Standard precision ball screws□ Model numbers of each series

Features● GP, GG, GE series: Various screw shaft diameters, leads, andaccuracy grades available for your selection• An optimal size can be selected from a variety of screw shaft diameters, leads, and accuracy
grades eliminating unnecessary compromise in product selection.

● FG, FE series: High rotational speed-1• Delivers higher rotational speed up to 5,000 min through our unique recirculation system.
• In consideration of the load rating, the products have higher specifications than previous
KURODA products.

● DP series: The industry’s smallest compact nut class• Utilizes a deflector recirculation system which realizes minimal nut dimensions.
• With leads from 1 mm, the DP series is suitable for machines and equipment that requires
fine pitch forwarding and precise positioning.

● HG series: Optimal for high-speed conveyance achieved bylarger leads• Larger leads enable a higher feed rate at a low rotational speed.
• With the adoption of multi-start thread, we have achieved a more compact nut with an
improved load rating.

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

ø6 to ø32 mm
1 to 60 mm
C3 grade: GP, DP
C5 grade: FG, GG, HG
C7 grade: FE, GE
Refer to each product specification table.
One shaft end finished (C3 grade: GP, DP)
Unfinished shaft ends
Standard product

SeriesShaft
diameter

Lead

Number Combinaof circuits tion

Flangetype

Ball recirWiper Thread
culationmaterial direction
systemOverallscrew Shaft end Thread
shaft
type
lengthlengthAccuracy Axial
grade clearance

Example FG
15
10
P
S
−
H
P
N
R
− 0900X
0840 −model
H
DN
DP 6 to 14 1 to 4 J
To be B, X To benumbers FG
shown
shown
10 to 25 5 to 25 P
HPNwith a A, X with aFE
4-digit
4-digitSee
S−
R− number
GG−
specifi- See
8 to 32 2 to 25 See
A, X number
See cations.
specifiGEin metric
in metric
specifispecifications.
units
units
GP
2 to 5
A cations.
B, X
cations.
8 to 20(mm)
HG
12 to 60 Q
Q
A, X (mm)• For more details, refer to the specifications and data for each size.

C5
C3
C5
C7
C5
C7
C3
C5

F
F, S
F
M
F
M
F, S
F, H

40

60

□ Screw shaft diameter and lead combinations
1
○
○

2

3

4

6
8
●○
●
10
●○
●
Screw 12●○○●shaft 14○
diam15●●eter(mm) 1620●
25
32●: GP, GG, GE series○: DP series (small lead)□: HG series (large lead)♦ : FG, FE series (high rotational speed)

5

10

●

●♦
●♦

●♦

●♦

12

Lead (mm)
15
16

20

25

30

32

□
●♦
●

□

●□♦

□

●
●
●♦
●

●♦
●♦
●

□
●□♦
●

□

□

□

●♦

□ Options available
SeriesAdditional shaftend machining

Surfacetreatment

Change ofgrease type

Change of nut
direction

LUBSEAL

GP, DP
See the notes
FG, GG, HG○○○○
below.
FE, GE• The GP and DP series have one shaft end finished.
• 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.

B-2

B-3

FG series (Accuracy grade C5) / FE series (Accuracy grade C7)

21.5

X

L1 (Hardened portion)

5-0
ø8-0.009-0.002

U E-F

C

C

0.

0.

2

5

E

C

-0.004

ø8-0.012

-0

0.9

+0.1
0

7.9

+0.1
0

10

ø13.7

-0

ø8.1

-0.1

ø23-0.2

Aø14-0.018

9.5 10 7.5

G

C0.2

R0.2 or less

F

G

U A

0

12-0.25

0.

U A

A

Fixed end
ø14-0.018

Supported end

ø10-0.008

M3×0.5(Oil hole)

24

-0

Plug

Screw shaft
diameter ø10→Thread length→Overall screw shaft lengthø7.6-0.06(2)

PCD 3227

A-0.007-0

ø10-0.015

4

ø4Standard precision 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
FG1010PS-HPNR-0455A → FG1010PS-HPNR-0455X0382-C5F

5

G

30°

30°

● Shaft end finish type

0.

Z

Y

4-4.5 drilled holeC

Shaft diameter (mm) - Lead (mm)10 - 10
Number of circuits /1.7 turns 1 circuit /Thread direction
Right-handBall diameter (mm)2.3812
Root diameter (mm)8.1
SeriesFG
FE
Basic dynamic load rating C (N)2600
Basic static load rating C0 (N)3800
Accuracy grade /C5 / S
C5 / F
C7 / M
Axial clearance symbol
0.005 or less 0.030 or less
Axial clearance (mm)0Preload torque (N·cm)
0.1 to 3.6 Up to 1.0---Spacer ball
None
Recirculation system
End deflector method
Wiper
None
LubricantAlvania Grease S2

ø23-0.020

Screw shaft
diameter ø10● Ball screw specifications

Screw shaft diameter ø10, Lead 10

V

20
8

55

R0.2
or less

10

30
8 10

E-F

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

A

5

M10×1
15

45
V

E-F

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
Screw
lengthshaft length
Lead accuracy
Model No.
Model No. Screw shaft
MaximumMaximum
stroke stroke Lead accuracy(Unfinished(Unfinishedshaft ends)
shaft ends)(L1 - nut length)(L1 - nut length)
L1
L1 Lt
Lt
±Ec
±Ec ecec e300
e300
FG1010PS-HPNR-0255A
FG1010PS-HPNR-0255A
192
192255
255 165
165 0.023 0.023
0.018 0.018
0.018 0.018
FG1010PS-HPNR-0455A
FG1010PS-HPNR-0455A
392
392455455 365
365 0.025 0.025
0.020 0.020
FE1010PS-HPNR-0255A
FE1010PS-HPNR-0255A
192
192255
255 165165
0.05/3000.05/300-------------FE1010PS-HPNR-0455A
FE1010PS-HPNR-0455A
392
392455455 365365• Product with axial clearance of 0.005 or less (F) shown may be partially preloaded.
• Preload torque is a value before applying grease.

