Technical Information

GearMeAluminum Group 0 and Group 1 Pump

www.danfoss.com

Technical Information
GearMe Aluminum Group 0 and Group 1 Pump

Revision history

2 | © Danfoss | February 2023

Table of revisions
Date

ChangedRev

February 2023

Fixed typo

0203

January 2023

Renamed product0202

April 2021

Content correction throughout document

0201

October 2019

First edition

0101

BC320173499791en-000203

Technical Information
GearMe Aluminum Group 0 and Group 1 Pump
Contents
General Information
Overview..............................................................................................................................................................................................5
Features and benefits..................................................................................................................................................................... 6Group 0Design...................................................................................................................................................................................................7
Features................................................................................................................................................................................................7
Product Code..................................................................................................................................................................................... 8
Model code....................................................................................................................................................................................8
A Family.....................................................................................................................................................................................8
B Displacement.......................................................................................................................................................................8
C Rotation................................................................................................................................................................................. 9
D Project version.................................................................................................................................................................... 9
E Mounting flange................................................................................................................................................................. 9
F Drive gear.............................................................................................................................................................................. 9
G Rear cover.............................................................................................................................................................................9
H Inlet size; I Outlet size.......................................................................................................................................................9
J Ports positions & Special body.................................................................................................................................... 10
K Seals......................................................................................................................................................................................10
L Screws.................................................................................................................................................................................. 10
M Set valve.............................................................................................................................................................................10
N Type mark.......................................................................................................................................................................... 10
O Mark position....................................................................................................................................................................10
Dimensions.......................................................................................................................................................................................11
TFPONN-01FA............................................................................................................................................................................ 11Group 1
Pump design....................................................................................................................................................................................12
SNP1NN............................................................................................................................................................................................. 12
SKP1NN..............................................................................................................................................................................................13
SKP1IN AND SNP1IN......................................................................................................................................................................13
Pump displacements.................................................................................................................................................................... 14
General Information
Technical data................................................................................................................................................................................. 15
Product CodeModel code.......................................................................................................................................................................................17
A Family........................................................................................................................................................................................17
B Displacement..........................................................................................................................................................................17
C Rotation....................................................................................................................................................................................17
D Project version.......................................................................................................................................................................17
E Mounting flange....................................................................................................................................................................18
F Drive gear.................................................................................................................................................................................18
G Rear cover................................................................................................................................................................................18
H Inlet size; I Outlet size..........................................................................................................................................................18
J Ports positions & Special body..........................................................................................................................................19
K Seals........................................................................................................................................................................................... 19
L Screws........................................................................................................................................................................................20
M Set valve.................................................................................................................................................................................. 20
N Type mark................................................................................................................................................................................20
O Mark position......................................................................................................................................................................... 20
Determination of Nominal Pump Sizes
Determination of nominal pump sizes.................................................................................................................................. 21
System Requirements
Pressure............................................................................................................................................................................................. 22
Speed..................................................................................................................................................................................................22
Hydraulic fluids............................................................................................................................................................................... 23
Temperature and viscosity......................................................................................................................................................... 23
Filtration............................................................................................................................................................................................ 24© Danfoss | February 2023

BC320173499791en-000203 | 3

Technical Information
GearMe Aluminum Group 0 and Group 1 Pump
Contents
Filters.............................................................................................................................................................................................24
Selecting a filter.........................................................................................................................................................................24
Reservoir...................................................................................................................................................................................... 24
Line sizing......................................................................................................................................................................................... 25
Pump drive....................................................................................................................................................................................... 25
Pump drive data form.................................................................................................................................................................. 26
Pump Life.......................................................................................................................................................................................... 27
Sound levels.....................................................................................................................................................................................27
Pump Performance
Pump performance graphs........................................................................................................................................................ 28
Product Options
Flange, shaft and port configurations.................................................................................................................................... 31
Shaft options....................................................................................................................................................................................31
Inlet/Outlet port configurations............................................................................................................................................... 32
Ports.................................................................................................................................................................................................... 33
SNP1IN............................................................................................................................................................................................... 34
Variant codes for ordering integral relief valves.................................................................................................................35
Integral relief valve schematic...................................................................................................................................................36
Dimensions
SNP1NN - 01BA and 01DA.......................................................................................................................................................... 37
SKP1NN – 02BB and 02FA........................................................................................................................................................... 38
SNP1NN – 03CA.............................................................................................................................................................................. 39
SKP1NN – 06GA and 06SA.......................................................................................................................................................... 40

4 | © Danfoss | February 2023

BC320173499791en-000203

Technical Information
GearMe Aluminum Group 0 and Group 1 Pump
General Information
Overview
The Danfoss Group 0 and Group 1 is a range of peak performance fixed-displacement gear pumps.
Constructed of a high strength extruded aluminum body with aluminum cover and flange, all pumps arepressure-balanced for exceptional efficiency. The flexibility of the range, combined with high efficiency
and low noise, makes the pumps in this series ideal for a wide range of applications, including: turf care,aerial lifts, material handling, and power packs.
TFP0NN 01FA

SNP1NN 01BA

© Danfoss | February 2023

BC320173499791en-000203 | 5

Technical Information
GearMe Aluminum Group 0 and Group 1 Pump
General Information
SKP1NN 06SA

SNP1NN 03CA

Features and benefits
Gear pump attributes:

•
•
•
•
•
•
•

6 | © Danfoss | February 2023

Up to 16 displacements from 0,25 to 12 cm3/rev [from 0.015 to 0.732 in3/rev
Continuous pressure rating up to 250 bar [3625 psi]
Speeds up to 4000 min-1 (rpm)
SAE, ISO, and DIN mounting flanges and shafts
Compact, lightweight, quiet operation
Group 1 units are available as unidirectional and bi-directional motors, also with integral relief valve
You can combine groups 1, 2 and 3 to make multi-stage pump

BC320173499791en-000203

Technical Information
GearMe Aluminum Group 0 and Group 1 Pump
Group 0TFP0NN pumps provide flexibility, numerous displacements, features, and shaft/port options. The
TFP0NN series has earned an excellent reputation for rugged, dependable performance at continuouspressures and speeds.
TFP0NN 01FA

TFP0NN pumps are available in five displacements from 0.25 to 1.27 cm3/rev [0.015 to 0.075 in3/rev].
Complete information can be found by referring to the specific sections in this technical manual.
DesignConstructed of high strength aluminum, the TFP0NN rotation is either clockwise or counterclockwise.

