Technical Information

GearMeAluminum Group 2 Pump

www.danfoss.com

Technical Information
GearMe Aluminum Group 2 Pump

Revision history

2 | © Danfoss | February 2023

Table of revisions
Date

ChangedRev

February 2023

Fixed typo

0105

January 2023

Renamed product0104

April 2021

Minor revisions to product codes, illustrations

0103

November 2019

Corrected Product Codes

0102

October 2019

First edition

0101

BC319580185580en-000105

Technical Information
GearMe Aluminum Group 2 Pump
Contents
General information
Overview..............................................................................................................................................................................................5
Pump design...................................................................................................................................................................................... 8
Features and benefits..................................................................................................................................................................... 9
Pump displacements.................................................................................................................................................................... 10
Gear pump in circuit..................................................................................................................................................................... 10
Technical Data
Technical data................................................................................................................................................................................. 11
Product CodeModel code.......................................................................................................................................................................................12
A Family........................................................................................................................................................................................12
B Displacement..........................................................................................................................................................................12
C Rotation....................................................................................................................................................................................12
D Project version.......................................................................................................................................................................12
E Mounting Flange...................................................................................................................................................................13
F Gear drive.................................................................................................................................................................................13
G Rear Cover............................................................................................................................................................................... 13
H Inlet size; I Outlet size..........................................................................................................................................................14
J Ports positions & Special body..........................................................................................................................................15
K Seals........................................................................................................................................................................................... 15
L Screws........................................................................................................................................................................................15
M Set valve.................................................................................................................................................................................. 15
N Type mark................................................................................................................................................................................16
O Position.................................................................................................................................................................................... 16
Determination of nominal pump sizes
Based on SI units / Based on US units.....................................................................................................................................17
System Requirements
Pressure............................................................................................................................................................................................. 18
Speed..................................................................................................................................................................................................18
Hydraulic fluids............................................................................................................................................................................... 19
Temperature and viscosity......................................................................................................................................................... 19
Filtration............................................................................................................................................................................................ 20
Filters.............................................................................................................................................................................................20
Selecting a filter.........................................................................................................................................................................20
Reservoir...................................................................................................................................................................................... 20
Line sizing......................................................................................................................................................................................... 21
Pump drive....................................................................................................................................................................................... 21
Pump drive data form.................................................................................................................................................................. 22
Pump life........................................................................................................................................................................................... 23
Sound levels.....................................................................................................................................................................................23
Pump Performance
Performance graphs......................................................................................................................................................................25
Product Options
Flange, shaft and ports configurations.................................................................................................................................. 27
Shaft options....................................................................................................................................................................................28
Pumps with integral relief valve - SNP2EN and SNP2IN...................................................................................................29
Variant codes for ordering integral relief valves.................................................................................................................30
Integral relief valve covers SNP2IN.......................................................................................................................................... 31
Outrigger bearing.......................................................................................................................................................................... 32
Outrigger bearing assembly...................................................................................................................................................... 33
Auxillary mounting pads............................................................................................................................................................. 34
Pump ports.......................................................................................................................................................................................36
Dimensions
SNP2NN - 01DA, 01FA and 01BA.............................................................................................................................................. 37
SNP2NN - 02DB and 02AA.......................................................................................................................................................... 38© Danfoss | February 2023

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Technical Information
GearMe Aluminum Group 2 Pump
Contents
SNP2NN - 03CA............................................................................................................................................................................... 39
SNP2NN - 04/05DB and 04/05AA............................................................................................................................................. 40
SKP2NN - 06SB and SNP2NN - 06SA, 06GA...........................................................................................................................41
SNP2NN - 06SA..BxBxBxYY../...................................................................................................................................................... 42
SNP2NN - A9BJ................................................................................................................................................................................ 43

4 | © Danfoss | February 2023

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Technical Information
GearMe Aluminum Group 2 Pump
General information
Overview
Danfoss aluminum gear pumps are ideal for a wide range of applications for:
Small vehicles, such as aerial lifts, greens and fairway mowers and electric forklifts. These needs areserved by the pumps in the SKP2NN range with integral valves and pressure balanced design for highefficiency, and extruded aluminum bodies for high strength.
• Medium and large off-highway vehicles, like tractors, backhoe loaders, dumpers, and•telescopic handlers, we offer the SNP2NN.
Many combinations of the pumps mentioned are available as multiple units made to fit any need Danfoss
provides standard pumps for use in industrial applications, including power packs.
Group 2 gear pumps representatives:
SKP2NN 06SB

© Danfoss | February 2023

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Technical Information
GearMe Aluminum Group 2 Pump
General information
SNP2NN 02AA