B-28

Accuracy
Accuracyof each ofparteach part
PreloadPreload
torque (N·cm)
torque (N·cm)Mass Mass
(kg)
(kg)
Without
clearance
Without clearanceWith clearanceWith clearance
X Y
Y Z
Z U
U V
V
0.055 0.055
0.29 0.29
0.010 0.010
0.012 0.012
0.011 0.011
0.005 0.005
0.1 to 3.6
0.1 to 3.6
Up to 1.0
Up to 1.0
0.080 0.080
0.40 0.40
0.080 0.080
0.29 0.29
0.014 0.014
0.020 0.020-------------- ------------0.120 0.120
0.40 0.40
X• 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.
• For models with lead accuracy grade of C3 or higher and unfinished shaft ends, consult KURODA.

B-29

FG series (Accuracy grade C5) / FE series (Accuracy grade C7)

6→Thread length→Overall screw shaft length

23

G

X G
L1 (Hardened portion)-0.002

-0

55

Lt

-0

Screw shaft
diameter ø12

0.
C

15
45
V

V E-F

M10×1

10

30

ø8-0.009

5

5
0.

R0.2
or less

5 10

10

ø11.7

20
5

5

+0.1
0

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

A

E
C

C
+0.1

0.9 0
7.9

ø12-0.018

ø9.5-0.007

-0.1

A

U E-F

2

C0.3

F

18.5 10 9.5

U A

0.

-0.004

ø8-0.012A0

10-0.2-0

U A

Fixed end
ø12-0.018

Supported end

ø10-0.008

M3×0.5(Oil hole)

27

-0

Plug

ø7.6-0.06

(1.3)

PCD 3

38
ø27-0.2-07

ø4Standard precision 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
FG1210PS-HPNR-0605A → FG1210PS-HPNR-0605X0535-C5F

R0.2 or lessA
ø27-0.020

Gø12-0.018

Z

30°

30°

● Shaft end finish type5Y

4-4.5 drilled hole0.

Shaft diameter (mm) - Lead (mm)12 - 10
Number of circuits /2.7 turns 1 circuit /Thread direction
Right-handBall diameter (mm)3.175
Root diameter (mm)9.5
SeriesFG
FE
Basic dynamic load rating C (N)6700
Basic static load rating C0 (N)10700
Accuracy grade /C5 / S
C5 / F
C7 / M
Axial clearance symbol
0.005 or less 0.030 or less
Axial clearance (mm)0Preload torque (N·cm)
1.5 to 9.3 Up to 2.0---Spacer ball
None
Recirculation system
End deflector method
Wiper
None
LubricantAlvania Grease S2

C

Screw shaft
diameter ø12● Ball screw specifications

Screw shaft diameter ø12, Lead 10

E-F

Applicable fixed end support unit
BUK-10, BUK-10F (Square type)
BUM-10, BUM-10F (Round type)● Optional specifications• Ball screw lubricating unit LUBSEAL can be equipped. The overall nut length will be 11 mm longer.
Model example: FG1210PS-HPSR-0605X0535-C5F→Wiper material S: LUBSEAL• Anticorrosive black coating (coating thickness: 1 to 2 μm) is available.
Screw
lengthshaft length
Lead accuracy
Model No.
Model No. Screw shaft
MaximumMaximum
stroke stroke Lead accuracy(Unfinished(Unfinishedshaft ends)
shaft ends)(L1 - nut length)(L1 - nut length)
L1
L1 Lt
Lt
±Ec
±Ec ecec e300
e300
FG1210PS-HPNR-0455A
FG1210PS-HPNR-0455A
395
395455455 357
357 0.025 0.025
0.020 0.020
0.018 0.018
FG1210PS-HPNR-0605A
FG1210PS-HPNR-0605A
545
545605605 507507 0.030 0.030
0.023 0.023
FE1210PS-HPNR-0455A
FE1210PS-HPNR-0455A
395
395455455 357357
0.05/3000.05/300-------------FE1210PS-HPNR-0605A
FE1210PS-HPNR-0605A
545
545605605 507507• Product with axial clearance of 0.005 or less (F) shown may be partially preloaded.
• Preload torque is a value before applying grease.

B-46

Accuracy
Accuracyof each ofparteach part
PreloadPreload
torque (N·cm)
torque (N·cm)Mass Mass
(kg)
(kg)
Without
clearance
Without clearanceWith clearanceWith clearance
X Y
Y Z
Z U
U V
V
0.080 0.080
0.53 0.53
0.010 0.010
0.012 0.012
0.011 0.011
0.005 0.005
1.5 to 9.3
1.5 to 9.3
Up to 2.0
Up to 2.0
0.090 0.090
0.65 0.65
0.120 0.120
0.53 0.53
0.014 0.014
0.020 0.020-------------- ------------0.150 0.150
0.65 0.65
X• 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.
• For models with lead accuracy grade of C3 or higher and unfinished shaft ends, consult KURODA.

B-47

FG series (Accuracy grade C5) / FE series (Accuracy grade C7)

7
ø4

6

→Thread length→Overall screw shaft length

23

G

X G
L1 (Hardened portion)

20
5

55

Lt

-0

V E-F

Screw shaft
diameter ø12

10

30
5 10

C

C

R0.2
or less

0.

0.

5

5

2

E

ø8-0.009

U E-F

0.
C
+0.1
0

M10×1
15

45
V

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

A

5

10

ø11.7

ø9.5

+0.1

0.9 0
7.9

0

A

ø12-0.018

-0.1

10 10

ø27-0.2-0.00728

C0.3

R0.2 or less

F

U A

-0

-0.004

ø8-0.012A0

10-0.2-0.002U A

Fixed end
ø12-0.018

Supported end

ø10-0.008

M3×0.5(Oil hole)

27

-0

Plug

ø7.6-0.06

(1.3)

PCD 3

Standard precision 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
FG1220PS-HPNR-0605A → FG1220PS-HPNR-0605X0535-C5F

48
ø27-0.020-0ø12-0.018

Z G

A

30°

30°

● Shaft end finish type5Y

4-4.5 drilled hole0.

