000
2500

Maximum
Maximum
stroke stroke(L1 - nut(L1length)- nut length)
1000
850
850
2000
1850 1850
2500
2350 2350
1000
850
850
2000
1850 1850
2500
2350 2350
Lt

Lead accuracy
Lead accuracy
Cumulative
Cumulative
lead error
lead error
0.05/300
0.05/300

0.21/300
0.21/300

Accuracy
Accuracyof each ofparteach part
X
X
Z
Z
0.080 0.080
0.025 0.025
0.200 0.200
0.260 0.260
0.160 0.160----0.400 0.400
0.640 0.640

Screw shaft
diameter ø25

Screw shaft
diameter ø25• Anticorrosive black coating (coating thickness: 1 to 2 μm) is available.
Mass Mass(kg)(kg)
4.26 4.26
8.10 8.10
10.02 10.02
4.26 4.26
8.10 8.10
10.02 10.02• At the time of delivery, grease is inserted inside of the nut, with rust-preventive oil also applied.
Before and during use, apply lubricant where appropriate.

D-66

D-67

GW series (Accuracy grade C7) / GY series (Accuracy grade C10)

Standard rolled ball screws are available with KURODA’s recommended shaft end finish
types for each size.
Other than KURODA’s recommended shaft end finish types described below, additional machining
including keyways, tapped holes, and D-cut processing are also available if requested. Pleasecontact KURODA with your orders. Model examples for finished shaft ends are described below.
Model example: Unfinished shaft ends (See left figure) → Finished shaft ends
GY2505ES-HULR-2500A → GY2505ES-HULR-2490X2372-CAY

7

ø6

PC

→Thread length→Overall screw shaft length

D5

C10 / Y

0.030 or less 0.100 or less---Tube method
Lip seal
Alvania Grease S2
Nut alone Screw shaft, nut

43

5

M6×1
(Oil hole)

Supported end

A

B

White paint iscoated+0.14

201.35 0
15.35

+0.1
0

12 5

18

X

B

5

73

C

0.

0.

5

5

-0

ø15-0.018-0R0.3
or less

M20×1

16
27

100

Applicable supported end support unit
BUK-20S (Square type)
BUM-20S (Round type)Bø20-0.021

C(ø21.8)R0.3 or less

10

(ø25)

-0.1

ø43-0.5

C0.3

1

Z

(Model: GY/W-C20)

ø25

-0

ø20-0.021* Collar
C0.5

55
45

Fixed end

022-0.35

A-0

C7 / Y● Shaft end finish type4-5.5 drilled hole
30°
°
0
3

25 - 5
2.5 turns 2 circuits /Right-hand
3.175
21.8
GW
GY
11900
37300

C

Shaft diameter (mm) - Lead (mm)Number of circuits /Thread direction
Ball diameter (mm)Root diameter (mm)SeriesBasic dynamic load rating C (N)Basic static load rating C0 (N)Accuracy grade /Axial clearance symbol
Axial clearance (mm)Preload torque (N·cm)
Recirculation system
Wiper
LubricantPhosphate coating

ø19-0.21● Ball screw specifications

Screw shaft diameter ø25, Lead 5 (Round nut)

Applicable fixed end support unit
BUK-20, BUK-20F (Square type)
BUM-20, BUM-20F (Round type)● Optional specifications

L1 (Hardened portion)

110
Lt• Ball screw lubricating unit LUBSEAL can be equipped.
Model example: GY2505ES-HUSR-2490X2372-CAY→Wiper material S: LUBSEAL

Model No.
Model No.
(Unfinished(Unfinishedshaft ends)
shaft ends)
GW2505ES-HULR-1000A
GW2505ES-HULR-1000A
GW2505ES-HULR-2000A
GW2505ES-HULR-2000A
GW2505ES-HULR-2500A
GW2505ES-HULR-2500A
GY2505ES-HULR-1000A
GY2505ES-HULR-1000A
GY2505ES-HULR-2000A
GY2505ES-HULR-2000A
GY2505ES-HULR-2500A
GY2505ES-HULR-2500A

L1

L1

Lt

890
1890
2390
890
1890
2390

890
1890
2390
890
1890
2390

1000
2000
2500
1000
2000
2500

Maximum
Maximum
stroke stroke(L1 - nut(L1length)- nut length)
1000
835
835
2000
1835 1835
2500
2335 2335
1000
835
835
2000
1835 1835
2500
2335 2335
Lt

Lead accuracy
Lead accuracy
Cumulative
Cumulative
lead error
lead error
0.05/300
0.05/300

0.21/300
0.21/300

Accuracy
Accuracyof each ofparteach part
X
X
Z
Z
0.080 0.080
0.025 0.025
0.200 0.200
0.260 0.260
0.160 0.160----0.400 0.400
0.640 0.640

Screw shaft
diameter ø25

Screw shaft
diameter ø25• Anticorrosive black coating (coating thickness: 1 to 2 μm) is available.
Mass Mass(kg)(kg)
4.33 4.33
8.18 8.18
10.10 10.10
4.33 4.33
8.18 8.18
10.10 10.10• At the time of delivery, grease is inserted inside of the nut, with rust-preventive oil also applied.
Before and during use, apply lubricant where appropriate.

D-68

D-69

GW series (Accuracy grade C7) / GY series (Accuracy grade C10)

● Shaft end finish type

C

0.

0.

5

5

-0

-0

C

C0.3

ø20-0.021(Model: GY/W-C20)

C0.5

ø15-0.018

Fixed end

022-0.35* Collar-0Aø19-0.21

W A

25
or less-0

20±0.05

Supported end

10.030 or less 0.100 or less---Tube method
Lip seal
Alvania Grease S2
Nut alone Screw shaft, nut→Thread length→Overall screw shaft lengthø20-0.021

C10 / Y

M6×1
(Oil hole)ø2530±0.055
9.5

Standard rolled ball screws are available with KURODA’s recommended shaft end finish
types for each size.
Other than KURODA’s recommended shaft end finish types described below, additional machining
including keyways, tapped holes, and D-cut processing are also available if requested. Pleasecontact KURODA with your orders. Model examples for finished shaft ends are described below.
Model example: Unfinished shaft ends (See left figure) → Finished shaft ends
GY2505DS-NKLR-2500A → GY2505DS-NKLR-2490X2372-CAY

33
or less

C7 / Y7

25 - 5
2.5 turns 1 circuit /Right-hand
3.175
21.8
GW
GY
6600
18700

C

Shaft diameter (mm) - Lead (mm)Number of circuits /Thread direction
Ball diameter (mm)Root diameter (mm)SeriesBasic dynamic load rating C (N)Basic static load rating C0 (N)Accuracy grade /Axial clearance symbol
Axial clearance (mm)Preload torque (N·cm)
Recirculation system
Wiper
LubricantPhosphate coating60● Ball screw specifications

Screw shaft diameter ø25, Lead 5 (Square nut)

35
White paint iscoated

R0.3 or less(ø21.8)

A

(ø25)

B

6.5
10

Z

22

40

4-M8 depth 12

+0.14

20

1.35 0
15.35

+0.1
0

12 5

18

B
L1 (Hardened portion)

110

73

M20×1

16
27

100

Applicable supported end support unit
BUK-20S (Square type)
BUM-20S (Round type)A

R0.3
or less

Applicable fixed end support unit
BUK-20, BUK-20F (Square type)
BUM-20, BUM-20F (Round type)● Optional specifications• Anticorrosive black coating (coating thickness: 1 to 2 μm) is available.