6 | © Danfoss | February 2023

BC319580185580en-000105

Technical Information
GearMe Aluminum Group 2 Pump
General information
SNP2NN 04DA

© Danfoss | February 2023

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Technical Information
GearMe Aluminum Group 2 Pump
General information
SNP2NN 03CA

Pump design
Danfoss high performance gear pumps are fixed displacement pumps which consist of the pumphousing, drive gear, driven gear, DU bushings, rear cover and front flange, shaft seal and inner/ outerseals, as shown in the following image. The pressure balanced design of the pumps provides highefficiency for the entire series.
The SNP2NN pump accommodates SAE 9-tooth and the SKP2NN is a special version of the SNP2NN. It is
designed to accommodate an SAE 11T 16/32 DP tooth splined shaft for higher torque applications.

8 | © Danfoss | February 2023

BC319580185580en-000105

Technical Information
GearMe Aluminum Group 2 Pump
General information
SNP2NN 06SA cut-away

Features and benefits

•
•
•
•
•
•
•
•

© Danfoss | February 2023

Wide range of displacements from 3.9 to 25.2 cm3/rev [from 0.24 to 1.54 in3/rev]
Continuous pressure rating up to 250 bar [3625 psi]
Speeds up to 4000 min-1 (rpm)
SAE, DIN and European standard mounting flanges and shafts
Compact, lightweight
Multiple pump configurations in combination with SNP1NN, SNP2NN, SKP2NN and SNP3NN
Quiet operation
Available with integral relief valve

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Technical Information
GearMe Aluminum Group 2 Pump
General information
Pump displacements
Quick reference chart for pump displacements vs. rated pressure

Gear pump in circuit
This typical circuit shows an SNP2NN gear pump driving an SNM2NN gear motor through a systempressure control valve. The system pressure control valve regulates motor speed based on input from thewax capsule thermal sensor. Discharge from the gear motor is then returned to the reservoir through aheat exchanger, which is equipped with a bypass check valve. Oil in this circuit is cleaned by a return line
filter placed between the heat exchanger and the reservoir. A suction screen in the reservoir covers theinlet line.
Hydraulic schematic example
RESER
VOIR
BYPASS CHECKHEAT EXCHANGERSUCTION SCREENFILTER

WAX CAPSULE
THERMAL SENSORSYSTEM PRESSURE
CONTROLVALVEGEAR PUMPGEAR MO
TOR

PUMP INLET

10 | © Danfoss | February 2023

PUMP OUTPUT

CONTROLLED FLOWRETURN FLOWPILOT FLOW

BC319580185580en-000105

Technical Information
GearMe Aluminum Group 2 Pump
Technical Data
Technical data
Frame size
Displacement

4,0
cm3/rev [in3/
rev]

6,0

8,0

011

014

017

019

022

025

3.9
6.0
8.4
10.8
14.4
16.8
19.2
22.8
25.2
[0.24] [0.37] [0.51] [0.66] [0.88] [1.02] [1.17] [1.39] [1.54]

SNP2NN
Peak pressure

bar [psi]

280
280
280
280
280
280
230
200
175
[4060] [4060] [4060] [4060] [4060] [4060] [3335] [2900] [2638]

Rated pressure

250
250
250
250
250
250
210
180
160
[3625] [3625] [3625] [3625] [3625] [3625] [3045] [2610] [2320]

Minimum speed at 0-100 min-1 (rpm)
bar

600

600

600

500

500

500

500

500

500

Minimum speed at100-180 bar

1200

1200

1000

800

750

750

700

700

700

Min. speed at 180 bar to
rated pressure

1400

1400

1400

1200

1000

1000

1000

800

–

Maximum speed

4000

4000

4000

4000

3500

3000

3000

3000

3000

SKP2NN
Peak pressure

bar [psi]

280
280
280
280
280
280
260
230
200
[4060] [4060] [4060] [4060] [4060] [4060] [3770] [3335] [2900]

Rated pressure

250
250
250
250
250
250
240
210
190
[3625] [3625] [3625] [3625] [3625] [3625] [3480] [3045] [2755]

Minimum speed at 0-100 min-1 (rpm)
bar

600

600

600

500

500

500

500

500

500

Minimum speed at100-180 bar

1200

1200

1000

800

750

750

700

700

700

Min. speed at 180 bar to
rated pressure

1400

1400

1400

1200

1000

1000

1000

800

800

Maximum speed

4000

4000

4000

4000

3500

3000

3000

3000

3000

3.0
[6.5]

3.1
[6.7]

3.2
[7.0]