Shaft diameter (mm) - Lead (mm)12 - 20
Number of circuits /1.7 turns 1 circuit /Thread direction
Right-handBall diameter (mm)3.175
Root diameter (mm)9.5
SeriesFG
FE
Basic dynamic load rating C (N)4300
Basic static load rating C0 (N)6700
Accuracy grade /C5 / S
C5 / F
C7 / M
Axial clearance symbol
0.005 or less 0.030 or less
Axial clearance (mm)0Preload torque (N·cm)
1.2 to 8.4 Up to 2.5---Spacer ball
None
Recirculation system
End deflector method
Wiper
None
LubricantAlvania Grease S2

C

Screw shaft
diameter ø12● Ball screw specifications

Screw shaft diameter ø12, Lead 20

E-F

Applicable fixed end support unit
BUK-10, BUK-10F (Square type)
BUM-10, BUM-10F (Round type)● Optional specifications• Ball screw lubricating unit LUBSEAL can be equipped. The overall nut length will be 11 mm longer.
Model example: FG1220PS-HPSR-0605X0535-C5F→Wiper material S: LUBSEAL• Anticorrosive black coating (coating thickness: 1 to 2 μm) is available.
Screw
lengthshaft length
Lead accuracy
Model No.
Model No. Screw shaft
MaximumMaximum
stroke stroke Lead accuracy(Unfinished(Unfinishedshaft ends)
shaft ends)(L1 - nut length)(L1 - nut length)
ec e300
e300
L1
L1 Lt
Lt
±Ec
±Ec ec
FG1220PS-HPNR-0405A
FG1220PS-HPNR-0405A
345
345405405 297
297 0.025 0.025
0.020 0.020
0.018 0.018
FG1220PS-HPNR-0605A
FG1220PS-HPNR-0605A
545
545605605 497497 0.030 0.030
0.023 0.023
FE1220PS-HPNR-0405A
FE1220PS-HPNR-0405A
345
345405405 297297
0.05/3000.05/300-------------FE1220PS-HPNR-0605A
FE1220PS-HPNR-0605A
545
545605605 497497• Product with axial clearance of 0.005 or less (F) shown may be partially preloaded.
• Preload torque is a value before applying grease.

B-50

Accuracy
Accuracyof each ofparteach part
PreloadPreload
torque (N·cm)
torque (N·cm)Mass Mass
(kg)
(kg)
Without
clearance
Without clearanceWith clearanceWith clearance
X Y
Y Z
Z U
U V
V
0.080 0.080
0.54 0.54
0.010 0.010
0.012 0.012
0.011 0.011
0.005 0.005
1.2 to 8.4
1.2 to 8.4
Up to 2.5
Up to 2.5
0.090 0.090
0.71 0.71
0.120 0.120
0.54 0.54
0.018 0.018
0.030 0.030-------------- ------------0.150 0.150
0.71 0.71
X• 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.
• For models with lead accuracy grade of C3 or higher and unfinished shaft ends, consult KURODA.

B-51

FG series (Accuracy grade C5) / FE series (Accuracy grade C7)→Thread length→Overall screw shaft length

2

25
5

55

Lt

Screw
lengthshaft length
Lead accuracy
Model No.
Model No. Screw shaft
MaximumMaximum
stroke stroke Lead accuracy(Unfinished(Unfinishedshaft ends)
shaft ends)(L1 - nut length)(L1 - nut length)
ec e300
e300
L1
L1 Lt
Lt
±Ec
±Ec ec
FG1505PS-HPNR-0600A
FG1505PS-HPNR-0600A
540
540600600 515515 0.030 0.030
0.023 0.023
0.018 0.018
FG1505PS-HPNR-1100A
FG1505PS-HPNR-1100A
1040 1040
1100 1100 1015 1015 0.046 0.046
0.030 0.030
FE1505PS-HPNR-0600A
FE1505PS-HPNR-0600A
540
540600600 515515
0.05/3000.05/300-------------FE1505PS-HPNR-1100A
FE1505PS-HPNR-1100A
1040 1040
1100 1100 1015 1015
• Product with axial clearance of 0.005 or less (F) shown may be partially preloaded.
• Preload torque is a value before applying grease.

5 10

V E-F

ø14.5

-0

A

M12×1
15

45
V

Applicable supported end support unit
BUK-10S (Square type)
BUM-10S (Round type)ø10-0.009-0R0.3
or less
5
E 10
30

E-F

Applicable fixed end support unit
BUK-12, BUK-12F (Square type)
BUM-12, BUM-12F (Round type)● Optional specifications• Ball screw lubricating unit LUBSEAL can be equipped. The overall nut length will be 11 mm longer.
Model example: FG1505PS-HPSR-1100X1028-C5F→Wiper material S: LUBSEAL

Screw shaft
diameter ø15

L1 (Hardened portion)12

ø15-0.018

ø12.5

-0.1

-0.007

ø30-0.2

G-0.003

2
0.
C

1.15

+0.14
0
+0.1

A

U E-F

ø12-0.011-0-0R0.2 or less

F

7.75

X G

B-68

C0.5

9.15 0ø30-0.020-0ø15-0.018

Screw shaft
diameter ø15

9.5

U A

0

12-0.25

5

7.75

0.

Z G

A

Fixed end
ø15-0.018

A

25
Y

ø9.6-0.09

30-0.004

M6×1(Oil hole)ø10-0.012

Plug

Supported end

U A

5

41

20

26.5

(1.3)

PCD

0.

4

ø5

5

30°

Standard precision 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
FG1505PS-HPNR-1100A → FG1505PS-HPNR-1100X1028-C5FC30°● Shaft end finish type

0.

4-5.5 drilled holeC

Shaft diameter (mm) - Lead (mm)15 - 5
Number of circuits /2.7 turns 1 circuit /Thread direction
Right-handBall diameter (mm)3.175
Root diameter (mm)12.5
SeriesFG
FE
Basic dynamic load rating C (N)
7400
Basic static load rating C0 (N)12900
Accuracy grade /C5 / S
C5 / F
C7 / M
Axial clearance symbol
0.005 or less 0.030 or less
Axial clearance (mm)0Preload torque (N·cm)
1.0 to 11.0 Up to 2.0---Spacer ball
None
Recirculation system
End deflector method
Wiper
None
LubricantAlvania Grease S2

C● Ball screw specifications

Screw shaft diameter ø15, Lead 5• Anticorrosive black coating (coating thickness: 1 to 2 μm) is available.
Accuracy
Accuracyof each ofparteach part
PreloadPreload
torque (N·cm)
torque (N·cm)Mass Mass
(kg)
(kg)
Without
clearance
Without clearanceWith clearanceWith clearance
X Y
Y Z
Z U
U V
V
0.075 0.075
1.0 to 8.5
1.0 to 8.5
0.83 0.83
0.010 0.010
0.012 0.012
0.012 0.012
0.005 0.005
Up to 2.0
Up to 2.0
0.150 0.150
1.0 to 11.0
1.0 to 11.0
1.39 1.39
0.110 0.110
0.83 0.83
0.014 0.014
0.020 0.020-------------- ------------0.210 0.210
1.39 1.39
X• 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.
• For models with lead accuracy grade of C3 or higher and unfinished shaft ends, consult KURODA.