Features
Special features of Group 0 pumps include:• Wide range of displacements• Parallel shaft ends
• Standard mounting flange (European, 2-bolt)• European port options© Danfoss | February 2023

BC320173499791en-000203 | 7

Technical Information
GearMe Aluminum Group 0 and Group 1 Pump
Group 0Technical data – Group 0 gear pumps
Frame size

cm3/rev

Displacement[in3/rev]

Peak pressure
bar [psi]

Rated pressure
Minimum pressure at maximum speed
Minimum speed at 103 bar [1500 psi]

min-1 (rpm)Maximum speed

,25

,45

,57

,76

1,3

0.25
[0.015]0.45[0.027]0.57[0.034]0.76[0.045]1.27[0.075]200[2900]

200[2900]

200[2900]

200[2900]

200[2900]

180[2600]

180[2600]

180[2600]

180[2600]

180[2600]

103[1500]

103[1500]

103[1500]

103[1500]

103[1500]

500

500

500

500

500

8000

8000

8000

7000

5000

Weightkg [lb]0.40[0.88]

0.45[1.00]

0.46[1.01]

0.47[1.03]

0.48[1.06]

Moment of inertia of rotating components

x 10-6 kg•m2[x 10-6 lb•ft2]

0.425[10.09]0.544[12.91]0.621[14.74]0.737[17.49]1.049[24.89]Theoretical flow at maximum speedl/min[US gal/min]

2.00[0.53]

3.60[0.95]

4.56[1.20]

5.32[1.41]

6.35[1.68]

M

N O

M

N O

1 kg•m2 = 23.68 lb•ft2
For applications requiring parameters beyond those listed above, contact Danfoss.

Product CodeModel code

A FamilyAB● ● ● ● ● ●

C D

E

F

G

H

I

J

K L

/

/

TFP0NN

Std gear pump

TFR0NN

Reversible pump

B Displacement
AB/

8 | © Danfoss | February 2023

● ● ●

,25

Displacement 0,25cc,45

Displacement 0,45cc,57

Displacement 0,57cc,76

Displacement 0,76cc

1,3

Displacement 1,3cc

C D

E

F

G

H

I

J

K L
/

BC320173499791en-000203

Technical Information
GearMe Aluminum Group 0 and Group 1 Pump
Group 0C Rotation
A

B

C D

E

F

G

H

I

J

K L

●

/
L

Left rotationR

Right rotation

B

Reversible pump

M

N O

M

N O

M

N O

M

N O

M

N O

M

N O

/

D Project version
A

B

C D

E

F

G

H

I

J

K L

●

/

/

Std gear version

N

E Mounting flange
A

B

C D

E

F

G

H

I

J

K L

● ●

/

/

Code

Description (Type of flange • Type of drive gear • Preferred ports for configuration)

01

European 2-bolt flange

F Drive gear
A

B

C D

E

F

G

H

I

J

K L

● ●

/
CA

Tang drive 5xØ7

FA

Parallel shaft 7,0 mm [0.276 in]/

G Rear cover
A

B

C D

E

F

G

H

I

J

K L

● ●

/

/

P1

Standard cover for pump

R1

Standard cover for reversible pump

H Inlet size; I Outlet size
A

B/

© Danfoss | February 2023

C D

E

F

G

H

I

● ● ● ●J

K L/

BC320173499791en-000203 | 9

Technical Information
GearMe Aluminum Group 0 and Group 1 Pump
Group 0
D1

M10x1- Threaded metric port

D3

M14x1,5- Threaded metric port

F2

1/4 GAS - Threaded BSP port

J Ports positions & Special body
A

B

C D

E

F

G

H

I

J

K L

● ●

/

M

N O

M

N O

M

N O

M

N O

/

Std position from catalog

NN

K Seals
A

B

C D

E

F

G

H

I

J

K L
●

/

/

Standard Buna sealN

L Screws
A

B

C D

E

F

G

H

I

J

K L
●

/

/

Std screws

N

M Set valve
A

B

C D

E

F

G

H

I

J

K L

/

/

● ● ●

No valveNNN

N Type mark
A

B

C D

E

F

G

H

I

J

K L

/

M

●

/

N

Standard Danfoss Marking

AStandard Danfoss Marking+Customer CodeN O

O Mark position
A

B/

10 | © Danfoss | February 2023

C D

E

F

G

H

I

J

K L

M
/

N O
●

BC320173499791en-000203

Technical Information
GearMe Aluminum Group 0 and Group 1 Pump
Group 0N

Std Marking position (on top)A

Special Marking position on the bottom

Dimensions
TFPONN-01FA
Available 01FA configuration only.

TFP0NN dimensions
Frame size
Dimension

,25

,45

,57

,76

1,3

A

53.5 [2.10]

55.0 [2.16]

56.0 [2.20]

61.5 [2.42]

61.5 [2.42]

B

26.5 [1.04]

27.3 [1.07]

27.8 [1.09]

30.5 [1.20]

30.5 [1.20]

M10 x 1

Inlet/Outlet

Model code examples and maximum shaft torque
Flange/drive gear

Model code example

Maximum shaft torque

01FA

TFP0NN/,57RN01FAP1D1D1NNNN/NNNNN

4.5 N•m [39.8 lb•in]

For further details on ordering, see Product Code on page 8.

© Danfoss | February 2023

BC320173499791en-000203 | 11

Technical Information
GearMe Aluminum Group 0 and Group 1 Pump
Group 1
Pump design
SNP1NN
SNP1NN pumps only include European flange and shaft configurations (code 01BA, 01DA, and 03CA).
SNP1NN 01BA (cut away)

12 | © Danfoss | February 2023

BC320173499791en-000203

Technical Information
GearMe Aluminum Group 0 and Group 1 Pump
Group 1SKP1NNSKP1NN has a larger diameter shaft than the SNP1NN. It spans the complete displacement range at
higher pressures than the SNP1IN and the SNP1NN. Configurations include European and SAE flanges
and shafts (code 02BB, 02FA, 06SA, and 06GA).
SKP1IN AND SNP1IN
Danfoss offers an optional integral relief valve integrated in the rear cover. It is drained internally anddirects all flow from the pump outlet to the inlet when the outlet pressure reaches the valve setting. SNI1
pumps only include European flange and shaft configurations (code 01BA, 01DA, and 03CA).
SNP1IN 03CA (cut away)© Danfoss | February 2023

BC320173499791en-000203 | 13

Technical Information
GearMe Aluminum Group 0 and Group 1 Pump
Group 1
Pump displacements
Quick reference chart for pump displacements vs. rated pressure

Quick reference chart for pump displacements vs. rated pressure
SNP1NNSKP1NN

Rated pressure (bar)

250{
200
150
100
50
0
0

1

2

3

4

5

6

7

8

9

10

11

12

Displacement (cm3/rev)

14 | © Danfoss | February 2023

BC320173499791en-000203

Technical Information
GearMe Aluminum Group 0 and Group 1 Pump
General Information
Technical data
Frame size
1,2

1,7

2,2

2,6

3,2

3,8

4,3

6,0

7,8

010

012

cm3/r
Displacement

ev
[in3/
rev]

1.18
1.57
2.09
2.62
3.14
3.66
4.19
5.89
7.59
9.94
12.00
[0.072] [0.096] [0.128] [0.160] [0.192] [0.223] [0.256] [0.359] [0.463] [0.607] [0.732]
SNP1NN

Peak pressure
Ratedpressure

bar
[psi]

Minimum
speed at
0-150 bar
Min. speed at
150 bar to
ratedpressure

min-1
(rpm)

Maximum
speed

270
270
270
270
270
270
270
210
170
[3915] [3915] [3915] [3915] [3915] [3915] [3915] [3045] [2465]
250
250
250
250
250
250
250
190
150
[3625] [3625] [3625] [3625] [3625] [3625] [3625] [2760] [2175]
800