Model No.
Model No.
(Unfinished(Unfinishedshaft ends)
shaft ends)
GW2505DS-NKLR-1000A
GW2505DS-NKLR-1000A
GW2505DS-NKLR-2000A
GW2505DS-NKLR-2000A
GW2505DS-NKLR-2500A
GW2505DS-NKLR-2500A
GY2505DS-NKLR-1000A
GY2505DS-NKLR-1000A
GY2505DS-NKLR-2000A
GY2505DS-NKLR-2000A
GY2505DS-NKLR-2500A
GY2505DS-NKLR-2500A

L1

L1

Lt

890
1890
2390
890
1890
2390

890
1890
2390
890
1890
2390

1000
2000
2500
1000
2000
2500

Maximum
Maximum
stroke stroke(L1 - nut(L1length)- nut length)
1000
855
855
2000
1855 1855
2500
2355 2355
1000
855
855
2000
1855 1855
2500
2355 2355
Lt

Lead accuracy
Lead accuracy
Cumulative
Cumulative
lead error
lead error
0.05/300
0.05/300

0.21/300
0.21/300

Accuracy
Accuracyof each ofparteach part
W
W
Z
Z
0.080 0.080
0.017 0.017
0.200 0.200
0.260 0.260
0.160 0.160----0.400 0.400
0.640 0.640

Mass Mass(kg)(kg)
4.40 4.40
8.24 8.24
10.17 10.17
4.40 4.40
8.24 8.24
10.17 10.17

Screw shaft
diameter ø25

Screw shaft
diameter ø25

Lt• At the time of delivery, grease is inserted inside of the nut, with rust-preventive oil also applied.
Before and during use, apply lubricant where appropriate.

D-70

D-71

GW series (Accuracy grade C7) / GY series (Accuracy grade C10)

→Thread length→Overall screw shaft lengthPC

C10 / Y

D7

8

Supported end

R0.3 or lessWhite paint iscoated(ø20.3)B

20

1.35 0
15.35

+0.1
0

12 5

18

B

Screw shaft
diameter ø25-0

ø15-0.018

5

5

0.
C

27

Applicable fixed end support unit
BUK-20, BUK-20F (Square type)
BUM-20, BUM-20F (Round type)● Optional specifications

10
110
Lt

Model No.
Model No.
(Unfinished(Unfinishedshaft ends)
shaft ends)
GW2510ES-HULR-1000A
GW2510ES-HULR-1000A
GW2510ES-HULR-2000A
GW2510ES-HULR-2000A
GW2510ES-HULR-2500A
GW2510ES-HULR-2500A
GY2510ES-HULR-1000A
GY2510ES-HULR-1000A
GY2510ES-HULR-2000A
GY2510ES-HULR-2000A
GY2510ES-HULR-2500A
GY2510ES-HULR-2500A

73

M20×1

16

• Ball screw lubricating unit LUBSEAL can be equipped.
Model example: GY2510ES-HUSR-2490X2372-CAY→Wiper material S: LUBSEAL• Anticorrosive black coating (coating thickness: 1 to 2 μm) is available.

L1

L1

Lt

890
1890
2390
890
1890
2390

890
1890
2390
890
1890
2390

1000
2000
2500
1000
2000
2500

Maximum
Maximum
stroke stroke(L1 - nut(L1length)- nut length)
1000
798
798
2000
1798 17982500
2298 2298
1000
798
798
2000
1798 17982500
2298 2298
Lt

Lead accuracy
Lead accuracy
Cumulative
Cumulative
lead error
lead error
0.05/300
0.05/300

0.21/300
0.21/300

Accuracy
Accuracyof each ofparteach part
X
X
Z
Z
0.080 0.080
0.025 0.025
0.200 0.200
0.260 0.260
0.160 0.160----0.400 0.400
0.640 0.640

Screw shaft
diameter ø25

L1 (Hardened portion)

R0.3
or less

100

Applicable supported end support unit
BUK-20S (Square type)
BUM-20S (Round type)
B

-0

C

15
A

0.

C0.3

ø25

(Model: GY/W-C20)

C0.5

ø20-0.021* Collar-0

ø19-0.21

A

+0.14

X

Fixed end

022-0.35

M6×1(Oil hole)

-0

60

(ø25)

-0.1

ø60-0.56

ø90.070 or less 0.200 or less---Tube method
Lip seal
Alvania Grease S2
Nut alone Screw shaft, nut

9277Standard rolled ball screws are available with KURODA’s recommended shaft end finish
types for each size.
Other than KURODA’s recommended shaft end finish types described below, additional machining
including keyways, tapped holes, and D-cut processing are also available if requested. Pleasecontact KURODA with your orders. Model examples for finished shaft ends are described below.
Model example: Unfinished shaft ends (See left figure) → Finished shaft ends
GY2510ES-HULR-2500A → GY2510ES-HULR-2490X2372-CAY

1Z

C7 / Y● Shaft end finish type4-9 drilled hole
30°
30°

25 - 10
2.5 turns 2 circuits /Right-hand
6.35
20.3
GW
GY
27500
76300

C

Shaft diameter (mm) - Lead (mm)Number of circuits /Thread direction
Ball diameter (mm)Root diameter (mm)SeriesBasic dynamic load rating C (N)Basic static load rating C0 (N)Accuracy grade /Axial clearance symbol
Axial clearance (mm)Preload torque (N·cm)
Recirculation system
Wiper
LubricantPhosphate coating

ø20-0.021● Ball screw specifications

Screw shaft diameter ø25, Lead 10 (Round nut)

Mass Mass(kg)(kg)
5.70 5.70
9.54 9.54
11.46 11.46
5.70 5.70
9.54 9.54
11.46 11.46• At the time of delivery, grease is inserted inside of the nut, with rust-preventive oil also applied.
Before and during use, apply lubricant where appropriate.

D-72

D-73

GW series (Accuracy grade C7) / GY series (Accuracy grade C10)

-0

5

5

0.
C

C

0.