3.3
[7.3]

Both (SNP2NN, SKP2NN)
Weightkg [lb]

2.3
[5.1]

2.4
[5.3]

2.5
[5.5]

2.7
[5.8]

2.9
[6.3]

Moment of inertia ofrotating components

x 10-6kg•m2 [x 10-6lb•ft2]

21.3
[505]

26.5
[629]

32.4
[769]

38.4
[911]

47.3
53.3
59.2
68.1
74.1
[1122] [1265] [1405] [1616] [1758]

Theoretical flow at
maximum speedl/min [US gal/
min]

15.6
[4.1]

24.0
[6.3]

33.6
[8.9]

43.2
50.4
50.4
57.6
68.4
75.6
[11.4] [13.3] [13.3] [15.2] [18.0] [20.0]

1 kg•m2 = 23.68 lb•ft2

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

© Danfoss | February 2023

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Technical Information
GearMe Aluminum Group 2 Pump
Product CodeModel code
A FamilyAB● ● ● ● ● ●

C D

E

F

G

H

I

J

K L

/

M

N O

/

SNP2NN

Std Group 2 Pump

SNP2EN

Std Group 2 Pump + External Drain RV

SNP2IN

Std Group 2 Pump + Internal Drain RV

SNC2NN

StdGroup 2 Pump Inlet & Outlet in the CoverSKP2NNHighTorque Group 2 PumpSKP2ENHighTorque Group 2 Pump + Ext.Drain RVSKP2INHighTorque Group 2 Pump + Int.Drain RV

SKC2NNHighTorque Group 2 Pump Inlet & Outlet on CoverB Displacement
A

B

C

D

E

F

G

H

I

L M N

O

P Q R

I

L M N

O

P Q R

● ● ●
4,0

Displacement 3,9 cc

6,0

Displacement 6,0cc

8,0Displacement 8,4 cc011

Displacement 10,8 cc014

Displacement 14,4 cc

017

Displacement 16,8 cc019

Displacement 19,2 cc022

Displacement 22,8 cc025

Displacement 25,2 cc

Other frame sizes and displacements are available upon request.
C Rotation
A

B

C

D

E

F

G

H

F

G

H

●
R

Right (Clockwise)

L

Left (Counterclockwise)

D Project version
A

B
/

N

12 | © Danfoss | February 2023

C D
●

E

I

J

K L

M

N O

/

Standard gear pump

BC319580185580en-000105

Technical Information
GearMe Aluminum Group 2 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

/

Code

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

pilot Ø36,5+4 holes

02

pilot Ø80+4 holes

03

pilot Ø52+O-ring+4 holes through body04

pilot Ø50+2 holes through body

A4

pilotØ50+2 holes through body+seal on pilot

05

pilot Ø50+2 holes through body

06

SAE A pilot Ø82,55+2 holes

A6

SAE A pilot Ø82,55+2 holes+seal on pilot

09

pilot Ø52,34+2 threaded holes

91

Outrig. Type 01+taper shaft 1:8-M12x1,25-Key4 - Outrigger bearing

94

Outrig. Type 04+taper shaft 1:5-M12x1,25-Key3 Outrigger bearing

9A

Outrig. Type 01+taper shaft 1:8-M12x1,25-Key3.2 - Outrigger bearing

9F

Outrig. Type 02+taper shaft 1:5-M14x1,5Key4 - Outrigger bearing

9H

Outrig. Type 06 + taper shaft 1:8-M12x1,25-Key4

9J

Outrig. Type 06 with parallel shaft Ø3/4 (Ø19.05 mm) - Outrigger bearing

F Gear drive
A

B

C D

E

F

G

H

I

J

K L

● ●

/
AA

Taper 1:5-M12x1,25-Key 3

AB

Taper 1:5-M12x1,5-Key 3

BA

Taper 1:8-M12x1,25-Key 4

BB

Taper 1:8-M12x1,25-Key 4/3,2CATang 8x17,8xL6,5 FR03

DA

Spline DIN 5482 B17x14-L10

DB

Spline DIN 5482 B17x14-L14

FA

Parallel Ø15-L30+Key 4x25

GA

Parallel SAE Ø15,875-L23,8-Key 4x18

GB

Parallel SAE Ø15,875-L50,8-Key 4x40

SA

Spline SAE J498-9T-16/32

SB

Spline SAE J498-11T-16/32 (Only for SKP2)/

G Rear CoverA

B/© Danfoss | February 2023

C D

E

F

G
● ●

H

I

J

K L
/

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Technical Information
GearMe Aluminum Group 2 Pump
Product CodeC1