800

600

600

600

600

500

500

500

1200

1200

1000

1000

1000

1000

800

800

800

4000

4000

4000

4000

4000

4000

3000

3000

3000

–

–

SKP1NN*
Peak pressure
Ratedpressure

bar
[psi]

Minimum
speed at
0-150 bar
Min. speed at
150 bar to
ratedpressure

min-1
(rpm)

Maximum
speed

270
270
270
270
270
270
270
250
220
170
140
[3915] [3915] [3915] [3915] [3915] [3915] [3915] [3625] [3190] [2465] [2030]
250
250
250
250
250
250
250
230
200
150
120
[3625] [3625] [3625] [3625] [3625] [3625] [3625] [3335] [2900] [2175] [1740]
800

800

800

800

800

800

600

600

600

600

600

1200

1200

1000

1000

1000

1000

1000

800

800

800

–

4000

4000

4000

4000

4000

4000

3000

3000

3000

2000

2000

All (SNP1NN, SKP1NN)
Weightkg [lb]1.02[2.26]

1.05[2.31]

1.09[2.40]

1.11[2.45]

1.14[2.51]

1.18[2.60]

1.20[2.65]

1.30[2.87]

1.39[3.06]

1.55[3.42]

1.65[3.64]

Moment ofinertia ofrotating
components

x 10-6kg•m2[x 10-6lb•ft2]

3.2
[77]

3.7
[89]

4.4
[105]

5.1
[120]

5.7
[136]

6.4
[152]

7.1
[168]

9.3
[220]

11.4
[271]

14.6
[347]

17.1
[407]

Theoreticalflow atmaximum
speed

l/min
[US
gal/
min]

4.72
[1.25]

6.28[1.66]

8.36[2.21]

10.48[2.77]

12.56[3.32]

14.64[3.87]

12.57[3.32]

17.67[4.67]

22.77[6.02]

19.88[5.25]

24[6.34]* SKP1NN is a special version of the SNP1NN. It is designed to accommodate an SAE 9T 20/40 DP tooth splined shaft

for higher torque applications.

1 kg•m2 = 23.68 lb•ft2© Danfoss | February 2023

BC320173499791en-000203 | 15

Technical Information
GearMe Aluminum Group 0 and Group 1 Pump
General Information

C Caution
The rated and peak pressure mentioned are for pumps with flanged ports only. When threaded ports are
required a derated performance has to be considered. To verify the compliance of an high pressure
application with a threaded ports pump apply to a Danfoss representative.

16 | © Danfoss | February 2023

BC320173499791en-000203

Technical Information
GearMe Aluminum Group 0 and Group 1 Pump
Product CodeModel code
A FamilyAB● ● ● ● ● ●

C D

E

F

G

H

I

J

K L

/

M

N O

M

N O

M

N O

M

N O

/

SNB1NN

Gear pump with inlet port on cover and outlet port on flange

SNP1NN

Standard gear pump

SNC1NN

Gear pump with inlet and outlet ports on rear cover

SNP1IN

Gear pump with internal drain relief valve

SKP1NNHigh torque gear pump

SKP1INHigh torque gear pump with internal drain relief valve

B Displacement
A

B
/

1,2

1,18 cc

1,7

1,57 cc

2,2

2,09 cc

2,6

2,62 cc

3,2

3,14 cc

3,8

3,66 cc

4,3

4,19 cc

6,0

5,89 cc

7,8

7,59 cc010

9,94 cc012

12,00 cc

C D

E

F

G

H

I

J

K L

● ● ●

/

C Rotation
A

B

Left rotationR

Right rotation

E

F

G

H

I

J

K L

●

/
L

C D

/

D Project version
A

B
/

N

© Danfoss | February 2023

C D
●

E

F

G

H

I

J

K L
/

Standard gear pump

BC320173499791en-000203 | 17

Technical Information
GearMe Aluminum Group 0 and Group 1 Pump
Product CodeE Mounting flange
A

B

C D

E

F

G

H

I

J

K L

● ●

/

M

N O

M

N O

M

N O

M

N O

/

Code

Description (Type of flange • Type of drive gear • Preferred ports for configuration)01

pilot Ø25,4+4 holes

02

pilot Ø30+4 holes

03

pilot Ø32+O-ring+2 holes through body04

pilot Ø32+2 holes through body

06

SAE A-A pilot Ø50,8+ 2 holes

F Drive gear
A

B

C D

E

F

G

H

I

J

K L

● ●

/
AA

Taper 1:5-M6-Key 2BA

Taper 1:8-M7-Key 2,41BB

Taper 1:8-M10x1-Key 3

CA

Tang 5x Ø10

CE

Tang 6,63x Ø11 - for SKP1xN

CM

Tang 5x Ø10-type 03 + w/o couplingDA

SplinedZ15-m0,75-alfa 30°-L14 - for SNP1xx

DB

SplinedZ15-m0,75-alfa 30°-L14 - for SKP1xx

FA

Parallel Ø12-Thread M10x1-Key 3

GA

Parallel Ø12,7-Key 3.2

SA

SAE spline J498-9T-20/40/

G Rear cover
A

B

C D

E

F

G

H

I

J

K L

● ●

/

/

03

Cover 03 (used with flange 03-04)

08

Cover 08 with Inlet port 3/8" Gas

C1

Cover pump with front GAS Thread Inlet 3/8 ; Outlet 3/8

I1

Cover pump with relief valve

I3

Cover 03 with relief valve (used with flange 03)

P1

Std Cover pump

H Inlet size; I Outlet size
A

B/

18 | © Danfoss | February 2023

C D

E

F

G

H

I

● ● ● ●J

K L/

BC320173499791en-000203

Technical Information
GearMe Aluminum Group 0 and Group 1 Pump
Product CodeNN

Without inlet

B1

8x30xM6B2

13x30xM6

C1

8x26xM5

C2

12x26xM5

C3

13, 5x30xM6

D3

M14x1,5D5

M18x1,5

D7

M22x1,5

E3

9/16-18UNF

E4¾-16UNF

E5

7/8-14UNF

F2

¼ GAS

F3

3/8 GAS

F4

½ GAS

H2

10xM12x1,5-ISO6149

H4

12xM16x1,5-ISO6149

H5

12xM18x 1, 5-ISO6149

H713, 5xM22x 1, 5-ISO6149

J Ports positions & Special body
A

B

C D

E

F

G

H

I

J

K L

● ●

/

M

N O

M

N O

/

Std from catalogue

NN

K SealsA

B/© Danfoss | February 2023

N

Standard NBR sealA

Without shaft seal

B

With VITON seals

C D

E

F

G

H

I

J

K L
●

/

BC320173499791en-000203 | 19

Technical Information
GearMe Aluminum Group 0 and Group 1 Pump
Product Code
L Screws
A

B

C D

E

F

G

H

I

J

N

Std screws

B

GEOMET screws

K L
●

/

M

N O

M

N O

/

M Set valve
A

B

C D

E

F

G

H

I

J

K L

/

/

NNN

No valveV*not defined-pressure no setting :oil ISO VG68-45°● ● ●* For details see Variant codes for ordering integral relief valves on page 35.