B-69

FG series (Accuracy grade C5) / FE series (Accuracy grade C7)→Thread length→Overall screw shaft length

2

5

25
5

12

ø14.5

-0

ø15-0.018

9.15 0

A
55

Lt

-0

R0.3
or less
E 10
30

5 10

V E-F

0.
C

M12×1
15

45
V

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

5

5

2
+0.14

1.15 0ø10-0.009-0.003

ø12-0.011-0-0R0.2 or less

E-F

Applicable fixed end support unit
BUK-12, BUK-12F (Square type)
BUM-12, BUM-12F (Round type)● Optional specifications• Ball screw lubricating unit LUBSEAL can be equipped. The overall nut length will be 11 mm longer.
Model example: FG1510PS-HPSR-1100X1028-C5F→Wiper material S: LUBSEAL• Anticorrosive black coating (coating thickness: 1 to 2 μm) is available.

Screw
lengthshaft length
Lead accuracy
Model No.
Model No. Screw shaft
MaximumMaximum
stroke stroke Lead accuracy(Unfinished(Unfinishedshaft ends)
shaft ends)(L1 - nut length)(L1 - nut length)
L1
L1 Lt
Lt
±Ec
±Ec ecec e300
e300
FG1510PS-HPNR-0600A
FG1510PS-HPNR-0600A
540
540600600 502502 0.030 0.030
0.023 0.023
0.018 0.018
FG1510PS-HPNR-0900A
FG1510PS-HPNR-0900A
840
840900900 802
802 0.040 0.040
0.027 0.027
FG1510PS-HPNR-1100A
FG1510PS-HPNR-1100A
1040 1040
1100 1100 1002 1002 0.046 0.046
0.030 0.030
FE1510PS-HPNR-0600A
FE1510PS-HPNR-0600A
540
540600600 502502
FE1510PS-HPNR-0900A
FE1510PS-HPNR-0900A
840
840900900 8028020.05/3000.05/300-------------FE1510PS-HPNR-1100A
FE1510PS-HPNR-1100A
1040 1040
1100 1100 1002 1002
• Product with axial clearance of 0.005 or less (F) shown may be partially preloaded.
• Preload torque is a value before applying grease.

B-74

Screw shaft
diameter ø15

G

L1 (Hardened portion)

C0.5

+0.1

A

U E-F

0.

A

U A

0

12-0.25

ø15-0.018

ø9.6-0.09-0.004

ø10-0.012

M6×1(Oil hole)30

Fixed end

C

(1.3)
26.5

Plug

ø12.5

-0.1

10 10

ø30-0.2-0.00718

Supported end

U A

0.

41

20

PCD

F

X G

Screw shaft
diameter ø15

4

ø5

38
ø30-0.020-0ø15-0.018

G30°Standard precision 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
FG1510PS-HPNR-1100A → FG1510PS-HPNR-1100X1028-C5F

5

Z

A

30°

● Shaft end finish type0.

Y

4-5.5 drilled holeC

Shaft diameter (mm) - Lead (mm)15 - 10
Number of circuits /2.7 turns 1 circuit /Thread direction
Right-handBall diameter (mm)3.175
Root diameter (mm)12.5
SeriesFG
FE
Basic dynamic load rating C (N)
7400
Basic static load rating C0 (N)12900
Accuracy grade /C5 / S
C5 / F
C7 / M
Axial clearance symbol
0.005 or less 0.030 or less
Axial clearance (mm)0Preload torque (N·cm)
1.0 to 12.0 Up to 3.0---Spacer ball
None
Recirculation system
End deflector method
Wiper
None
LubricantAlvania Grease S2

C● Ball screw specifications

Screw shaft diameter ø15, Lead 10

Accuracy
Accuracyof each ofparteach part
PreloadPreload
torque (N·cm)
torque (N·cm)Mass Mass
(kg)
(kg)
Without
clearance
Without clearanceWith clearanceWith clearance
X Y
Y Z
Z U
U V
V
0.075 0.075
1.5 to 12.0
1.5 to 12.0
0.96 0.96
0.120 0.120
1.5 to 12.0
1.5 to 12.0
0.010 0.010
0.012 0.012
0.012 0.012
0.005 0.005
Up to 3.0
Up to 3.01.34 1.34
0.150 0.150
1.0 to 12.0
1.0 to 12.0
1.59 1.59
0.110 0.110
0.96 0.96
0.014 0.014
0.020 0.020
0.170 0.170-------------- ------------- 1.34 1.34
0.210 0.210
1.59 1.59
X• 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.
• For models with lead accuracy grade of C3 or higher and unfinished shaft ends, consult KURODA.

B-75

FG series (Accuracy grade C5) / FE series (Accuracy grade C7)+0.14

1.15 0L1 (Hardened portion)

ø14.5

A

25
5

55

Lt

Screw
lengthshaft length
Lead accuracy
Model No.
Model No. Screw shaft
MaximumMaximum
stroke stroke Lead accuracy(Unfinished(Unfinishedshaft ends)
shaft ends)(L1 - nut length)(L1 - nut length)
L1
L1 Lt
Lt
±Ec
±Ec ecec e300
e300
FG1520PS-HPNR-0600A
FG1520PS-HPNR-0600A
540
540600600 492
492 0.030 0.030
0.023 0.023
0.018 0.018
FG1520PS-HPNR-0900A
FG1520PS-HPNR-0900A
840
840900900 792
792 0.040 0.040
0.027 0.027
FG1520PS-HPNR-1100A
FG1520PS-HPNR-1100A
1040 1040
1100 1100 992
992 0.046 0.046
0.030 0.030
FE1520PS-HPNR-0600A
FE1520PS-HPNR-0600A
540
540600600 492
492
FE1520PS-HPNR-0900A
FE1520PS-HPNR-0900A
840
840900900 7927920.05/3000.05/300-------------FE1520PS-HPNR-1100A
FE1520PS-HPNR-1100A
1040 1040
1100 1100 992
992• Product with axial clearance of 0.005 or less (F) shown may be partially preloaded.
• Preload torque is a value before applying grease.