Cover pump front BSP ports : Inlet 3/4 Gas ; Outlet 1/2 Gas

C6

Cover pump front SAE Thred ports:In.1-1/16-12UN;Out.7/8-14UNF

C7

Cover pump front SAE Thred ports:In.3/4-16UNF-2B;Out.3/4-16UNF-2B

D1

Cover pump with Outlet port 1/2 Gas

D6

Cover pump with Outlet port 7/8-14UNF-2B

E1

Cover pump with relief valve with external drain 3/8 Gas

E2

Cover pump for RV with ext. drain M12x1.5-CCW rot.idle side;CW rot. drive side

E3

Cover pump for RV with ext. drain 3/8 Gas with M5 Holes

E4

Cover pump for RV with ext. drain 3/4-16UNF-2B with M5 Holes

E6

Cover pump for RV with ext. drain 3/4-16UNF-2B

I1

Cover pump for RV with int. drain

I3

Cover pump for RV with int. drain with M5 Holes

P1

Standard cover for pump

P3

Standard cover for pump with M5 HolesH Inlet size; I Outlet size
AB/

14 | © Danfoss | February 2023

B5

15x35xM6

B6

15x40xM6

B7

20x40xM6C313,5x30xM6C513,5x40xM8

C720x40xM8

D5

M18x1,5

D7

M22x1,5E4

3/4-16UNF

E5

7/8-14UNF

E6

1-1/16-12UN

F3

3/8 GAS

F4

1/2 GASF5

3/4 GAS

H5

M18x1,5-ISO6149

H7

M22x1,5-ISO6149

H8

M27x2-ISO6149

H9

M33x2-ISO6149

C D

E

F

G

H

I

● ● ● ●

J

K L

M

N O

/

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Technical Information
GearMe Aluminum Group 2 Pump
Product CodeM1

12x17, 48x38, 1xM6

M2

12x17, 48x38, 1xM8

M318,5x17, 48x38, 1xM8

MB12x38, 1x17, 48xM8 (=)

MC

18,5x47, 63x22, 23xM6 (=)

MD

18,5x47, 63x22, 23xM8 (=)

ME

18,5x47, 63x22, 23xM10 (=)

MG

25/20x52, 37x26, 19xM19 (=)

NN

Without outlet port

J Ports positions & Special body
A

B

C D

E

F

G

H

I

J

K L

● ●

/
NN

Std from catalogue

YY

PortBx-Bx with flange SAE-A;off-set to rear cover to install fitting screws

ZZ

Port Bx-Bx in the center of the body - Option

M

N O

M

N O

M

N O

M

N O

/

K Seals
A

B

C D

E

F

G

H

I

J

K L
●

/
N

Standard NBR seals

B

VITON seals (Only for SNP2 pumps)

D

VITON shaft seal with dust lip/

L Screws
A

B

C D

E

F

G

H

I

J

K L
●

/
N

Std burnished screws

A

Zinc plated screws

B

Geomet screws/

M Set valve
A

B

C D

E

F

G

H

/
NNN

No valve

V*

Integral relief valve pressure setting

I

J

K L
/

● ● ●

* For details see Variant codes for ordering integral relief valves on page 30© Danfoss | February 2023

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Technical Information
GearMe Aluminum Group 2 Pump
Product CodeN 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 Position
A

B

C D

E

/

16 | © 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
●

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Technical Information
GearMe Aluminum Group 2 Pump
Determination of nominal pump sizes
Based on SI units / Based on US units
Use these formulae to determine the nominal pump size for a specific application.

Based on SI units

Based on US units

Q =Vg • n • η v
1000

l/min

Q =

Vg • n • ηv
231

[US gal/min]

Input torque M =Vg • ∆p
20 • π • ηm

N•m

M =

Vg • ∆p2 • π • ηm[lbf•in]M•nQ • ∆pM•n

Q • ∆p

Input power P =

9550

=

600 • ηtkW

P =63.025=1714 • ηt[hp]

Variables: SI units [US units]© 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)

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Technical Information
GearMe Aluminum Group 2 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
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 following illustration shows
peak pressure in relation to rated pressure and reaction time (100 ms maximum).
Time versus pressure
Peak pressure

Pressure

Rated pressure

Reaction time (100 ms max)Time

Rated pressure
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
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 can be expected. The minimum
speed increases as operating pressure increases. When operating under higher pressures, a higher
minimum speed must be maintained, as illustrated to the right.