C0.3

-0

(Model: GY/W-C20)

ø20-0.021* CollarC0.5

ø15-0.018

Fixed end

022-0.35

ø25

A

-0

W A

ø19-0.2130
or less23±0.05

Supported end

10.070 or less 0.200 or less---Tube method
Lip seal
Alvania Grease S2
Nut alone Screw shaft, nut-0

C10 / Y

→Thread length→Overall screw shaft lengthø20-0.021

30±0.05

M6×1(Oil hole)

10Standard rolled ball screws are available with KURODA’s recommended shaft end finish
types for each size.
Other than KURODA’s recommended shaft end finish types described below, additional machining
including keyways, tapped holes, and D-cut processing are also available if requested. Pleasecontact KURODA with your orders. Model examples for finished shaft ends are described below.
Model example: Unfinished shaft ends (See left figure) → Finished shaft ends
GY2510ES-NKLR-2500A → GY2510ES-NKLR-2490X2372-CAY

39
or less

C7 / Y10● Shaft end finish type

25 - 10
2.5 turns 2 circuits /Right-hand
6.35
20.3
GW
GY
27500
76300

C

Shaft diameter (mm) - Lead (mm)Number of circuits /Thread direction
Ball diameter (mm)Root diameter (mm)SeriesBasic dynamic load rating C (N)Basic static load rating C0 (N)Accuracy grade /Axial clearance symbol
Axial clearance (mm)Preload torque (N·cm)
Recirculation system
Wiper
LubricantPhosphate coating60● Ball screw specifications

Screw shaft diameter ø25, Lead 10 (Square nut)

94
White paint iscoated

R0.3 or less(ø20.3)

B

(ø25)

A

17
10

Z

60

40

4-M8 depth 12

+0.14

20

1.35 0
15.35

+0.1
0

12 5

18

B
L1 (Hardened portion)

110

73

M20×1

16
27

100

Applicable supported end support unit
BUK-20S (Square type)
BUM-20S (Round type)A

R0.3
or less

Applicable fixed end support unit
BUK-20, BUK-20F (Square type)
BUM-20, BUM-20F (Round type)● Optional specifications• Anticorrosive black coating (coating thickness: 1 to 2 μm) is available.

Model No.
Model No.
(Unfinished(Unfinishedshaft ends)
shaft ends)
GW2510ES-NKLR-1000A
GW2510ES-NKLR-1000A
GW2510ES-NKLR-2000A
GW2510ES-NKLR-2000A
GW2510ES-NKLR-2500A
GW2510ES-NKLR-2500A
GY2510ES-NKLR-1000A
GY2510ES-NKLR-1000A
GY2510ES-NKLR-2000A
GY2510ES-NKLR-2000A
GY2510ES-NKLR-2500A
GY2510ES-NKLR-2500A

L1

L1

Lt

890
1890
2390
890
1890
2390

890
1890
2390
890
1890
2390

1000
2000
2500
1000
2000
2500

Maximum
Maximum
stroke stroke(L1 - nut(L1length)- nut length)
1000
796
796
2000
1796 1796
2500
2296 2296
1000
796
796
2000
1796 1796
2500
2296 2296
Lt

Lead accuracy
Lead accuracy
Cumulative
Cumulative
lead error
lead error
0.05/300
0.05/300

0.21/300
0.21/300

Accuracy
Accuracyof each ofparteach part
W
W
Z
Z
0.080 0.080
0.017 0.017
0.200 0.200
0.260 0.260
0.160 0.160----0.400 0.400
0.640 0.640

Mass Mass(kg)(kg)
5.74 5.74
9.59 9.59
11.51 11.51
5.74 5.74
9.59 9.59
11.51 11.51

Screw shaft
diameter ø25

Screw shaft
diameter ø25

Lt• At the time of delivery, grease is inserted inside of the nut, with rust-preventive oil also applied.
Before and during use, apply lubricant where appropriate.

D-74

D-75

GW series (Accuracy grade C7) / GY series (Accuracy grade C10)

Standard rolled ball screws are available with KURODA’s recommended shaft end finish
types for each size.
Other than KURODA’s recommended shaft end finish types described below, additional machining
including keyways, tapped holes, and D-cut processing are also available if requested. Pleasecontact KURODA with your orders. Model examples for finished shaft ends are described below.
Model example: Unfinished shaft ends (See left figure) → Finished shaft ends
GY2525DS-HULR-2500A → GY2525DS-HULR-2490X2372-CAY

4

ø7→Thread length→Overall screw shaft length

D6

-0

5
0.
C

C

1

C0.3

5

(Model: GY/W-C20)

ø15-0.018* Collar
C0.5

-0

-0

A

Fixed end

022-0.35

ø20-0.021

47

Supported end

M6×1(Oil hole)-00.050 or less 0.120 or less---Tube method
Lip seal
Alvania Grease S2
Nut alone Screw shaft, nut

ø25

C10 / Y00.

PC

ø19-0.21

C7 / Y● Shaft end finish type4-6.6 drilled hole
30°
°
0
3

25 - 25
2.5 turns 1 circuit /Right-hand
3.9688
21.5
GW
GY
9300
22700

C

Shaft diameter (mm) - Lead (mm)Number of circuits /Thread direction
Ball diameter (mm)Root diameter (mm)SeriesBasic dynamic load rating C (N)Basic static load rating C0 (N)Accuracy grade /Axial clearance symbol
Axial clearance (mm)Preload torque (N·cm)
Recirculation system
Wiper
LubricantPhosphate coating

ø20-0.021● Ball screw specifications

Screw shaft diameter ø25, Lead 25 (Round nut)

R0.3 or less

12
A

B

110
Lt

Screw shaft
diameter ø25

15.35

12 5

+0.1
0

18

R0.3
or less
73

M20×1

16
27

100

Applicable fixed end support unit
BUK-20, BUK-20F (Square type)
BUM-20, BUM-20F (Round type)● Optional specifications

6

L1 (Hardened portion)

Model No.
Model No.
(Unfinished(Unfinishedshaft ends)
shaft ends)
GW2525DS-HULR-1000A
GW2525DS-HULR-1000A
GW2525DS-HULR-2000A
GW2525DS-HULR-2000A
GW2525DS-HULR-2500A
GW2525DS-HULR-2500A
GY2525DS-HULR-1000A
GY2525DS-HULR-1000A
GY2525DS-HULR-2000A
GY2525DS-HULR-2000A
GY2525DS-HULR-2500A
GY2525DS-HULR-2500A

20

Applicable supported end support unit
BUK-20S (Square type)
BUM-20S (Round type)

B

B

+0.14

1.35 0• Ball screw lubricating unit LUBSEAL can be equipped.
Model example: GY2525DS-HUSR-2490X2372-CAY→Wiper material S: LUBSEAL• Anticorrosive black coating (coating thickness: 1 to 2 μm) is available.