V

-0

5

5

0.
C

5

R0.3
or less
E 10
30
15

5 10

45

+0.1
0

E-F

ø10-0.009-0.003

2

12

-0

ø12.5
G

G

2
C

R0.2 or less9.15

ø15-0.018

A

U E-F

ø12-0.011

-0

-0

C0.5

10.5
-0.1

10

U A

0

12-0.25

ø15-0.018

AF

ø30-0.2-0.007

ø30-0.020

27.5

ø9.6-0.09-0.004

M6×1(Oil hole)30

ø10-0.012

Plug

Fixed end

0.

(1.3)
26.5

Supported end

U A

48

A

X

B-80

→Thread length→Overall screw shaft length

0.

41

20

PCD

M12×1

V E-F

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• Ball screw lubricating unit LUBSEAL can be equipped. The overall nut length will be 11 mm longer.
Model example: FG1520PS-HPSR-1100X1028-C5F→Wiper material S: LUBSEAL• Anticorrosive black coating (coating thickness: 1 to 2 μm) is available.

Screw shaft
diameter ø15

Screw shaft
diameter ø15-0

ø15-0.018

G

4

ø5

Standard precision 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
FG1520PS-HPNR-1100A → FG1520PS-HPNR-1100X1028-C5F

5

Z

30°

30°

● Shaft end finish type0.

Y

4-5.5 drilled holeC

Shaft diameter (mm) - Lead (mm)15 - 20
Number of circuits /1.7 turns 1 circuit /Thread direction
Right-handBall diameter (mm)3.175
Root diameter (mm)12.5
SeriesFG
FE
Basic dynamic load rating C (N)4800
Basic static load rating C0 (N)8200
Accuracy grade /C5 / S
C5 / F
C7 / M
Axial clearance symbol
0.005 or less 0.030 or less
Axial clearance (mm)0Preload torque (N·cm)
1.0 to 11.0 Up to 3.0---Spacer ball
None
Recirculation system
End deflector method
Wiper
None
LubricantAlvania Grease S2

C● Ball screw specifications

Screw shaft diameter ø15, Lead 20

Accuracy
Accuracyof each ofparteach part
PreloadPreload
torque (N·cm)
torque (N·cm)Mass Mass
(kg)
(kg)
Without
clearance
Without clearanceWith clearanceWith clearance
X Y
Y Z
Z U
U V
V
0.075 0.075
1.04 1.04
0.120 0.120
0.010 0.010
0.012 0.012
0.012 0.012
0.005 0.005
1.0 to 11.0
1.0 to 11.0
Up to 3.0
Up to 3.01.44 1.44
0.150 0.150
1.71 1.71
0.110 0.110
1.04 1.04
0.014 0.014
0.020 0.020
0.170 0.170-------------- ------------- 1.44 1.44
0.210 0.210
1.71 1.71
X• 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.
• For models with lead accuracy grade of C3 or higher and unfinished shaft ends, consult KURODA.

B-81

FG series (Accuracy grade C5) / FE series (Accuracy grade C7)

L1 (Hardened portion)

25
8

75

Screw
lengthshaft length
Lead accuracy
Model No.
Model No. Screw shaft
MaximumMaximum
stroke stroke Lead accuracy(Unfinished(Unfinishedshaft ends)
shaft ends)(L1 - nut length)(L1 - nut length)
L1
L1 Lt
Lt
±Ec
±Ec ecec e300
e300
FG2010PS-HPNR-0605A
FG2010PS-HPNR-0605A
522
522605605 484
484 0.030 0.030
0.023 0.023
0.018 0.018
FG2010PS-HPNR-1005A
FG2010PS-HPNR-1005A
922
922
1005 1005 884
884 0.040 0.040
0.027 0.027
FG2010PS-HPNR-1505A
FG2010PS-HPNR-1505A
1422 1422
1505 1505 1384 1384 0.054 0.054
0.035 0.035
FE2010PS-HPNR-0605A
FE2010PS-HPNR-0605A
522
522605605 484484
FE2010PS-HPNR-1005A
FE2010PS-HPNR-1005A
922
922
1005 1005 884
8840.05/3000.05/300-------------FE2010PS-HPNR-1505A
FE2010PS-HPNR-1505A
1422 1422
1505 1505 1384 1384
• Product with axial clearance of 0.005 or less (F) shown may be partially preloaded.
• Preload torque is a value before applying grease.

+0.1
0

-0

R0.3
or less
E 15
40

8 15

V E-F

0.
C

M15×1
20

60
V

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

5

5
0.
C

C

5

ø12-0.011-0.0033

ø15-0.011

-0

-0

+0.14

1.15 0
12

ø19.5

-0

A

Lt

Screw shaft
diameter ø20

R0.3 or less

A

U E-F

E-F

Applicable fixed end support unit
BUK-15, BUK-15F (Square type)
BUM-15, BUM-15F (Round type)● Optional specifications• Ball screw lubricating unit LUBSEAL can be equipped. The overall nut length will be 11 mm longer.
Model example: FG2010PS-HPSR-1505X1410-C5F→Wiper material S: LUBSEAL• Anticorrosive black coating (coating thickness: 1 to 2 μm) is available.
Accuracy
Accuracyof each ofparteach part
PreloadPreload
torque (N·cm)
torque (N·cm)Mass Mass
(kg)
(kg)
Without
clearance
Without clearanceWith clearanceWith clearance
X Y
Y Z
Z U
U V
V
0.075 0.075
7.0 to 30.0
7.0 to 30.0
1.63 1.63
0.150 0.150
6.5 to 30.0
6.5 to 30.0
0.011 0.011
0.015 0.015
0.012 0.012
0.005 0.005
Up to 4.0
Up to 4.02.46 2.46
0.190 0.190
6.5 to 30.0
6.5 to 30.0
3.49 3.49
0.110 0.110
1.63 1.63
0.018 0.018
0.030 0.030
0.210 0.210-------------- ------------- 2.46 2.46
0.270 0.270
3.49 3.49
X

Screw shaft
diameter ø20

G

U

0

17-0.25

C0.5

10.15

ø20-0.021

A

Fixed end
ø20-0.021

M6×1(Oil hole)-0.00440Aø15-0.012

Plug

Supported end

Aø14.3-0.11

U

ø16

-0.1

15 12 11

X G

B-100

→Thread length→Overall screw shaft length

25

53

F

ø40-0.2-0.009PCD

38

ø40-0.025-0ø20-0.021

G

8

ø6

Standard precision 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
FG2010PS-HPNR-1505A → FG2010PS-HPNR-1505X1410-C5F

5

Z

A

30°

30°

● Shaft end finish type0.