18 | © Danfoss | February 2023

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GearMe Aluminum Group 2 Pump
System Requirements
Speed versus pressure
Rated pressure

Pressure

P2

Operating
Envelope

P1

0

0

N1

N2

N3

Max

Speed
Where:
N1 = Minimum spe ed at 100 bar
N2 = Minimum s pe ed at 180 bar
N3 = Minimum s pe ed at rated p ressu re

Hydraulic fluids
Ratings and data for SNP2NN and SKP2NN 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 / mineral-based
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© Danfoss | February 2023

BC319580185580en-000105 | 19

Technical Information
GearMe Aluminum Group 2 Pump
System Requirements
Fluid viscosity
1600 [7273]

Maximum (cold start)
Recommended range

mm2/s [SUS]

12-100 [66-456]
10 [60]

Minimum

Temperature (with standard NBR seals)-20 [-4]

Minimum (cold start)
Maximum continuous°C [°F]80 [176]
90 [194]

Peak (intermittent)

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 b10 = 2

βx ratio (pressure or return filtration)β10 = 75

Recommended inlet screen size

100-125 mm [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.
20 | © Danfoss | February 2023

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GearMe Aluminum Group 2 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 2 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

BC319580185580en-000105 | 21

Technical Information
GearMe Aluminum Group 2 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. Contact Danfoss if
continuously applied external radial or thrust loads occur.
Photocopy this page and fax the complete form to your Danfoss representative for an assistance inapplying pumps with belt or gear drive.
Pump drive data form
Optimal radial load position
90o

90o

a

a

Inlet port
180

o

0

Inlet port
180o

o

o

0

P

270o

270o
a

a

dw

dw

Application data
Item

Value

Unit

Pump displacement

cm3/rev [in3/rev]

Rated system pressure

bar psi

Relief 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)V notch

Belt tension (gear drive only)

22 | © Danfoss | February 2023

PN lbf

BC319580185580en-000105

Technical Information
GearMe Aluminum Group 2 Pump
System Requirements
Application data (continued)
Item

Value

Unit

Angular orientation of gear or belt to inlet portadegreePitch diameter of gear or pulleydw

mm inDistance 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
Fluid power systems are inherent generators of noise. As with many high power density devices, noise isan unwanted side affect. However, there are many techniques available to minimize noise from fluid
power systems. To apply these methods effectively, it is necessary to understand how the noise isgenerated and how it reaches the listener. The noise energy can be transmitted away from its source as
either fluid borne noise (pressure ripple) or as structure borne noise.
Pressure ripple is the result of the number of pumping elements (gear teeth) delivering oil to the outlet
and the pump’s ability to gradually change the volume of each pumping element from low to highpressure. In addition, the pressure ripple is affected by the compressibility of the oil as each pumping
element discharges into the outlet of the pump. Pressure pulsations will travel along the hydraulic lines
at the speed of sound (about 1400 m/s in oil) until affected by a change in the system such as 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 manner in which one circuit component responds to excitation depends on its size, form,
and manner in which it is mounted or supported. Because of this excitation, a system line may actually
have a greater noise level than the pump. To reduce this excitation, use flexible hoses in place of steel
plumbing. If steel plumbing must be used, clamping of lines is recommended. To minimize otherstructure borne noise, use flexible (rubber) mounts.
The accompanying graph shows typical sound pressure levels for SNP2NN pumps (with SAE A flange, andspline shaft in plug in drive) measured in dB (A) at 1 m [3.28 ft] from the unit in a semi anechoic chamber.
Anechoic levels can be estimated by subtracting 3 dB (A) from these values.
Contact your Danfoss representative for assistance with system noise control.

© Danfoss | February 2023

BC319580185580en-000105 | 23

Technical Information
GearMe Aluminum Group 2 Pump
System Requirements
Sound levels graphSound pressure level (dB(A) at 1m [3.3ft])

80

75

70

65

1800 rpm, 175 bar [2538 psi]
3000 rpm, 175 bar [2538 psi]
1800 rpm, 250 bar [3626 psi]
3000 rpm, 250 bar [3626 psi]

60

55
0

20

40

60

80

90

Displacement (cc/rev)

24 | © Danfoss | February 2023

BC319580185580en-000105

Technical Information
GearMe Aluminum Group 2 Pump
Pump Performance
Performance graphs
The graphs on the next pages provide typical output flow and input power for Group 2 pumps at various
working pressures. Data were taken using ISO VG46 petroleum /mineral based fluid at 50 °C (viscosity at
28 mm2/s [cSt]).
26

16
[6.5]

SNP2NN, SKP2NN/4,0

[6.0]

8

6

r

0
25

[1.0] 4

ba

ar
50 b

[10]

[6]

[2.0] 8

4

[4]