L1

L1

Lt

890
1890
2390
890
1890
2390

890
1890
2390
890
1890
2390

1000
2000
2500
1000
2000
2500

Maximum
Maximum
stroke stroke(L1 - nut(L1length)- nut length)
1000
794
794
2000
1794 1794
2500
2294 2294
1000
794
794
2000
1794 1794
2500
2294 2294
Lt

Lead accuracy
Lead accuracy
Cumulative
Cumulative
lead error
lead error
0.05/300
0.05/300

0.21/300
0.21/300

Accuracy
Accuracyof each ofparteach part
X
X
Z
Z
0.080 0.080
0.025 0.025
0.200 0.200
0.260 0.260
0.160 0.160----0.400 0.400
0.640 0.640

Screw shaft
diameter ø25

X

White paint iscoated(ø21.5)

Z

84

(ø25)

-0.1

ø47-0.5

96

Mass Mass(kg)(kg)
4.87 4.87
8.71 8.71
10.63 10.63
4.87 4.87
8.71 8.71
10.63 10.63• At the time of delivery, grease is inserted inside of the nut, with rust-preventive oil also applied.
Before and during use, apply lubricant where appropriate.

D-76

D-77

GW series (Accuracy grade C7) / GY series (Accuracy grade C10)

Standard rolled ball screws are available with KURODA’s recommended shaft end finish
types for each size.
Other than KURODA’s recommended shaft end finish types described below, additional machining
including keyways, tapped holes, and D-cut processing are also available if requested. Pleasecontact KURODA with your orders. Model examples for finished shaft ends are described below.
Model example: Unfinished shaft ends (See left figure) → Finished shaft ends
GY2525ES-HULR-2500A → GY2525ES-HULR-2490X2372-CAY

4

ø7→Thread length→Overall screw shaft length

D6

-0

5

C0.3

C

C

1

0.

(Model: GY/W-C20)

ø15-0.018* Collar
C0.5

5

-0

ø20-0.021

A

Fixed end

022-0.35-047

Supported end

M6×1(Oil hole)ø20-0.021

0.050 or less 0.120 or less---Tube method
Lip seal
Alvania Grease S2
Nut alone Screw shaft, nut

ø25

C10 / Y

0

0.

PC

-0

C7 / Y● Shaft end finish type4-6.6 drilled hole
30°
°
0
3

25 - 25
2.5 turns 2 circuits /Right-hand
3.9688
21.5
GW
GY
16800
45400

C

Shaft diameter (mm) - Lead (mm)Number of circuits /Thread direction
Ball diameter (mm)Root diameter (mm)SeriesBasic dynamic load rating C (N)Basic static load rating C0 (N)Accuracy grade /Axial clearance symbol
Axial clearance (mm)Preload torque (N·cm)
Recirculation system
Wiper
LubricantPhosphate coating

ø19-0.21● Ball screw specifications

Screw shaft diameter ø25, Lead 25 (Round nut)

R0.3 or less

12
A

B

110
Lt

Screw shaft
diameter ø25

15.35

12 5

+0.1
0

18

R0.3
or less
73

M20×1

16
27

100

Applicable fixed end support unit
BUK-20, BUK-20F (Square type)
BUM-20, BUM-20F (Round type)● Optional specifications

6

L1 (Hardened portion)

Model No.
Model No.
(Unfinished(Unfinishedshaft ends)
shaft ends)
GW2525ES-HULR-1000A
GW2525ES-HULR-1000A
GW2525ES-HULR-2000A
GW2525ES-HULR-2000A
GW2525ES-HULR-2500A
GW2525ES-HULR-2500A
GY2525ES-HULR-1000A
GY2525ES-HULR-1000A
GY2525ES-HULR-2000A
GY2525ES-HULR-2000A
GY2525ES-HULR-2500A
GY2525ES-HULR-2500A

20

Applicable supported end support unit
BUK-20S (Square type)
BUM-20S (Round type)

B

B

+0.14

1.35 0• Ball screw lubricating unit LUBSEAL can be equipped.
Model example: GY2525ES-HUSR-2490X2372-CAY→Wiper material S: LUBSEAL• Anticorrosive black coating (coating thickness: 1 to 2 μm) is available.

L1

L1

Lt

890
1890
2390
890
1890
2390

890
1890
2390
890
1890
2390

1000
2000
2500
1000
2000
2500

Maximum
Maximum
stroke stroke(L1 - nut(L1length)- nut length)
1000
794
794
2000
1794 1794
2500
2294 2294
1000
794
794
2000
1794 1794
2500
2294 2294
Lt

Lead accuracy
Lead accuracy
Cumulative
Cumulative
lead error
lead error
0.05/300
0.05/300

0.21/300
0.21/300

Accuracy
Accuracyof each ofparteach part
X
X
Z
Z
0.080 0.080
0.025 0.025
0.200 0.200
0.260 0.260
0.160 0.160----0.400 0.400
0.640 0.640

Screw shaft
diameter ø25

X

White paint iscoated(ø21.5)

Z

84

(ø25)

-0.1

ø47-0.5

96

Mass Mass(kg)(kg)
4.87 4.87
8.71 8.71
10.63 10.63
4.87 4.87
8.71 8.71
10.63 10.63• At the time of delivery, grease is inserted inside of the nut, with rust-preventive oil also applied.
Before and during use, apply lubricant where appropriate.

D-78

D-79

GY series (Accuracy grade C10)

● Shaft end finish type

Standard rolled ball screws are available with KURODA’s recommended shaft end finish
types for each size.
Other than KURODA’s recommended shaft end finish types described below, additional machining
including keyways, tapped holes, and D-cut processing are also available if requested. Pleasecontact KURODA with your orders. Model examples for finished shaft ends are described below.
Model example: Unfinished shaft ends (See left figure) → Finished shaft ends
GY2806ES-HUBR-2500A → GY2806ES-HUBR-2450X2332-CAY

4-6.6 drilled hole

30°
0

ø8

→Thread length→Overall screw shaft length

D6

-0

5

C0.3

C

1

0.

-0

(Model: GY/W-C20)

ø15-0.018* Collar
C0.5

-0

A

Fixed end

ø20-0.021

M6×1(Oil hole)024-0.35

ø25

50

Supported end-00.100 or less---Tube method
Brush wiper
Alvania Grease S2
Screw shaft, nut

5

ø19-0.21

C10 / Y

C

PC

5

30°

0.

28 - 6
2.5 turns 2 circuits /Right-hand
3.175
25.6
GY
12100
42300

C

Shaft diameter (mm) - Lead (mm)Number of circuits /Thread direction
Ball diameter (mm)Root diameter (mm)SeriesBasic dynamic load rating C (N)Basic static load rating C0 (N)Accuracy grade /Axial clearance symbol
Axial clearance (mm)Preload torque (N·cm)
Recirculation system
Wiper
LubricantPhosphate coating

ø20-0.021● Ball screw specifications

Screw shaft diameter ø28, Lead 6 (Round nut)

R0.3 or less

12
A

B

White paint iscoated(ø25.6)

Z

53

(ø28)

-0.1

ø50-0.5

65
+0.14

20

1.35+0
15.35

+0.1
+0

B

B

73

M20×1

16
27

100

Applicable supported end support unit
BUK-20S (Square type)
BUM-20S (Round type)

X

12 5

18

R0.3
or less

Applicable fixed end support unit
BUK-20, BUK-20F (Square type)
BUM-20, BUM-20F (Round type)● Optional specifications• Anticorrosive black coating (coating thickness: 1 to 2 μm) is available.