N Type mark
A

B

C D

E

F

G

H

I

J

K L

/

M

●

/

N

Standard Danfoss Marking

AStandard Danfoss Marking+Customer CodeZ

Without Marking

N O

O Mark position
A

B

C D

E

/

20 | © Danfoss | February 2023

N

Std Marking position (on top)A

Special Marking position on the bottom

F

G

H

I

J

K L

M
/

N O
●

BC320173499791en-000203

Technical Information
GearMe Aluminum Group 0 and Group 1 Pump
Determination of Nominal Pump Sizes
Determination of nominal pump sizes
Use these formula to determine the nominal pump size for a specific application:© Danfoss | February 2023

Vg =Displacement per rev.

cm3/rev [in3/rev]

pHD =Outlet pressure

bar [psi]pND =Inlet pressure

bar [psi]Δp =pHD – pND

bar [psi]

n=

Speed

min-1 (rpm)ηv =Volumetric efficiency

ηm =Mechanical (torque) efficiency

ηt =Overall efficiency (ηv • ηm)

BC320173499791en-000203 | 21

Technical Information
GearMe Aluminum Group 0 and Group 1 Pump
System Requirements
Pressure
The inlet vacuum must be controlled in order to realize expected pump life and performance. The systemdesign must meet inlet pressure requirements during all modes of operation. Expect lower inlet
pressures during cold start. It should improve quickly as the fluid warms.
0.8 [23.6]

Max. continuous vacuum
bar abs. [in. Hg]

Max. intermittent vacuum

0.6 [17.7]
4.0 [118.1]

Max. pressure

Peak pressure is the highest intermittent pressure allowed. The relief valve overshoot (reaction time)
determines peak pressure. It is assumed to occur for less than 100 ms. The accompanying illustrationshows peak pressure in relation to rated pressure and reaction time (100 ms maximum).
Peak pressure

Pressure

Rated pressure

Reaction time (100 ms max)Time

Rated pressure is the average, regularly occurring, operating pressure that should yield satisfactory
product life. The maximum machine load demand determines rated pressure. For all systems, the load
should move below this pressure.
System pressure is the differential of pressure between the outlet and inlet ports. It is a dominantoperating variable affecting hydraulic unit life. High system pressure, resulting from high load, reduces
expected life. System pressure must remain at, or below, rated pressure during normal operation toachieve expected life.
Speed
Maximum speed is the limit recommended by Danfoss for a particular gear pump when operating at
rated pressure. It is the highest speed at which normal life can be expected.
The lower limit of operating speed is the minimum speed. It is the lowest speed at which normal life canbe expected. The minimum speed increases as operating pressure increases. When operating underhigher pressures, a higher minimum speed must be maintained, as illustrated here.

22 | © Danfoss | February 2023

BC320173499791en-000203

Technical Information
GearMe Aluminum Group 0 and Group 1 Pump
System Requirements
Speed versus pressure

Pressure

Rated

Operatingenvelope

P1

0

N1

Speed

N2

Max

Where:
N1 = Minimum speed at 100 bar
N2 = Minimum speed at 180 bar
Hydraulic fluids
Ratings and data for SNP1NN, and SKP1NN gear pumps are based on operating with premium hydraulicfluids containing oxidation, rust, and foam inhibitors. These fluids must possess good thermal andhydrolytic stability to prevent wear, erosion, and corrosion of internal components. They include:• Hydraulic fluids following DIN 51524, part 2 (HLP) and part 3 (HVLP) specifications• API CD engine oils conforming to SAE J183
• M2C33F or G automatic transmission fluids• Certain agricultural tractor fluids
Use only clean fluid in the pump and hydraulic circuit.

C Caution
Never mix hydraulic fluids.
Temperature and viscosity
Temperature and viscosity requirements must be concurrently satisfied. Use petroleum / mineralbased fluids.
High temperature limits apply at the inlet port to the pump. The pump should run at or below the
maximum continuous temperature. The peak temperature is based on material properties. Don’t exceed
it.
Cold oil, generally, doesn’t affect the durability of pump components. It may affect the ability of oil toflow and transmit power. For this reason, keep the temperature at 16 °C [60 °F] above the pour point of
the hydraulic fluid.
Minimum (cold start) temperature relates to the physical properties of component materials.
Minimum viscosity occurs only during brief occasions of maximum ambient temperature and severe duty
cycle operation. You will encounter maximum viscosity only at cold start. During this condition, limit
speeds until the system warms up. Size heat exchangers to keep the fluid within these limits. Test
regularly to verify that these temperatures and viscosity limits aren’t exceeded. For maximum unit
efficiency and bearing life, keep the fluid viscosity in the recommended viscosity range.
© Danfoss | February 2023

BC320173499791en-000203 | 23

Technical Information
GearMe Aluminum Group 0 and Group 1 Pump
System Requirements
Fluid viscosity
Maximum (cold start)

mm2/s [SUS]

1000 [1600]

Recommended range

12-60 [66-290]

Minimum

10 [60]Temperature (with standard NBR seals)
Minimum (cold start)-20 [-4]°C [°F]

Maximum continuous

80 [176]

Peak (intermittent)

90 [194]

Filtration
Filters
Use a filter that conforms to Class 22/18/13 of ISO 4406 (or better). It may be on the pump outlet(pressure filtration), inlet (suction filtration), or reservoir return (return-line filtration).
Selecting a filter
When selecting a filter, please consider:contaminant ingression rate (determined by factors such as the number of actuators used in thesystem)• generation of contaminants in the system• required fluid cleanliness• desired maintenance interval• filtration requirements of other system components•

Measure filter efficiency with a Beta ratio (βX). For:suction filtration, with controlled reservoir ingression, use a β35-45 = 75 filter
return or pressure filtration, use a pressure filtration with an efficiency of β10 = 75••

βx ratio is a measure of filter efficiency defined by ISO 4572. It is the ratio of the number of particles
greater than a given diameter ( “X“ in microns) upstream of the filter to the number of these particles
downstream of the filter.
Fluid cleanliness level and βx ratio
Fluid cleanliness level (per ISO 4406)

Class 22/18/13 or betterβx ratio (suction filtration)

β35-45 = 75 and β10 = 2

βx ratio (pressure or return filtration)β10 = 75

Recommended inlet screen size

100-125 µm [0.004-0.005 in]

The filtration requirements for each system are unique. Evaluate filtration system capacity by monitoring
and testing prototypes.
Reservoir
The reservoir provides clean fluid, dissipates heat, removes entrained air, and allows fluid volume
changes associated with fluid expansion and cylinder differential volumes. A correctly sized reservoir
accommodates maximum volume changes during all system operating modes. It promotes deaeration of
the fluid as it passes through, and accommodates a fluid dwell-time between 60 and 180 seconds,
allowing entrained air to escape.
24 | © Danfoss | February 2023