1000
2000
3000
Speed min-1 (rpm)4000[0.5] 200

SNP2NN, SKP2NN/8,0[11]

15 [20]
r

0
25

10

ba

10

r
0 ba

[2]

5

[1]
0

[10]

15
5

[15]

1000

2000

3000

Speed min-1 (rpm)

[7]

[3]

0

Power kW [HP]
[2]
0

4000

SNP2NN, SKP2NN/011

40
35

25

[30]
20

20

10

[2]

0

[4]

50

[4] 15

[1]
4000

1000
2000
3000
Speed min-1 (rpm)

[6]
[5]

[6]

2

[8] 30

[5]

r

a
100 b
0

[9]

[8]

4

[10]

Flow l/min [US gal/min][4] 15[3]© Danfoss | February 2023

Power kW [HP]

ar

ar
7b

20

0b

[5]

25

Flow l/min [US gal/min]

25

[10]

6

ar
100 b

[12] 45[8] 30

[14]
[12]

8

bbaarr115500

0

[13]

[6]

10

[1.0] 4

[2]

35

[7]

ba

ar

[9]

0

r

0
25

[1.5] 6100

12 [16]12[2.5] 10

2

0 bar

[3.0]

14

6 [8]

1
[0.5] 2

[3.5]

16

0b

[1.5]

8

[4.0]

18

ar

[2.0]

[4.5]

Power kW [HP]

[12]

20
[5.0]

7b

[2.5]

[5.5]

7b
ar
0b
ar

7b
ar
0b
ar

10

SNP2NN, SKP2NN/6,0

22

25

[3.0]

24

25

12

25

Flow l/min [US gal/min][3.5]

Flow l/min [US gal/min]

14

Power kW [HP]

[4.0]

5

0

1000

aarr
0 bb
25
bar
150

15 [20]

bar
100

5

2000
Speed

[25]

3000

10

[15]
[10]

4000

[5]
0

min-1 (rpm)BC319580185580en-000105 | 25

Technical Information
GearMe Aluminum Group 2 Pump
Pump Performance[13] 50

0

0

500

[3]

[10]

[2]

[5]

[1]

0

0

5

1500

2500

Speed

min-1 (rpm)

3500

60
55

[13] 50[12] 45
[11]

40
7b

[8] 30[6]

25

25[5] 20

[2]

ar

150

10

[1]

0

0

15 [20]

bar

10
ar

100 b

5
1000

[35]

[30]
20 [25]0b

21[4] 15[3]30 [40]

21

[7]

[45]

0b

[9] 35

ar

ar

[10]

5

[15]
[10]
[5]

0
3000

2000

ar

1000
2000
Speed min-1 (rpm)

[15]
[10]

5
3000

[5]
0

70

SNP2NN, SKP2NN/022[16] 60
[15]
[14]

55

[13] 50[12] 45
[11]

[10]

40

[9] 35[8] 30
[7]
[6]

20

25

[5] 200
18[4] 15
[3]
[2]
[1]

24

bar
150
bar
100

10
5
0

r

ba

1000

2000

[35]
[30]

[25]
16 [20]12 [15]8 [10]
4 [5]
3000

0

0b

ar

Power kW [HP]

60

16

50

ar

[12]

7b

Flow l/min [US gal/min]

10

SNP2NN, SKP2NN/025[14][10] 40[8] 3030 [40]

[6]
20

20

[4]

0

15 [20]

bar

100 b

0

[25]

80

[18] 70[2][35]

Speed min-1 (rpm)Speed min (rpm)

[16]

150

5

0

-1

[20]

2

[17] 65

Flow l/min [US gal/min]

[14]

20

ar

b
50

10

[18]

SNP2NN, SKP2NN/019
Power kW [HP]

[15]

20

[15]

0 bar

25

[30]

15 [20]
10

10

[5]

25

ar

5

[6]

[4] 15

bar

150

[7]

7b

25

10

[1]

r

a
0b

[25]

[8] 30Power kW [HP]

20

20

[2]

Flow l/min [US gal/min]

[35]
[30]

[4] 15[3]

25[9] 35

ar

[5]

25

40

0b

[6]

0b

[7]

ar

[8] 30[10]25
0 b 7 bar
ar

7b
ar

[9] 35[11]

Flow l/min [US gal/min]

40

25

Flow l/min [US gal/min][10]

Power kW [HP][11]

SNP2/SKP2
17cc
SNP2NN,SKP2NN/017[12] 45

SNP2NN, SKP2NN/014

18[12] 45

Power kW [HP][13] 50

160

bar

10

[20]
10

ar

100 b
0

1000

2000

[30]