Y

4-6.6 drilled hole,
11 spot facing,
depth 6.5

C

Shaft diameter (mm) - Lead (mm)20 - 10
Number of circuits /2.7 turns 1 circuit /Thread direction
Right-handBall diameter (mm)4.7625
Root diameter (mm)16.0
SeriesFG
FE
Basic dynamic load rating C (N)
18000
Basic static load rating C0 (N)33900
Accuracy grade /C5 / S
C5 / F
C7 / M
Axial clearance symbol
0.005 or less 0.030 or less
Axial clearance (mm)0Preload torque (N·cm)
6.5 to 30.0 Up to 4.0---Spacer ball
None
Recirculation system
End deflector method
Wiper
None
LubricantAlvania Grease S2

0.

● Ball screw specifications

Screw shaft diameter ø20, Lead 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.
• For models with lead accuracy grade of C3 or higher and unfinished shaft ends, consult KURODA.

B-101

FG series (Accuracy grade C5) / FE series (Accuracy grade C7)

X

G

G

L1 (Hardened portion)

+0.1
0

ø19.5
25

8

75

Lt

0.
C

M15×1
20

60
V

E-F

ø12-0.011-0R0.3
or less
E 15
40

8 15

5

5
0.
C

C

1.15

5

+0.14
0

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

A

U E-F

-0.003-0-0R0.3 or less

12
V

U A

0

17-0.25

C0.5

10.15

-0

ø15.9

A

ø20-0.021

-0.1

12 11

Fixed end
ø20-0.021

AF

ø40-0.2-0.00925

ø14.3-0.11

M6×1(Oil hole)A-0.00440Uø15-0.012

Plug

Supported end

ø15-0.011

25→Thread length→Overall screw shaft length48
ø40-0.025-0ø20-0.021

53

5

G

PCD

0.

Z

A

8

ø6

Standard precision 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
FG2020PS-HPNR-1505A → FG2020PS-HPNR-1505X1410-C5F

C

Y

30°

30°

● Shaft end finish type

3

4-6.6 drilled hole,
11 spot facing,
depth 6.5

Shaft diameter (mm) - Lead (mm)20 - 20
Number of circuits /1.7 turns 1 circuit /Thread direction
Right-handBall diameter (mm)4.7625
Root diameter (mm)15.9SeriesFG
FE
Basic dynamic load rating C (N)11600
Basic static load rating C0 (N)20600
Accuracy grade /C5 / S
C5 / F
C7 / M
Axial clearance symbol
0.005 or less 0.030 or less
Axial clearance (mm)0Preload torque (N·cm)
4.5 to 22.5 Up to 4.0---Spacer ball
None
Recirculation system
End deflector method
Wiper
None
LubricantAlvania Grease S2

0.

● Ball screw specifications

Screw shaft diameter ø20, Lead 20

E-F

Applicable fixed end support unit
BUK-15, BUK-15F (Square type)
BUM-15, BUM-15F (Round type)● Optional specifications• Ball screw lubricating unit LUBSEAL can be equipped. The overall nut length will be 11 mm longer.
Model example: FG2020PS-HPSR-1505X1410-C5F→Wiper material S: LUBSEAL• Anticorrosive black coating (coating thickness: 1 to 2 μm) is available.

• Product with axial clearance of 0.005 or less (F) shown may be partially preloaded.
• Preload torque is a value before applying grease.

B-104

Accuracy
Accuracyof each ofparteach part
PreloadPreload
torque (N·cm)
torque (N·cm)Mass Mass
(kg)
(kg)
Without
clearance
Without clearanceWith clearanceWith clearance
X Y
Y Z
Z U
U V
V
0.150 0.150
5.5 to 21.0
5.5 to 21.0
2.73 2.73
0.011 0.011
0.015 0.015
0.012 0.012
0.005 0.005
Up to 4.0
Up to 4.0
0.190 0.190
4.5 to 22.5
4.5 to 22.5
3.87 3.87
0.210 0.210
2.73 2.73
0.018 0.018
0.030 0.030-------------- ------------0.270 0.270
3.87 3.87
X

Screw shaft
diameter ø20

Screw shaft
diameter ø20

Screw
lengthshaft length
Lead accuracy
Model No.
Model No. Screw shaft
MaximumMaximum
stroke stroke Lead accuracy(Unfinished(Unfinishedshaft ends)
shaft ends)(L1 - nut length)(L1 - nut length)
ec e300
e300
L1
L1 Lt
Lt
±Ec
±Ec ec
FG2020PS-HPNR-1005A
FG2020PS-HPNR-1005A
922
922
1005 1005 874
874 0.040 0.040
0.027 0.027
0.018 0.018
FG2020PS-HPNR-1505A
FG2020PS-HPNR-1505A
1422 1422
1505 1505 1374 1374 0.054 0.054
0.035 0.035
FE2020PS-HPNR-1005A
FE2020PS-HPNR-1005A
922
922
1005 1005 874
874
0.05/3000.05/300-------------FE2020PS-HPNR-1505A
FE2020PS-HPNR-1505A
1422 1422
1505 1505 1374 1374

• 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.
• For models with lead accuracy grade of C3 or higher and unfinished shaft ends, consult KURODA.