6

L1 (Hardened portion)

150

Model No.
Model No.
(Unfinished(Unfinishedshaft ends)
shaft ends)
GY2806ES-HUBR-1000A
GY2806ES-HUBR-1000A
GY2806ES-HUBR-2000A
GY2806ES-HUBR-2000A
GY2806ES-HUBR-2500A
GY2806ES-HUBR-2500A

L1

L1

Lt

850
1850
2350

850
1850
2350

1000
2000
2500

Maximum
Maximum
stroke stroke(L1 - nut(L1length)- nut length)
1000
785
785
2000
1785 1785
2500
2285 2285
Lt

Lead accuracy
Lead accuracy
Cumulative
Cumulative
lead error
lead error
0.21/300
0.21/300

Accuracy
Accuracyof each ofparteach part
X
X
Z
Z
0.120 0.120----0.240 0.240
0.640 0.640

Mass Mass(kg)(kg)
5.63 5.63
10.45 10.45
12.86 12.86

Screw shaft
diameter ø28

Screw shaft
diameter ø28

Lt• At the time of delivery, grease is inserted inside of the nut, with rust-preventive oil also applied.
Before and during use, apply lubricant where appropriate.

D-80

D-81

03

ø1

→Thread length→Overall screw shaft length

D8

Fixed end-0

* Collar

1

C0.5

-0

C

(Model: GY/W-C25)

C0.5

-0

-0

A

ø23.9-0.21

67

M6×1
(Oil hole)027-0.35

ø25-0.021

Supported end

0.200 or less---Tube method
Brush wiper
Alvania Grease S2
Screw shaft, nut

ø20-0.021

5

ø32

C10 / Y

1

PC

R0.3 or less

15
A

B

White paint iscoated(ø27.2)

Z

77

(ø32)

-0.1

92
+0.14

16.35

+0.1
+0

BUK-25S (Square type)

X

B

14
5

20

Applicable supported end support unit

B25

1.35+0R0.3
or less87

M25×1.5

20
33

120

Applicable fixed end support unit
BUK-25, BUK-25F (Square type)
BUM-25, BUM-25F (Round type)● Optional specifications• Anticorrosive black coating (coating thickness: 1 to 2 μm) is available.

10

L1 (Hardened portion)

150
Lt

Model No.
Model No.
(Unfinished(Unfinishedshaft ends)
shaft ends)
GY3210ES-HUBR-1000A
GY3210ES-HUBR-1000A
GY3210ES-HUBR-2000A
GY3210ES-HUBR-2000A
GY3210ES-HUBR-3000A
GY3210ES-HUBR-3000A

L1

L1

Lt

850
1850
2850

850
1850
2850

1000
2000
3000

Maximum
Maximum
stroke stroke(L1 - nut(L1length)- nut length)
1000
758
758
2000
1758 1758
3000
2758 2758
Lt

Lead accuracy
Lead accuracy
Cumulative
Cumulative
lead error
lead error
0.21/300
0.21/300

Accuracy
Accuracyof each ofparteach part
X
X
Z
Z
0.120 0.120----0.240 0.240
0.640 0.640

Mass Mass(kg)(kg)
8.44 8.44
14.73 14.73
21.03 21.03• At the time of delivery, grease is inserted inside of the nut, with rust-preventive oil also applied.
Before and during use, apply lubricant where appropriate.

D-82

D-83

Screw shaft
diameter ø32

Standard rolled ball screws are available with KURODA’s recommended shaft end finish
types for each size.
Other than KURODA’s recommended shaft end finish types described below, additional machining
including keyways, tapped holes, and D-cut processing are also available if requested. Pleasecontact KURODA with your orders. Model examples for finished shaft ends are described below.
Model example: Unfinished shaft ends (See left figure) → Finished shaft ends
GY3210ES-HUBR-3000A → GY3210ES-HUBR-2970X2830-CAY

C30°● Shaft end finish type4-9 drilled hole30°

1

32 - 10
2.5 turns 2 circuits /Right-hand
6.35
27.2
GY
32800
86700

C

Shaft diameter (mm) - Lead (mm)Number of circuits /Thread direction
Ball diameter (mm)Root diameter (mm)SeriesBasic dynamic load rating C (N)Basic static load rating C0 (N)Accuracy grade /Axial clearance symbol
Axial clearance (mm)Preload torque (N·cm)
Recirculation system
Wiper
LubricantPhosphate coating

Screw shaft diameter ø32, Lead 10 (Round nut)

ø25-0.021● Ball screw specifications

ø67-0.5

Screw shaft
diameter ø32

GY series (Accuracy grade C10)

(ø32)

60

B

White paint iscoated(ø27.2)

R0.3 or less

A

18

+0.14

16.35

+0.1
+0

20

BUK-25S (Square type)A

14
5

Applicable supported end support unit
B25

1.35+0R0.3
or less
87-0

ø20-0.021

1

1

C

C

C0.5

1

Z

60

(Model: GY/W-C25)-0* CollarC0.5

96
4-M10 depth 16

Fixed end

ø25-0.021

A027-0.35-0

ø23.9-0.21

-0

W A

38
or less

Supported end

ø25-0.021

29±0.0545
or less0.200 or less---Tube method
Brush wiper
Alvania Grease S2
Screw shaft, nut

43±0.05

C10 / Y

→Thread length→Overall screw shaft length

ø32

11

M6×1
(Oil hole)

17Standard rolled ball screws are available with KURODA’s recommended shaft end finish
types for each size.
Other than KURODA’s recommended shaft end finish types described below, additional machining
including keyways, tapped holes, and D-cut processing are also available if requested. Pleasecontact KURODA with your orders. Model examples for finished shaft ends are described below.
Model example: Unfinished shaft ends (See left figure) → Finished shaft ends
GY3210ES-NKBR-3000A → GY3210ES-NKBR-2970X2830-CAY

M25×1.5

20
33

120

Applicable fixed end support unit
BUK-25, BUK-25F (Square type)
BUM-25, BUM-25F (Round type)● Optional specifications

L1 (Hardened portion)

150• Anticorrosive black coating (coating thickness: 1 to 2 μm) is available.

Lt
Model No.
Model No.
(Unfinished(Unfinishedshaft ends)
shaft ends)
GY3210ES-NKBR-1000A
GY3210ES-NKBR-1000A
GY3210ES-NKBR-2000A
GY3210ES-NKBR-2000A
GY3210ES-NKBR-3000A
GY3210ES-NKBR-3000A

L1

L1

Lt

850
1850
2850

850
1850
2850

1000
2000
3000

Maximum
Maximum
stroke stroke(L1 - nut(L1length)- nut length)
1000
754
754
2000
1754 1754
3000
2754 2754
Lt

Lead accuracy
Lead accuracy
Cumulative
Cumulative
lead error
lead error
0.21/300
0.21/300

Accuracy
Accuracyof each ofparteach part
X
X
Z
Z
0.120 0.120
0.240 0.240----0.640 0.640

Mass Mass(kg)(kg)
9.79 9.79
16.08 16.08
22.38 22.38• At the time of delivery, grease is inserted inside of the nut, with rust-preventive oil also applied.
Before and during use, apply lubricant where appropriate.