3000

[10]
0

Speed min-1 (rpm)26 | © Danfoss | February 2023

BC319580185580en-000105

Technical Information
GearMe Aluminum Group 2 Pump
Product Options
Flange, shaft and ports configurations
Code© Danfoss | February 2023

Flange

Shaft

Ports

01BA

pilot Ø 36.5mm
[1.438in]European
01, 4-bolt

1:8 tapered

Europeanflanged, +pattern

01FA

pilot Ø 36.5mm
[1.438in]European
01, 4-bolt

Ø 15 mm [0.59in] parallel

Europeanflanged, +pattern01DA

pilot Ø 36.5mm
[1.438in]European
01, 4-bolt

Splined
9T - m 1.60
DIN 5482B17x14

Europeanflanged, +pattern

02AA

pilot Ø 80 mm[3.15 in]German
PTO, 4-bolt

1:5 tapered

German std, ×
pattern

02DB

pilot Ø 80 mm[3.15 in]German PTO,
4-boltSplined
9T - m 1.60
DIN 5482B17x14

German std, ×
pattern

03CA

Danfoss 03

Danfoss tang

German std, ×
pattern

04AA

pilot Ø 50 mm[1.969 in]German PTO,
2-bolt

1:5 tapered

German std, ×
pattern

04DB

pilot Ø 50 mm[1.969 in]German PTO,
2-boltSplined
9T - m 1.60
DIN 5482B17x14

German std, ×
patter

05AA

pilot Ø 50 mm[1.969 in]German PTO,
2-bolt

1:5 tapered

German std, ×
pattern

05DB

pilot Ø 50 mm[1.969 in]German PTO,
2-boltSplined
9T - m 1.60
DIN 5482B17x14

German std, ×
pattern

BC319580185580en-000105 | 27

Technical Information
GearMe Aluminum Group 2 Pump
Product Options
Code

Flange

Shaft

Ports

06GA

pilot Ø 82.55
mm[3.25 in]
SAE A, 2-boltØ 15.875 mm[0.625 in]parallelThreaded SAE
O-Ring boss

06SA

pilot Ø 82.55
mm[3.25 in]
SAE A, 2-bolt

9-teeth splined
SAE spline J
498-9T-16/32DP

Threaded SAE
O-Ring boss

06SB

pilot Ø 82.55
mm[3.25 in]
SAE A, 2-bolt

11-teethsplined
SAE spline J

Threaded SAE
O-Ring boss

Shaft options
Direction is viewed facing the shaft. Group 2 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 versus flange availability and torque capability
A

B

C D

E

F

G

H

I

J

K L

● ●

/
Shaft

M

N O

/

Mounting flange code with maximum torque in N•m [lbf•in]

Description

Code

01

02

03

04

05

06

Taper 1:5

AA–

140 [1239]–

140 [1239]

140 [1239]–

Taper 1:8

BA

150 [1328]

–

–

–

–

–

DIN spline B17x14DA

90 [797]

–

–

–

–

–

DIN spline B17x14

DB–

130 [1151]–

130 [1151]

130 [1151]–

SAE spline 9T 16/32p

SA

–

–

–

–

–

75 [646]

SAE spline 11T 16/32p

SB

–

–

–

–

–

150 [1328]

Parallel 15 mm[0.590 in]FA

90 [797]

–

–

–

–

–

Parallel 15.875 mm[0.625 in]

GA

–

–

–

–

–

80 [708]

Danfoss Tang

CA

–

–

70 [620]–––

Recommended mating splines for Group 2 splined output shafts should be in accordance with SAE J498
or DIN 5482. Danfoss external SAE splines are flat root side fit with circular tooth thickness reduced by
0.127 mm [0.005 in] in respect to class 1 fit. The external DIN splines have an offset increased by 0.1 mm[0.004 in.] These dimensions are modified in order to assure a clearance fit with the mating spline.
Other shaft options may exist. Contact your Danfoss representative for availability.

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.
28 | © Danfoss | February 2023

BC319580185580en-000105

Technical Information
GearMe Aluminum Group 2 Pump
Product Options
Pumps with integral relief valve - SNP2EN and SNP2IN
Group 2 pumps are offered with an optional integral relief valve in the rear cover . This valve can have aninternal (SNP2IN) or external (SNP2EN) drain. This valve opens directing all flow from the pump outlet tothe internal or external drain when the pressure at the outlet reaches the valve setting. This valve can beordered preset to the pressures shown in the table below. Valve performance curve, rear cover crosssection and schematics are shown below.