B-105

G

G

L1 (Hardened portion)

ø24.5

ø22.5

25
100

Lt

Screw
lengthshaft length
Lead accuracy
Model No.
Model No. Screw shaft
MaximumMaximum
stroke stroke Lead accuracy(Unfinished(Unfinishedshaft ends)
shaft ends)(L1 - nut length)(L1 - nut length)
L1
L1 Lt
Lt
±Ec
±Ec ecec e300
e300
FG2505PS-HPNR-0600A
FG2505PS-HPNR-0600A
495
495600600 465465 0.027 0.027
0.020 0.020
0.018 0.018
FG2505PS-HPNR-1000A
FG2505PS-HPNR-1000A
895
895
1000 1000 865
865 0.040 0.040
0.027 0.027
FG2505PS-HPNR-1505A
FG2505PS-HPNR-1505A
1400 1400
1505 1505 1370 1370 0.054 0.054
0.035 0.035
FE2505PS-HPNR-0600A
FE2505PS-HPNR-0600A
495
495600600 465
465
FE2505PS-HPNR-1000A
FE2505PS-HPNR-1000A
895
895
1000 1000 865
8650.05/3000.05/300-------------FE2505PS-HPNR-1505A
FE2505PS-HPNR-1505A
1400 1400
1505 1505 1370 1370
• Product with axial clearance of 0.005 or less (F) shown may be partially preloaded.
• Preload torque is a value before applying grease.

V

2

10

+0.1
0

R0.3
or less E

E-F

16

Screw shaft
diameter ø25

-0

5
0.

M20×1
27

80
V

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

C

C

0.

5

U E-F

53
5 20

A

ø15-0.011

U-0.0033
0.
+0.14

1.35 0
15.35

A
5

-0

R0.3 or less

18

-0

A

ø25-0.021-0.1-0.00910 12 8

C0.5

C

A

Fixed end

022-0.35
ø20-0.011-0.004

M6×1(Oil hole)ø20-0.013

40

Supported endAø25-0.021

25
Plug

U

30

X

B-116

→Thread length→Overall screw shaft lengthFø40-0.2-0

ø25-0.021

G

3

PCD 5

1

Z

A

8

ø6

Standard precision 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
FG2505PS-HPNR-1505A → FG2505PS-HPNR-1505X1382-C5F

C

Y

30°

30°

● Shaft end finish type

-0

4-6.6 drilled hole,
11 spot facing,
depth 6.5

Shaft diameter (mm) - Lead (mm)25 - 5
Number of circuits /3.7 turns 1 circuit /Thread direction
Right-handBall diameter (mm)3.175
Root diameter (mm)22.5
SeriesFG
FE
Basic dynamic load rating C (N)
13100
Basic static load rating C0 (N)31800
Accuracy grade /C5 / S
C5 / F
C7 / M
Axial clearance symbol
0.005 or less 0.030 or less
Axial clearance (mm)0Preload torque (N·cm)
2.0 to 25.0 Up to 6.0---Spacer ball
None
Recirculation system
End deflector method
Wiper
None
LubricantAlvania Grease S2

Screw shaft diameter ø25, Lead 5

ø19-0.21● Ball screw specifications

ø40-0.025

Screw shaft
diameter ø25

FG series (Accuracy grade C5) / FE series (Accuracy grade C7)

E-F

Applicable fixed end support unit
BUK-20, BUK-20F (Square type)
BUM-20, BUM-20F (Round type)● Optional specifications• Ball screw lubricating unit LUBSEAL can be equipped. The overall nut length will be 11 mm longer.
Model example: FG2505PS-HPSR-1505X1382-C5F→Wiper material S: LUBSEAL• Anticorrosive black coating (coating thickness: 1 to 2 μm) is available.
Accuracy
Accuracyof each ofparteach part
PreloadPreload
torque (N·cm)
torque (N·cm)Mass Mass
(kg)
(kg)
Without
clearance
Without clearanceWith clearanceWith clearance
X Y
Y Z
Z U
U V
V
0.060 0.060
2.37 2.37
0.085 0.085
0.011 0.011
0.015 0.015
0.013 0.013
0.005 0.005
2.0 to 25.0
2.0 to 25.0
Up to 6.0
Up to 6.03.74 3.74
0.130 0.130
5.47 5.47
0.090 0.090
2.37 2.37
0.018 0.018
0.030 0.030
0.130 0.130-------------- ------------- 3.74 3.74
0.190 0.190
5.47 5.47
X• 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.
• For models with lead accuracy grade of C3 or higher and unfinished shaft ends, consult KURODA.

B-117

G

G

L1 (Hardened portion)

8

100

Lt

Screw shaft
diameter ø25-0

ø15-0.011

5
C

0.

5

16

M20×1
27

80
V

V E-F

A
U E-F

0.

3

R0.3
or less E
53

8 20

18

ø24.5

-0

25

10

+0.1
0

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

U-0.003

-0

-0

+0.14

1.35 015.35

ø25-0.021

A

C0.5

R0.3 or lessF

Fixed end

022-0.35

C

A

ø21
X

ø19-0.21-0.004

M6×1(Oil hole)45

ø20-0.013

Plug

-0.1

-0.00912 15 10

Supported end

U Aø20-0.012

28→Thread length→Overall screw shaft length

0.

9

PCD 5

C

4

ø7

Standard precision 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
FG2510PS-HPNR-1520A → FG2510PS-HPNR-1520X1394-C5F

37
ø45-0.2-0Gø25-0.021

Z

A

30°

30°

● Shaft end finish type1

Y

4-6.6 drilled hole,
11 spot facing,
depth 6.5

C

Shaft diameter (mm) - Lead (mm)25 - 10
Number of circuits /2.7 turns 1 circuit /Thread direction
Right-handBall diameter (mm)4.7625
Root diameter (mm)21.0
SeriesFG
FE
Basic dynamic load rating C (N)
20400
Basic static load rating C0 (N)42600
Accuracy grade /C5 / S
C5 / F
C7 / M
Axial clearance symbol
0.005 or less 0.030 or less
Axial clearance (mm)0Preload torque (N·cm)
9.0 to 38.0 Up to 6.0---Spacer ball
None
Recirculation system
End deflector method
Wiper
None
LubricantAlvania Grease S2

Screw shaft diameter ø25, Lead 10

ø25-0.021● Ball screw specifications

ø45-0.025

Screw shaft
diameter ø25

FG series (Accuracy grade C5) / FE series (Accuracy grade C7)