D-84

D-85

Screw shaft
diameter ø32● Shaft end finish type

32 - 10
2.5 turns 2 circuits /Right-hand
6.35
27.2
GY
32800
86700

C

Shaft diameter (mm) - Lead (mm)Number of circuits /Thread direction
Ball diameter (mm)Root diameter (mm)SeriesBasic dynamic load rating C (N)Basic static load rating C0 (N)Accuracy grade /Axial clearance symbol
Axial clearance (mm)Preload torque (N·cm)
Recirculation system
Wiper
LubricantPhosphate coating

Screw shaft diameter ø32, Lead 10 (Square nut)86

● Ball screw specifications

13

Screw shaft
diameter ø32

GY series (Accuracy grade C10)

Standard rolled ball screws are available with KURODA’s recommended shaft end finish
types for each size.
Other than KURODA’s recommended shaft end finish types described below, additional machining
including keyways, tapped holes, and D-cut processing are also available if requested. Pleasecontact KURODA with your orders. Model examples for finished shaft ends are described below.
Model example: Unfinished shaft ends (See left figure) → Finished shaft ends
GY3232BS-HUBR-3000A → GY3232BS-HUBR-2970X2830-CAY

30°
2

ø9

→Thread length→Overall screw shaft length

D7

A

B

White paint iscoated

R0.3 or less(ø27.8)

15
(ø32)

-0.1

+0.14

1.35+0
16.35

+0.1
+0

20

BUK-25S (Square type)

B

B

14
5

Applicable supported end support unit

X

25

R0.3
or less
87-0

ø20-0.021

1

C

C0.5

1

Z

(Model: GY/W-C25)-0-0* Collar
C0.5

86
71

Fixed end

ø25-0.021

A027-0.35

ø32

58

Supported end

M6×1(Oil hole)-00.150 or less---Tube method
Brush wiper
Alvania Grease S2
Screw shaft, nut

4

ø23.9-0.21

C10 / Y

C

PC

1

30°

M25×1.5

20
33

120

Applicable fixed end support unit
BUK-25, BUK-25F (Square type)
BUM-25, BUM-25F (Round type)● Optional specifications

7.5• Anticorrosive black coating (coating thickness: 1 to 2 μm) is available.

L1 (Hardened portion)

150
Lt

Model No.
Model No.
(Unfinished(Unfinishedshaft ends)
shaft ends)
GY3232BS-HUBR-1000A
GY3232BS-HUBR-1000A
GY3232BS-HUBR-2000A
GY3232BS-HUBR-2000A
GY3232BS-HUBR-3000A
GY3232BS-HUBR-3000A

L1

L1

Lt

850
1850
2850

850
1850
2850

1000
2000
3000

Maximum
Maximum
stroke stroke(L1 - nut(L1length)- nut length)
1000
764
764
2000
1764 1764
3000
2764 2764
Lt

Lead accuracy
Lead accuracy
Cumulative
Cumulative
lead error
lead error
0.21/300
0.21/300

Accuracy
Accuracyof each ofparteach part
X
X
Z
Z
0.120 0.120----0.240 0.240
0.640 0.640

Mass Mass(kg)(kg)
7.72 7.72
14.01 14.01
20.31 20.31• At the time of delivery, grease is inserted inside of the nut, with rust-preventive oil also applied.
Before and during use, apply lubricant where appropriate.

D-86

D-87

Screw shaft
diameter ø32● Shaft end finish type4-9 drilled hole

32 - 32
1.5 turns 2 circuits /Right-hand
4.7625
27.8
GY
14600
38900

C

Shaft diameter (mm) - Lead (mm)Number of circuits /Thread direction
Ball diameter (mm)Root diameter (mm)SeriesBasic dynamic load rating C (N)Basic static load rating C0 (N)Accuracy grade /Axial clearance symbol
Axial clearance (mm)Preload torque (N·cm)
Recirculation system
Wiper
LubricantPhosphate coating

Screw shaft diameter ø32, Lead 32 (Round nut)

ø25-0.021● Ball screw specifications

ø58-0.5

Screw shaft
diameter ø32

GY series (Accuracy grade C10)

GY series (Accuracy grade C10)

Standard rolled ball screws are available with KURODA’s recommended shaft end finish
types for each size.
Other than KURODA’s recommended shaft end finish types described below, additional machining
including keyways, tapped holes, and D-cut processing are also available if requested. Pleasecontact KURODA with your orders. Model examples for finished shaft ends are described below.
Model example: Unfinished shaft ends (See left figure) → Finished shaft ends
GY3610ES-HUBR-3000A → GY3610ES-HUBR-2970X2830-CAY

30°
10
ø1

PC

→Thread length→Overall screw shaft length

D9B

White paint iscoated(ø31.1)

A

B

B

22

14
5

-0

25

C

C

1

5

17.75

+0.1
+0

ø25-0.021

ø30-0.021

-0

1.75

+0.14
+0

Applicable supported end support unit
----

X

R0.5
or less

R0.5 or less

17
(ø36)

-0.1

Z

0.

1

93
76

C0.5

C

-0

A

Fixed end

030-0.35-070

Supported end

M6×1(Oil hole)ø28.6-0.21

0.200 or less---Tube method
Brush wiper
Alvania Grease S2
Screw shaft, nut0ø30-0.021

C10 / Y130°

M30×1.5

89

61
150

Applicable fixed end support unit
BUT-30 (Round type)● Optional specifications• Anticorrosive black coating (coating thickness: 1 to 2 μm) is available.

10

L1 (Hardened portion)

200
Lt

Model No.
Model No.
(Unfinished(Unfinishedshaft ends)
shaft ends)
GY3610ES-HUBR-1000A
GY3610ES-HUBR-1000A
GY3610ES-HUBR-2000A
GY3610ES-HUBR-2000A
GY3610ES-HUBR-3000A
GY3610ES-HUBR-3000A

L1

L1

Lt

800
1800
2800

800
1800
2800

1000
2000
3000

Maximum
Maximum
stroke stroke(L1 - nut(L1length)- nut length)
1000
707
707
2000
1707 1707
3000
2707 2707
Lt

Lead accuracy
Lead accuracy
Cumulative
Cumulative
lead error
lead error
0.21/300
0.21/300

Accuracy
Accuracyof each ofparteach part
X
X
Z
Z
0.120 0.120
0.240 0.240----0.640 0.640

Mass
(kg)
10.28
18.25
26.22

Mass
(kg)
10.28
18.25
26.22

• At the time of delivery, grease is inserted inside of the nut, with rust-preventive oil also applied.
Before and during use, apply lubricant where appropriate.