BC320173499791en-000203

Technical Information
GearMe Aluminum Group 0 and Group 1 Pump
System Requirements
Minimum reservoir capacity depends on the volume required to cool and hold the oil from all retracted
cylinders, allowing for expansion due to temperature changes. A fluid volume of 1 to 3 times the pump
output flow (per minute) is satisfactory. The minimum reservoir capacity is 125% of the fluid volume.
Install the suction line above the bottom of the reservoir to take advantage of gravity separation andprevent large foreign particles from entering the line. Cover the line with a 100-125 micron screen. The
pump should be below the lowest expected fluid level. Put the return-line below the lowest expectedfluid level to allow discharge into the reservoir for maximum dwell and efficient deaeration. A baffle (orbaffles) between the return and suction lines promotes deaeration and reduces fluid surges.
Line sizing
Choose pipe sizes that accommodate minimum fluid velocity to reduce system noise, pressure drops, andoverheating. This maximizes system life and performance.
Design inlet piping that maintains continuous pump inlet pressure above 0.8 bar absolute during normal
operation. The line velocity should not exceed the values in this table:
Maximum line velocity
2.5 [8.2]

Inlet
m/s [ft/sec]

Outlet5.0 [16.4]
3.0 [9.8]

ReturnMost systems use hydraulic oil containing 10% dissolved air by volume. Under high inlet vacuum
conditions the oil releases bubbles. They collapse when subjected to pressure, resulting in cavitation,
causing adjacent metal surfaces to erode. Over-aeration is the result of air leaks on the inlet side of thepump, and flow-line restrictions. These include inadequate pipe sizes, sharp bends, or elbow fittings,
causing a reduction of flow line cross sectional area. This problem will not occur if inlet vacuum and rated
speed requirements are maintained, and reservoir size and location are adequate.
Pump drive
Shaft options for Group 1 gear pumps include tapered, tang, splined, or parallel shafts. They are suitable
for a wide range of direct and indirect drive applications for radial and thrust loads.
Plug-in drives, acceptable only with a splined shaft, can impose severe radial loads when the mating
spline is rigidly supported. Increasing spline clearance does not alleviate this condition.
Pilot cavity

Mating splineØ 0.1 [0.004]

Use plug-in drives if the concentricity between the mating spline and pilot diameter is within 0.1 mm[0.004 in]. Lubricate the drive by flooding it with oil. A 3-piece coupling minimizes radial or thrust shaft
loads.

© Danfoss | February 2023

BC320173499791en-000203 | 25

Technical Information
GearMe Aluminum Group 0 and Group 1 Pump
System Requirements

C Caution
In order to avoid spline shaft damages it is recommended to use carburized and hardened steel
couplings with 80-82 HRA surface hardness.
Allowable radial shaft loads are a function of the load position, load orientation, and operating pressureof the hydraulic pump. All external shaft loads have an effect on bearing life, and may affect pump
performance.
In applications where external shaft loads can’t be avoided, minimize the impact on the pump by
optimizing the orientation and magnitude of the load. Use a tapered input shaft; don’t use splined shafts
for belt or gear drive applications. A spring-loaded belt tension-device is recommended for belt drive
applications to avoid excessive tension. Avoid thrust loads in either direction.
Pump drive data form
Contact Danfoss if continuously applied external radial or thrust loads occur. Fill out this page and send
the complete form to your Danfoss representative for an assistance in applying pumps with belt or gear
drive. This illustration shows a pump with counterclockwise orientation:
Optimal radial load position
90o

90o

a

a

Inlet port
180

o

0

o

Inlet port
180o

o

0

a

a

dw

P

270o

270o

dw

Application data
Item

Value

Unit

Pump displacement

cm3/rev [in3/rev]

Rated system pressure

bar psiRelief valve setting
Pump shaft rotation

left right

Pump minimum speed

min-1 (rpm)Pump maximum speed
Drive gear helix angle (gear drive only)

degreeBelt type (gear drive only)
Belt tension (gear drive only)

26 | © Danfoss | February 2023

V notchP

N lbf

BC320173499791en-000203

Technical Information
GearMe Aluminum Group 0 and Group 1 Pump
System Requirements
Application data (continued)
Item

Value

Unit

Angular orientation of gear or belt to inlet portɑ

degreePitch diameter of gear or pulley

dw

mm in

Distance from flange to center of gear or pulleyaPump Life
Pump life is a function of speed, system pressure, and other system parameters (such as fluid quality andcleanliness).
All Danfoss gear pumps use hydrodynamic journal bearings that have an oil film maintained between thegear/shaft and bearing surfaces at all times. If the oil film is sufficiently sustained through proper system
maintenance and operating within recommended limits, long life can be expected.
B10 life expectancy number is generally associated with rolling element bearings. It does not exist forhydrodynamic bearings.
High pressure, resulting from high loads, impacts pump life. When submitting an application for review,provide machine duty cycle data that includes percentages of time at various loads and speeds. We
strongly recommend a prototype testing program to verify operating parameters and their impact on life
expectancy before finalizing any system design.
Sound levels
Noise is unwanted sound. Fluid power systems create noise. There are many techniques available tominimize noise. Understanding how it’s generated and transmitted is necessary to apply these methods
effectively.
Noise energy is transmitted as fluid borne noise (pressure ripple) or structure borne noise. Pressure
ripple is the result of the number of pumping elements (gear teeth) delivering oil to the outlet and thepump’s ability to gradually change the volume of each pumping element from low to high pressure.
Pressure ripple is affected by the compressibility of the oil as each pumping element discharges into theoutlet of the pump. Pressure pulsations travel along hydraulic lines at the speed of sound (about 1400
m/s in oil) until there is a change in the system (as with an elbow fitting). Thus, the pressure pulsation
amplitude varies with overall line length and position.
Structure borne noise may be transmitted wherever the pump casing is connected to the rest of thesystem.
The way circuit components respond to excitation depends on their size, form, and mounting. Because ofthis, a system line may actually have a greater noise level than the pump. To minimize noise, use:
• flexible hoses (if you must use steel plumbing, clamp the lines).
• flexible (rubber) mounts to minimize other structure borne noise.

© Danfoss | February 2023

BC320173499791en-000203 | 27

Technical Information
GearMe Aluminum Group 0 and Group 1 Pump
Pump Performance
Pump performance graphs
The following graphs provide typical output flow and input power for Group 1 pumps at various working
pressures. Data were taken using ISO VG46 petroleum /mineral based fluid at 50°C (viscosity at 28 mm2/s[cSt]).