E-F

Applicable fixed end support unit
BUK-20, BUK-20F (Square type)
BUM-20, BUM-20F (Round type)● Optional specifications• Ball screw lubricating unit LUBSEAL can be equipped. The overall nut length will be 11 mm longer.
Model example: FG2510PS-HPSR-1520X1394-C5F→Wiper material S: LUBSEAL• Anticorrosive black coating (coating thickness: 1 to 2 μm) is available.
Screw
lengthshaft length
Lead accuracy
Model No.
Model No. Screw shaft
MaximumMaximum
stroke stroke Lead accuracy(Unfinished(Unfinishedshaft ends)
shaft ends)(L1 - nut length)(L1 - nut length)
ec e300
e300
L1
L1 Lt
Lt
±Ec
±Ec ec
FG2510PS-HPNR-1020A
FG2510PS-HPNR-1020A
912
912
1020 1020 875
875 0.040 0.040
0.027 0.027
0.018 0.018
FG2510PS-HPNR-1520A
FG2510PS-HPNR-1520A
1412 1412
1520 1520 1375 1375 0.054 0.054
0.035 0.035
FE2510PS-HPNR-1020A
FE2510PS-HPNR-1020A
912
912
1020 1020 875
875
0.05/3000.05/300-------------FE2510PS-HPNR-1520A
FE2510PS-HPNR-1520A
1412 1412
1520 1520 1375 1375
• Product with axial clearance of 0.005 or less (F) shown may be partially preloaded.
• Preload torque is a value before applying grease.

B-120

Accuracy
Accuracyof each ofparteach part
PreloadPreload
torque (N·cm)
torque (N·cm)Mass Mass
(kg)
(kg)
Without
clearance
Without clearanceWith clearanceWith clearance
X Y
Y Z
Z U
U V
V
0.100 0.100
3.92 3.92
0.011 0.011
0.015 0.015
0.013 0.013
0.005 0.005
9.0 to 38.0
9.0 to 38.0
Up to 6.0
Up to 6.0
0.130 0.130
5.60 5.60
0.150 0.150
3.92 3.92
0.018 0.018
0.030 0.030-------------- ------------0.190 0.190
5.60 5.60
X• 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.
• For models with lead accuracy grade of C3 or higher and unfinished shaft ends, consult KURODA.

B-121

X

G

G

L1 (Hardened portion)

25
8

100

Lt

10

+0.1
0

Screw shaft
diameter ø25

-0

5
C

0.

5
0.
C

R0.3
or less E

16

M20×1
27

53
8 20

A
U E-F

ø15-0.011

U-0.003

3

1.35

+0.14
0

18

ø24.5

-0

0.

R0.3 or less

80
V E-F

V E-F

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

Fixed end

022-0.35

-0

C0.5

15.35

ø25-0.021

A
ø21

15 12

-0.1

31

-0

-0.00445Aø20-0.013

Plug

M6×1
(Oil hole)

Supported endAø19-0.21Uø20-0.012

28→Thread length→Overall screw shaft length

C

9

PCD 5

F

ø45-0.2-04

ø7Standard precision 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
FG2525PS-HPNR-1520A → FG2525PS-HPNR-1520X1394-C5F

58

A-0.009G
ø25-0.021

Z

30°

30°

● Shaft end finish type1

Y

4-6.6 drilled hole,
11 spot facing,
depth 6.5

C

Shaft diameter (mm) - Lead (mm)25 - 25
Number of circuits /1.7 turns 1 circuit /Thread direction
Right-handBall diameter (mm)4.7625
Root diameter (mm)21.0
SeriesFG
FE
Basic dynamic load rating C (N)
13100
Basic static load rating C0 (N)25900
Accuracy grade /C5 / S
C5 / F
C7 / M
Axial clearance symbol
0.005 or less 0.030 or less
Axial clearance (mm)0Preload torque (N·cm)
6.0 to 32.0 Up to 6.0---Spacer ball
None
Recirculation system
End deflector method
Wiper
None
LubricantAlvania Grease S2

Screw shaft diameter ø25, Lead 25

ø25-0.021● Ball screw specifications

ø45-0.025

Screw shaft
diameter ø25

FG series (Accuracy grade C5) / FE series (Accuracy grade C7)

Applicable fixed end support unit
BUK-20, BUK-20F (Square type)
BUM-20, BUM-20F (Round type)● Optional specifications• Ball screw lubricating unit LUBSEAL can be equipped. The overall nut length will be 11 mm longer.
Model example: FG2525PS-HPSR-1520X1394-C5F→Wiper material S: LUBSEAL• Anticorrosive black coating (coating thickness: 1 to 2 μm) is available.
Screw
lengthshaft length
Lead accuracy
Model No.
Model No. Screw shaft
MaximumMaximum
stroke stroke Lead accuracy(Unfinished(Unfinishedshaft ends)
shaft ends)(L1 - nut length)(L1 - nut length)
ec e300
e300
L1
L1 Lt
Lt
±Ec
±Ec ec
FG2525PS-HPNR-1020A
FG2525PS-HPNR-1020A
912
912
1020 1020 854
854 0.040 0.040
0.027 0.027
0.018 0.018
FG2525PS-HPNR-1520A
FG2525PS-HPNR-1520A
1412 1412
1520 1520 1354 1354 0.054 0.054
0.035 0.035
FE2525PS-HPNR-1020A
FE2525PS-HPNR-1020A
912
912
1020 1020 854854
0.05/3000.05/300-------------FE2525PS-HPNR-1520A
FE2525PS-HPNR-1520A
1412 1412
1520 1520 1354 1354
• Product with axial clearance of 0.005 or less (F) shown may be partially preloaded.
• Preload torque is a value before applying grease.

B-126

Accuracy
Accuracyof each ofparteach part
PreloadPreload
torque (N·cm)
torque (N·cm)Mass Mass
(kg)
(kg)
Without
clearance
Without clearanceWith clearanceWith clearance
X Y
Y Z
Z U
U V
V
0.100 0.100
6.0 to 32.0
6.0 to 32.0
4.39 4.39
0.011 0.011
0.015 0.015
0.013 0.013
0.005 0.005
Up to 6.0
Up to 6.0
0.130 0.130
6.0 to 32.0
6.0 to 32.0
6.23 6.23
0.150 0.150
4.39 4.39
0.018 0.018
0.030 0.030-------------- ------------0.190 0.190
6.23 6.23
X• 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.
• For models with lead accuracy grade of C3 or higher and unfinished shaft ends, consult KURODA.

B-127