D-88

D-89

Screw shaft
diameter ø36● Shaft end finish type4-11 drilled hole

36 - 10
2.5 turns 2 circuits /Right-hand
6.350
31.1
GY
35100
98200

C

Shaft diameter (mm) - Lead (mm)Number of circuits /Thread direction
Ball diameter (mm)Root diameter (mm)SeriesBasic dynamic load rating C (N)Basic static load rating C0 (N)Accuracy grade /Axial clearance symbol
Axial clearance (mm)Preload torque (N·cm)
Recirculation system
Wiper
LubricantPhosphate coating

ø70-0.5

Screw shaft
diameter ø36● Ball screw specifications

Screw shaft diameter ø36, Lead 10 (Round nut)

GY series (Accuracy grade C10)

Standard rolled ball screws are available with KURODA’s recommended shaft end finish
types for each size.
Other than KURODA’s recommended shaft end finish types described below, additional machining
including keyways, tapped holes, and D-cut processing are also available if requested. Pleasecontact KURODA with your orders. Model examples for finished shaft ends are described below.
Model example: Unfinished shaft ends (See left figure) → Finished shaft ends
GY3620ES-HUBR-3000A → GY3620ES-HUBR-2970X2830-CAY

10
ø1

PC

→Thread length→Overall screw shaft length

D9White paint iscoated(ø31.1)

A

B

B

B

17.75

+0.1
+0

22

-0

1

1

5

25

C

C

14

ø25-0.021-0R0.5
or less+0.14

1.75+0Applicable supported end support unit----X

ø30-0.021

5
0.

R0.5 or less

17
(ø36)

-0.1

Z

C0.5

1

89
72

Fixed end

030-0.35

C-0A

Supported end

M6×1(Oil hole)-070

ø28.6-0.21

0.200 or less---Tube method
Brush wiper
Alvania Grease S2
Screw shaft, nut

ø30-0.021

C10 / Y0

M30×1.5

89

61
150

Applicable fixed end support unit
BUT-30 (Round type)● Optional specifications• Anticorrosive black coating (coating thickness: 1 to 2 μm) is available.

10

L1 (Hardened portion)

200
Lt

Model No.
Model No.
(Unfinished(Unfinishedshaft ends)
shaft ends)
GY3620ES-HUBR-1000A
GY3620ES-HUBR-1000A
GY3620ES-HUBR-2000A
GY3620ES-HUBR-2000A
GY3620ES-HUBR-3000A
GY3620ES-HUBR-3000A

L1

L1

Lt

800
1800
2800

800
1800
2800

1000
2000
3000

Maximum
Maximum
stroke stroke(L1 - nut(L1length)- nut length)
1000
711
711
2000
1711 1711
3000
2711 2711
Lt

Lead accuracy
Lead accuracy
Cumulative
Cumulative
lead error
lead error
0.21/300
0.21/300

Accuracy
Accuracyof each ofparteach part
X
X
Z
Z
0.120 0.120
0.240 0.240----0.640 0.640

Mass
(kg)
10.20
18.17
29.14

Mass
(kg)
10.20
18.17
29.14

• At the time of delivery, grease is inserted inside of the nut, with rust-preventive oil also applied.
Before and during use, apply lubricant where appropriate.

D-90

D-91

Screw shaft
diameter ø36● Shaft end finish type4-11 drilled hole
30°
°
0
3

36 - 20
2.5 turns 2 circuits /Right-hand
6.350
31.1
GY
35100
98200

C

Shaft diameter (mm) - Lead (mm)Number of circuits /Thread direction
Ball diameter (mm)Root diameter (mm)SeriesBasic dynamic load rating C (N)Basic static load rating C0 (N)Accuracy grade /Axial clearance symbol
Axial clearance (mm)Preload torque (N·cm)
Recirculation system
Wiper
LubricantPhosphate coating

ø70-0.5

Screw shaft
diameter ø36● Ball screw specifications

Screw shaft diameter ø36, Lead 20 (Round nut)

GY series (Accuracy grade C10)

● Shaft end finish type

Standard rolled ball screws are available with KURODA’s recommended shaft end finish
types for each size.
Other than KURODA’s recommended shaft end finish types described below, additional machining
including keyways, tapped holes, and D-cut processing are also available if requested. Pleasecontact KURODA with your orders. Model examples for finished shaft ends are described below.
Model example: Unfinished shaft ends (See left figure) → Finished shaft ends
GY4010ES-HUBR-4000A → GY4010ES-HUBR-3930X3753-CAY

4-11 drilled hole

30°
16
ø1

B

White paint iscoated(ø35.1)

A

B

1.75

+0.1

18.75+0
22

-0

C
R0.5
or less

+0.14
+0

14

30

M35×1.594
5Applicable supported end support unit----X

ø30-0.021-03

R0.5 or less

17
(ø40)

-0.1

Z

0.

1

93
76

C0.5

C

-0

ø35-0.025

A

Fixed end

0

32-0.4-076

Supported end

M6×1(Oil hole)ø33-0.25

0.200 or less---Tube method
Brush wiper
Alvania Grease S2
Screw shaft, nut

ø35-0.025

C10 / Y

6

61
155

Applicable fixed end support unit
BUT-35 (Round type)● Optional specifications

B• Anticorrosive black coating (coating thickness: 1 to 2 μm) is available.

10

L1 (Hardened portion)

200
Lt

Model No.
Model No.
(Unfinished(Unfinishedshaft ends)
shaft ends)
GY4010ES-HUBR-2000A
GY4010ES-HUBR-2000A
GY4010ES-HUBR-3000A
GY4010ES-HUBR-3000A
GY4010ES-HUBR-4000A
GY4010ES-HUBR-4000A

L1

L1

Lt

1800
2800
3800

1800
2800
3800

2000
3000
4000

Maximum
Maximum
stroke stroke(L1 - nut(L1length)- nut length)
2000
1707 1707
3000
2707 2707
4000
3707 3707
Lt

Lead accuracy
Lead accuracy
Cumulative
Cumulative
lead error
lead error
0.21/300
0.21/300

Accuracy
Accuracyof each ofparteach part
X
X
Z
Z
0.240 0.240----0.400 0.400
0.640 0.640

Mass
(kg)
22.34
32.18
42.02

Mass
(kg)
22.34
32.18
42.02

• At the time of delivery, grease is inserted inside of the nut, with rust-preventive oil also applied.
Before and during use, apply lubricant where appropriate.