28 | © Danfoss | February 2023

BC320173499791en-000203

Technical Information
GearMe Aluminum Group 0 and Group 1 Pump
Pump Performance© Danfoss | February 2023

BC320173499791en-000203 | 29

Technical Information
GearMe Aluminum Group 0 and Group 1 Pump
Pump Performance30 | © Danfoss | February 2023

BC320173499791en-000203

Technical Information
GearMe Aluminum Group 0 and Group 1 Pump
Product Options
Flange, shaft and port configurations
Code Flange

Shaft

Port

01BA 25.4 mm [1.0 in] pilot Ø European
4-bolt

1:8 tapered

European flanged in+ pattern

01DA 25.4 mm [1.0 in] pilot Ø European
4-bolt15-teeth splined
m = 0.75
a = 30o

European flanged in+ pattern

03CA pilot Ø32 + O-ring + 2 holes
through body

Danfoss tang

Threaded metricport

04AA pilot Ø32 + O-ring + 2 holes
through body

1:5 tapered

Threaded metricport

Flange, shaft and port configurations for SKP1NN
Code Flange

Shaft

Port

02BB 30 mm [1.181]
pilot Ø European 4bolt

1:8 tapered

European flanged
in + pattern

02FA 30 mm [1.181]
pilot Ø European 4bolt

12 mm [0.472 in] parallel

European flanged
in + pattern

06GA SAE A-A
2-bolt12.7 mm [0.5 in] parallel

Threaded SAE ORing boss

06SA SAE A-A
2-bolt9-teeth splined SAE spline
J
498-9T-20/40DP

Threaded SAE ORing boss

Shaft options
Direction is viewed facing the shaft. Group 1 pumps are available with a variety of tang, splined, parallel,
and tapered shaft ends. Not all shaft styles are available with all flange styles.
Shaft availability and nominal torque capability
A

B/© Danfoss | February 2023

C D

E

F
● ●

G

H

I

J

K L

M

N O

/

BC320173499791en-000203 | 31

Technical Information
GearMe Aluminum Group 0 and Group 1 Pump
Product Options
Shaft

Mounting flange code with maximum torque in Nm [lb•in]

Code Description

01

02

03

04

06

AA

Taper 1:5-M6

25 [221]BA

Taper 1:8-M7

BB

Taper 1:8-M10

CA

Tang 5x Ø10

CE

Tang 6,63x Ø11

CM

Tang 5x Ø10-type 03 + w/o couplingDA

Splined Z15-m0,75-alfa 30°-L14

DB

Splined Z15-m0,75-alfa 30°-L14

35 [309]

FA

Parallel Ø12-Thread M10x1

24 [212]GA

Parallel Ø12,7-Key 3.2

32 [283]SA

SAE spline J498-9T-20/40

34 [301]25 [221]50 [442]
14 [124]
21 [186]
14 [124]
35 [309]

Danfoss recommends mating splines conform to SAE J498 or DIN 5482.
Danfoss external SAE splines have a flat root side fit with circular tooth thickness reduced by 0.127 mm[0.005 in] in respect to class 1 fit. Dimensions are modified to assure a clearance fit with the mating spline.

C Caution
Shaft torque capability may limit allowable pressure. Torque ratings assume no external radial loading.
Applied torque must not exceed these limits, regardless of stated pressure parameters. Maximum torqueratings are based on shaft torsional fatigue strength.
Various port configurations are available on Group 1 pumps. They include:
European standard flanged ports
German standard flanged ports
Gas threaded ports (BSPP)
O-Ring boss (following SAE J1926/1 [ISO 11926-1] UNF threads, standard)

•
•
•
•

For a table of dimensions, see Ports on page 33.
Inlet/Outlet port configurations
A

B

C D

E

F

32 | © Danfoss | February 2023

B1

8x30xM6B2

13x30xM6

C1

8x26xM5

C2

12x26xM5C313,5x30xM6

D3

M14x1,5D5

M18x1,5

D7

M22x1,5G

H

I● ● ● ●

/

J

K L

M

N O

/

Flanged port with threaded holes in X pattern, in center of body

Flanged port with threaded holes in + pattern (European standard ports)

Threaded metric port

BC320173499791en-000203

Technical Information
GearMe Aluminum Group 0 and Group 1 Pump
Product OptionsE3

9∕16-18UNF

E4¾ -16UNF

E5

7∕8-14UNF

F2

¼ GAS

F3

3∕8 GAS

F4

½ GAS

H2

M12x1,5

H4

M16x1,5H5

M18x1,5

H7

M22x1,5

Threaded SAE, O-Ring boss port

Threaded GAS (BSPP) port

Threaded metric port ISO 6149

Ports
Available ports
C

B

E

D

F

45o

i (4 holes min. full thd.
10 [0.394] deep)c (4 holes min. full thd.
10 [0.394] deep)

f

e

d

g
h

a
b

Dimensions of Group 1 pump ports
Port typePort dimension

C
b

c

g

h

i

D

E

F

d

e

f

¾–16UNF–2B

3/8 Gas (BSPP)

Inlet

13 [0.512] 30 [1.181] M6 12 [0.462] 26 [1.024] M5 M18x1.5

Outlet8 [0.315] 30 [1.181] M6 12 [0.462] 26 [1.024] M5 M14x1.5 9/16–18UNF–2B 3/8 Gas (BSPP)

Inlet

13 [0.512] 30 [1.181] M6 12 [0.462] 26 [1.024] M5 M18x1.5

Outlet8 [0.315] 30 [1.181] M6 12 [0.462] 26 [1.024] M5 M14x1.5 9/16–18UNF–2B 3/8 Gas (BSPP)

Inlet

13 [0.512] 30 [1.181] M6 12 [0.462] 26 [1.024] M5 M18x1.5

Outlet8 [0.315] 30 [1.181] M6 12 [0.462] 26 [1.024] M5 M14x1.5 9/16–18UNF–2B 3/8 Gas (BSPP)

1,2

1,7

2,2

¾–16UNF–2B¾–16UNF–2B

3/8 Gas (BSPP)

Inlet

13 [0.512] 30 [1.181] M6 12 [0.462] 26 [1.024] M5 M18x1.5

8 [0.315] 30 [1.181] M6 12 [0.462] 26 [1.024] M5 M14x1.5 9/16–18UNF–2B 3/8 Gas (BSPP)

Inlet

13 [0.512] 30 [1.181] M6 12 [0.462] 26 [1.024] M5 M18x1.5

Outlet8 [0.315] 30 [1.181] M6 12 [0.462] 26 [1.024] M5 M14x1.5 9/16–18UNF–2B 3/8 Gas (BSPP)

Inlet

13 [0.512] 30 [1.181] M6 12 [0.462] 26 [1.024] M5 M18x1.5

Outlet8 [0.315] 30 [1.181] M6 12 [0.462] 26 [1.024] M5 M18x1.5 9/16–18UNF–2B 3/8 Gas (BSPP)

Inlet

13 [0.512] 30 [1.181] M6 12 [0.462] 26 [1.024] M5 M18x1.5

Outlet8 [0.315] 30 [1.181] M6 12 [0.462] 26 [1.024] M5 M18x1.5 9/16–18UNF–2B 3/8 Gas (BSPP)

3,2

3,8

4,3

¾–16UNF–2B

3/8 Gas (BSPP)

Outlet2,6¾–16UNF–2B¾–16UNF–2B¾–16UNF–2B¾–16UNF–2B

3/8 Gas (BSPP)

3/8 Gas (BSPP)

3/8 Gas (BSPP)

3/8 Gas (BSPP)

Inlet

13 [0.512] 30 [1.181] M6 12 [0.462] 26 [1.024] M5 M18x1.5

Outlet13 [0.512] 30 [1.181] M6 12 [0.462] 26 [1.024] M5 M18x1.5 9/16–18UNF–2B 3/8 Gas (BSPP)

6,0© Danfoss | February 2023

Ba

3/8 Gas (BSPP)

BC320173499791en-000203 | 33

Technical Information
GearMe Aluminum Group 0 and Group 1 Pump
Product Options
Dimensions of Group 1 pump ports (continued)
Port typePort dimension

B
a

C
b

c

g

h

i

D

E

F

d

e

f

¾–16UNF–2B

3/8 Gas (BSPP)

Inlet

13 [0.512] 30 [1.181] M6 12 [0.462] 26 [1.024] M5 M18x1.5

Outlet13 [0.512] 30 [1.181] M6 12 [0.462] 26 [1.024] M5 M18x1.5 9/16–18UNF–2B 3/8 Gas (BSPP)

Inlet

13 [0.512] 30 [1.181] M6 12 [0.462] 26 [1.024] M5 M18x1.5

Outlet13 [0.512] 30 [1.181] M6 12 [0.462] 26 [1.024] M5 M18x1.5 9/16–18UNF–2B 3/8 Gas (BSPP)

Inlet

13 [0.512] 30 [1.181] M6 12 [0.462] 26 [1.024] M5 M18x1.5

Outlet13 [0.512] 30 [1.181] M6 12 [0.462] 26 [1.024] M5 M18x1.5 9/16–18UNF–2B 3/8 Gas (BSPP)

7,8

010

012

¾–16UNF–2B¾–16UNF–2B

3/8 Gas (BSPP)

3/8 Gas (BSPP)

SNP1IN
Danfoss offers an optional integral relief valve integrated in the rear cover. It is drained internally anddirects all flow from the pump outlet to the inlet when the outlet pressure reaches the valve setting.

C Caution
When the relief valve is operating in bypass condition, rapid heat generation occurs. If this bypass
condition continues, the pump prematurely fails. The reason for this is that it is a rule, not an exception.
Valve performance graph

34 | © Danfoss | February 2023

BC320173499791en-000203

Technical Information
GearMe Aluminum Group 0 and Group 1 Pump
Product Options
Dimensions

For configuration 06 (SAE A-A) dimension B and V have to be increased 4.5 mm [0.177 in].
Integral relief valve and covers dimensions
Type (displacement)
Dimensions mm
[in]

1,2

1,7

2,2

2,6

3,2

3,8

4,3

6,0

7,8

010

012

97
99
101
103
105
107
113.5 120
129
137
B 95.5[3.760] [3.819] [3.989] [3.976] [4.055] [4.134] [4.213] [4.468] [4.724] [5.079] [5.394]
86.5
88.5
90.5
92.5
94.5
96.5
103.0 109.5 118.5 126.5
V 85.0[3.346] [3.406] [3.484] [3.563] [3.642] [3.720] [3.799] [4.055] [4.311] [4.665] [4.980]

Variant codes for ordering integral relief valves
These tables detail the various codes for ordering integral relief valves:
A

B

C D

E

F

G

H

I

/

© Danfoss | February 2023

J

K L

M
/

Code

Pump speed for RV setting
min-1 (rpm)A

Not defined

C

500

E

1000

F

1250

G

1500

K

2000

I

2250

L

2500

M

2800

N

3000

O

3250

N O

● ● ●

BC320173499791en-000203 | 35

Technical Information
GearMe Aluminum Group 0 and Group 1 Pump
Product Options
Code

Pressure setting
bar [psi]A

No setting

B

No valveC

18 [261]D

25 [363]E

30 [435]F

35 [508]G

40 [580]K

50 [725]L

60 [870]M

70 [1015]

N

80 [1160]

O

90 [1305]P

100 [1450]

Q

110 [1595]R

120 [1740]

S

130 [1885]

T

140 [2030]U

160 [2320]

V

170 [2465]W

180 [2611]

X

210 [3045]Y

240 [3480]

Z

250 [3626]

Integral relief valve schematic
Valve schematic

36 | © Danfoss | February 2023

BC320173499791en-000203

Technical Information
GearMe Aluminum Group 0 and Group 1 Pump
Dimensions
SNP1NN - 01BA and 01DA
This drawing shows the standard porting for 01BA and 01DA. Available in Series SNP1NN only.
01BA

01DA
B max

68 ±0.25 [2.68 ±0.010]

00+0.0059
5.5 +0.15-0.25 [0.217-0.0098]
0052.4 [2.06]

Spline:Z=15 M=0.75 alfa=30°
Circular tooth thickness:
1.028-1.068 [0.04 0-0.042]
Internal spline dia:
9.8-10 [0.386-0.394]

69.4 [2.73] max

Ø 0.75 [0.0295] X

A-A
2.41-0.025 [0.0949-0.0098

74.5 [2.93] max

26.2 [1.03]
Ø 7.2 - 8 [0.283-0.315]

D/d ±0.20 [0.008]

4.5 [0.177]
Distance fromfront flange
to shoulder

Ø 11.9 -0.110 [0.469-0.004C/c
E/e(min full thd 10 [0.394] deep)(71.9 [2.83]

88.1 [3.47] max

M7-6g

A

A

14 [0.551]

body width

45.7 [1.8]

16.5 [0.65]

21.5 [0.846](34.3 [1.35] max)

5.2 [0.205] Distance from front flange
to cone reference diameterØ 9.82 [0.387]
Cone reference diameter

10.8 ±0.50 [0.425 ±0.020]

X

14.4 [0.583]

4.2 [0.165]
Pilot width-0.020Recommended
tightening
torque: 7-12 Nm

A ±0.50 [0.020](53.8 [2.12] max)

-0.0008

1:8

Ø 25.4 -0.041 [1.0-0.0016]29 [1.14]
12.4 [0.488]]]

SNP1NN – 01BA and 01DA dimensions
Frame size
Dimension

Inlet/Outlet

1,2

1,7

2,2

2,6

3,2

3,8

4,3

6,0

7,8

A

37.75
[1.486]38.5[1.516]39.5[1.555]40.5[1.634]41.5[1.634]42.5[1.673]43.5[1.713]46.75[1.841]50.0[1.969]B

79.5[3.130]81.0[3.189]83.0[3.268]85.0[3.346]87.0[3.425]89.0[3.504]91.0[3.583]

97.5[3.839]104.0[4.094]C/c

12 [0.472]

D/d

26 [1.024]

E/e

M5

Model code examples and maximum shaft torque
Flange/drive gear

Model code example

Maximum shaft torque

01BA

SNP1NN/3,8RN01BAP1C2C2NNNN/NNNNN

25 N•m [221 lb•in]

01DA

SNP1NN/6,0LN01DAP1C2C2NNNN/NNNNN

35 N•m [310 lb•in]

For further details on ordering, see Model code.