D-92

D-93

Screw shaft
diameter ø40→Thread length→Overall screw shaft length

D9

1

PC

C

30°

1

40 - 10
2.5 turns 2 circuits /Right-hand
6.350
35.1
GY
37100
105600C

Shaft diameter (mm) - Lead (mm)Number of circuits /Thread direction
Ball diameter (mm)Root diameter (mm)SeriesBasic dynamic load rating C (N)Basic static load rating C0 (N)Accuracy grade /Axial clearance symbol
Axial clearance (mm)Preload torque (N·cm)
Recirculation system
Wiper
LubricantPhosphate coating

ø76-0.5

Screw shaft
diameter ø40● Ball screw specifications

Screw shaft diameter ø40, Lead 10 (Round nut)

GY series (Accuracy grade C10)

● Shaft end finish type

Standard rolled ball screws are available with KURODA’s recommended shaft end finish
types for each size.
Other than KURODA’s recommended shaft end finish types described below, additional machining
including keyways, tapped holes, and D-cut processing are also available if requested. Pleasecontact KURODA with your orders. Model examples for finished shaft ends are described below.
Model example: Unfinished shaft ends (See left figure) → Finished shaft ends
GY4020ES-HUBR-4000A → GY4020ES-HUBR-3930X3753-CAY

4-11 drilled hole
30°
°
0
3
16
ø1

White paint iscoated(ø35.1)B

1.75+0+0.1

18.75+0
22

B

-0

1

C

14

30

M35×1.594
5Applicable supported end support unit
----

X

R0.5
or less+0.14

Aø30-0.021-03

R0.5 or less

17
(ø40)

-0.1

Z

0.

1

89
72

C0.5

C

-0

ø35-0.025

A

Fixed end

0

32-0.4-076

Supported end

M6×1(Oil hole)ø33-0.25

0.200 or less---Tube method
Brush wiper
Alvania Grease S2
Screw shaft, nut

ø35-0.025

C10 / Y

6

61
155

Applicable fixed end support unit
BUT-35 (Round type)● Optional specifications

B• Anticorrosive black coating (coating thickness: 1 to 2 μm) is available.

10

L1 (Hardened portion)

200
Lt

Model No.
Model No.
(Unfinished(Unfinishedshaft ends)
shaft ends)
GY4020ES-HUBR-2000A
GY4020ES-HUBR-2000A
GY4020ES-HUBR-3000A
GY4020ES-HUBR-3000A
GY4020ES-HUBR-4000A
GY4020ES-HUBR-4000A

L1

L1

Lt

1800
2800
3800

1800
2800
3800

2000
3000
4000

Maximum
Maximum
stroke stroke(L1 - nut(L1length)- nut length)
2000
1711 1711
3000
2711 2711
4000
3711 3711
Lt

Lead accuracy
Lead accuracy
Cumulative
Cumulative
lead error
lead error
0.21/300
0.21/300

Accuracy
Accuracyof each ofparteach part
X
X
Z
Z
0.240 0.240----0.400 0.400
0.640 0.640

Mass
(kg)
22.25
32.09
41.93

Mass
(kg)
22.25
32.09
41.93

• At the time of delivery, grease is inserted inside of the nut, with rust-preventive oil also applied.
Before and during use, apply lubricant where appropriate.

D-94

D-95

Screw shaft
diameter ø40→Thread length→Overall screw shaft length

D9

C

PC

1

40 - 20
2.5 turns 2 circuits /Right-hand
6.350
35.1
GY
37100
105600C

Shaft diameter (mm) - Lead (mm)Number of circuits /Thread direction
Ball diameter (mm)Root diameter (mm)SeriesBasic dynamic load rating C (N)Basic static load rating C0 (N)Accuracy grade /Axial clearance symbol
Axial clearance (mm)Preload torque (N·cm)
Recirculation system
Wiper
LubricantPhosphate coating

ø76-0.5

Screw shaft
diameter ø40● Ball screw specifications

Screw shaft diameter ø40, Lead 20 (Round nut)

GY series (Accuracy grade C10)

● Shaft end finish type4-11 drilled hole
30°
°
0
3
14
ø1

D9

-0

-0

1

C

1

0.

3

C0.5

C

-0

ø35-0.025

A

Fixed end

0

32-0.4

ø30-0.021

Supported end

ø35-0.025

M6×1(Oil hole)-073

ø33-0.25

0.200 or less---Tube method
Brush wiper
Alvania Grease S2
Screw shaft, nut→Thread length→Overall screw shaft length

3

C

PC

C10 / Y

17
A

B

White paint iscoated

R0.5 or less(ø35.1)

Z

86

(ø40)

-0.1

103

1.75

+0.1

18.75+0
22

B

B

14

30

M35×1.594
5Applicable supported end support unit
----

X

R0.5
or less

+0.14
+0

61
155

Applicable fixed end support unit
BUT-35 (Round type)● Optional specifications

8.5• Anticorrosive black coating (coating thickness: 1 to 2 μm) is available.

L1 (Hardened portion)

200
Lt

Model No.
Model No.
(Unfinished(Unfinishedshaft ends)
shaft ends)
GY4040BS-HUBR-2000A
GY4040BS-HUBR-2000A
GY4040BS-HUBR-3000A
GY4040BS-HUBR-3000A
GY4040BS-HUBR-4000A
GY4040BS-HUBR-4000A

L1

L1

Lt

1800
2800
3800

1800
2800
3800

2000
3000
4000

Maximum
Maximum
stroke stroke(L1 - nut(L1length)- nut length)
2000
1697 1697
3000
2697 2697
4000
3697 3697
Lt

Lead accuracy
Lead accuracy
Cumulative
Cumulative
lead error
lead error
0.21/300
0.21/300

Accuracy
Accuracyof each ofparteach part
X
X
Z
Z
0.240 0.240----0.400 0.400
0.640 0.640

Mass
(kg)
22.29
32.13
41.97

Mass
(kg)
22.29
32.13
41.97

• At the time of delivery, grease is inserted inside of the nut, with rust-preventive oil also applied.
Before and during use, apply lubricant where appropriate.

D-96

D-97

Screw shaft
diameter ø40

Standard rolled ball screws are available with KURODA’s recommended shaft end finish
types for each size.
Other than KURODA’s recommended shaft end finish types described below, additional machining
including keyways, tapped holes, and D-cut processing are also available if requested. Pleasecontact KURODA with your orders. Model examples for finished shaft ends are described below.
Model example: Unfinished shaft ends (See left figure) → Finished shaft ends
GY4040BS-HUBR-4000A → GY4040BS-HUBR-3930X3753-CAY

1

40 - 40
1.5 turns 2 circuits /Right-hand
6.350
35.1
GY
23900
66900

C

Shaft diameter (mm) - Lead (mm)Number of circuits /Thread direction
Ball diameter (mm)Root diameter (mm)SeriesBasic dynamic load rating C (N)Basic static load rating C0 (N)Accuracy grade /Axial clearance symbol
Axial clearance (mm)Preload torque (N·cm)
Recirculation system
Wiper
LubricantPhosphate coating

ø73-0.5

Screw shaft
diameter ø40● Ball screw specifications

Screw shaft diameter ø40, Lead 40 (Round nut)