© Danfoss | February 2023

BC320173499791en-000203 | 37

Technical Information
GearMe Aluminum Group 0 and Group 1 Pump
Dimensions
SKP1NN – 02BB and 02FA
This drawing shows the standard porting for 02BB and 02FA. Available in Series SKP1NN only.
02BB

02FA

B max
35 [1.378]
8.0 [0.315] Distance from front flange
to cone reference diameter

Recommended
tightening
torque: 10-16 Nm

A ±0.50 [±0.02]

1:8

X

C/c
(min full thd 10 mm[0.394] deep)

48.5 [1.909]0]
3.0 -0.030[0.1180-0.001

31.5 [1.240]
8.3 [0.327]
Distance from front
flange to shoulder+0.010
7.5 +0.25]-0.15 [0.295 -0.006

11.7 [0.461]

BB

56.0 [2.205]
70.9 [2.791] max

B-BØ 0.75 [0.0295] X

A-AØ6.7-7.5[0.264-0.295]

D/d ±0.20 [±0.008]
E/e(73.0 [2.874])(56.1 [2.209] max)

88.2 [3.472] max

Ø13.95 [0.549]
Cone reference diameterM10x1-6g

10.8 ±0.50 [0.425 ±0.020]-0.000830.0 -0.020]-0.041 [1.181 -0.0016

AA

68.0 ±0.25[2.677 ±0.010 ]body width

M10 x 1-6g

16.5 [0.650]

74.5 [2.933] max

15.75 [0.620]

24.5 [0.965]

Recommended
tightening
torque: 10-16 Nm(32.1 [1.264] max)

7.0 [0.276]
Pilot width+0.0
12.0 +0.0]-0.018 [0.472 -0.001

15.5 [0.610]

+0.05

+0.0

+0.0

3.0-0.030 [0.118 -0.001]+0.002

13.2 -0.20 [0.520 -0.008]

SKP1NN – 02BB and 02FA dimensions
Frame size
Dimension

1,2

1,7

2,2

2,6

3,2

3,8

4,3

6,0

7,8

010

012

A

37.75 38.5
39.5
40.5
41.5
42.5
43.5
46.75 50.0
54.5
58.5
[1.486] [1.516] [1.555] [1.634] [1.634] [1.673] [1.713] [1.841] [1.969] [2.146] [2.303]

B

79.5
81.0
83.0
85.0
87.0
89.0
91.0
97.5
104.0 113.0 121.0[3.130] [3.189] [3.268] [3.346] [3.425] [3.504] [3.583] [3.839] [4.094] [4.449] [4.764]

Inlet/Outlet C/c

12 [0.472]

D/d 26 [1.024]
E/e

M5

Model code examples and maximum shaft torque
Flange/drive gear

Model code example

Maximum shaft torque

02BB

SKP1NN/6,0RN02BBP1C2C2NNNN/NNNNN

50 N•m [442 lb•in]

02FA

SKP1NN/ 2,2LN02FAP1C2C2NNNN/NNNNN

24 N•m [212 lb•in]

For further details on ordering, see Model code.

38 | © Danfoss | February 2023

BC320173499791en-000203

Technical Information
GearMe Aluminum Group 0 and Group 1 Pump
Dimensions
SNP1NN – 03CA
This drawing shows the standard porting for 03CA.

03CA
B ±1.0 [±0.039]+0.0408.5 [0.335] max

A

±0.50
[±0.020]63.0 ±0.25[2.48 ±0.01 ]body width

0.8 -0.30

4.8 ±0.10[0.189 ±0.004 ]40.0 [1.575]
29.65 [1.167]+0.001

5.0 -0.080 [0.197 -0.003]

C/c+0.02010.8 ±0.50 [0.425 ±0.020 ]-0.025-0.00132.0 -0.050 [1.260 -0.002]

22.0 [0.866]

8.5 [0.335]

OR 28.30 x 1.78

74.5 [2.933] max

10.35 [0.407]

X+0.016[0.031 -0.012]

22.75 [0.896] min

7.0 [0.276]
Pilot width

2.5 [0.098]
2.0 [0.079]

Ø 0.4 [0.016] X

Ø8.5-9.0 [0.335-0.354]
40.0 [1.575]

SNP1NN – 03CA dimensions
Frame size

1,2

1,7

2,2

2,6

3,2

3,8

4,3

6,0

7,8

A

37.75
[1.486]38.5[1.516]39.5[1.555]40.5[1.634]41.5[1.634]42.5[1.673]43.5[1.713]46.75[1.841]50[1.969]B

70[2.756]71.5[2.815]73.5[2.894]75.5[2.972]

77.5[3.051]

79.5[3.130]81.5[3.209]88.0[3.465]94.5[3.720]Inlet

C

M18 x 1.5 THD 12 [0.472] deep

Outletc

M14 x 1.5, THD 12 [0.472] deep

Dimension

M18 x 1.5, THD 12 [0.472] deep

Model code examples and maximum shaft torque
Flange/drive gear

Model code example

Maximum shaft torque

03CA

SNP1NN/1,7RN03CA03D5D3NNNN/NNNNN

14 N•m [124 lb•in]

For further details ordering, see Model code.

© Danfoss | February 2023

BC320173499791en-000203 | 39

Technical Information
GearMe Aluminum Group 0 and Group 1 Pump
Dimensions
SKP1NN – 06GA and 06SA
This drawing shows the standard porting for 06GA and 06SA. Available in Series SKP1NN only.

06GA

06SA
B max

27.0 [1.063]

7.9 [0.311]Distance from front
flange to shoulder
6.0 [0.236]
Pilot width19.1 [0.752]

103.4 [4.071] max

27.0 [1.063]
Distance from front
flange to shoulder

82.55 [3.258]

A

7.9 [0.311]

R 32.1 [1.26] max±0.50 [0.020]

19.1 [0.752]

8.0 [0.315]

A-A

Straight thread
O-Ring boss

0012.344 -0.127 [0.486-0.05 ]C/c

74.5 [2.933] max

80.2 [3.157] max

012.7 -0.025[0.5000-0.001]

10.8 ±0.50 [0.425 ±0.020 ]050.8-0.050[2.00-0.002 ]A

10.2-10.8 [.402-.425]

15.6 [0.614]

A

68.0 ±0.25 [2.677 ±0.010 ]body width

Splined:SAE J498-9T-20/40DP
Flat root side fit
Circular tooth thickness:
0.127mm [0.005]
less than class 1 fit

Ø 0.75 [0.030] X

13.94-14.20 [0.549-0.559]

00

3.2 -0.025 [0.126 -0.126 ]SKP1NN – 06GA and 06SA dimensions
Frame size
Dimension

1,2

1,7

2,2

2,6

3,2

3,8

4,3

6,0

7,8

010

012

A 42.25
43
44
45.0
46.0
47
48
51.25
54.5
59
63.5
[1.663] [1.693] [1.732] [1.772] [1.811] [1.850] [1.890] [2.018] [2.146] [2.323] [2.50]
B 84
85.5
87.5
89.5
91.5
93.5
95.5
102
108.5
117.5
125.5
[3.307] [3.366] [3.445] [3.524] [3.602] [3.681] [3.760] [4.016] [4.272] [4.626] [4.941]

Inlet

C ¾–16UNF–2B, THD 14.3 [0.563] deep

Outletc

9/16–18UNF–2B, THD 12.7 [0.500] deep

Flange/drive gear

Model code example

Maximum shaft torque

06GA

SKP1NN/3,2RN06GAP1E4E3NNNN/NNNNN

32 N•m [283 lb•in]

06SA

SKP1NN/012LN06SAP1E4E3NNNN/NNNNN

34 N•m [301 lb•in]

For further details on ordering, see Model code.

40 | © Danfoss | February 2023

BC320173499791en-000203

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© Danfoss | February 2023

BC320173499791en-000203