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.
When frequent operation is required, external drain option (SNP2EN) must be used.
Valve performance graph
bar

psi

With mineral oil @ 26 cSt

400
5000
300

4000
3000

200

2000
100

1000
0

0

Minimum valve setting

0

4

0

1

8
2

12
3

16
4

2 0 l/min
5

US gal/min

Integral relief valve cross-section

Inlet
Drain

© Danfoss | February 2023

BC319580185580en-000105 | 29

Technical Information
GearMe Aluminum Group 2 Pump
Product Options
Integral relief valve schematics

Where:
i = inleto = outlet
e = external drain
Variant codes for ordering integral relief valves
The following tables detail the various codes for ordering integral relief valves in L section of model code.
A

B

E

F

G

H

I

J

K L

M

S N P 2 E N

/

/

V ●

S N P 2

/

/

V ●

I

N

Code

Pump speed for RV settingA

Not definedC

500 min-1 (rpm)E1000 min-1 (rpm)F

1250 min-1 (rpm)G

1500 min-1 (rpm)K

2000 min-1 (rpm)I

2250 min-1 (rpm)L2500 min-1 (rpm)M

2800 min-1 (rpm)N

3000 min-1 (rpm)O3250 min-1 (rpm)A

30 | © Danfoss | February 2023

C D

B

C D

E

F

G

H

I

J

K L

N O

M

N O

S N P 2 E N

/

/

V

●

S N P 2

/

/

V

●

I

N

BC319580185580en-000105

Technical Information
GearMe Aluminum Group 2 Pump
Product Options
Code

Pressure settingA

No setting

B

No valveC

18 bar [261 psi]D

25 bar [363 psi]

E

30 bar [435 psi]

F

35 bar [508 psi]G

40 bar [580 psi]

K

50 bar [725 psi]L

60 bar [870 psi]

M

70 bar [1015 psi]N

80 bar [1160 psi]O

90 bar [1305 psi]

P

100 bar [1450 psi]

Q

110 bar [1595 psi]

R

120 bar [1740 psi]

S

130 bar [1885 psi]T

140 bar [2030 psi]

U

160 bar [2320 psi]V

170 bar [2465 psi]W

180 bar [2611 psi]X

210 bar [3046 psi]Y

240 bar [3480 psi]

Z

250 bar [3626 psi]

For pressures higher than 210 bar [3046 psi] and lower than 40 bar [580 psi] apply to your Danfoss
representative.

Integral relief valve covers SNP2IN

115.5 max
[4.547 max]

15.7 ±0.5[0.618 ±0.02]

B ±1.5 [±0.06]

93 max[3.66 max]

© Danfoss | February 2023

BC319580185580en-000105 | 31

Technical Information
GearMe Aluminum Group 2 Pump
Product Options
Dimensions of integral relief valve cover with SAE flange
Type

4,0

6,0

8,0

011

014

017

019

022

025

B
mm [in]110.0[4.33]

113.5[4.47]

117.5[4.63]

121.5[4.78]

127.5[5.02]

131.5[5.18]

135.5[5.33]

141.5[5.57]

145.5[5.73]

Outrigger bearing
An outrigger bearing is available for applications with high radial or thrust loads on the shaft. This option
is used primarily for applications with high shaft loads such as to belt or chain drives. The design utilizes
roller bearings in the front mounting flange. These bearings absorb the radial and thrust loads on theshaft so that the life of the pump is not affected. The use of roller bearings allows life to be described in
B10 hours.
Available configurations
Codes 9ADB, 9FDB, 94DB, 9HDB and 9JDB represent assembly (pump complete with outrigger
bearing).
A

B

C D

32 | © Danfoss | February 2023

E

F

G

H

I

J

K L

● ●

/

M

N O

/

Code

Shaft

Mounting flange

9A

Taper 1:8

European 4-bolts

9F

Taper 1:5

German PTO

94Taper 1:5

German 4-bolts

9H

Taper 1:8

SAE A

9J

Parallel

SAE A

BC319580185580en-000105

Technical Information
GearMe Aluminum Group 2 Pump
Product Options
Outrigger bearing assembly
Dimensions
mm [in]Outrigger bearing type 9A+0.15

9.5 - 0.35
+0.006[0.374 - 0.014 ]3.2 - 00.025
0[0.126 - 0.0010]+0.15

A ±0.50 [0.020]

43 - 0.15+0.006[1.693 - 0.006 ]Outrigger bearing type 94+0.15

B ±0.50 [0.020]

46.5 - 0.15

+0.006[1.831 - 0.006 ]Outrigger bearing type 9F
4 - 00.030[0.157- 00.0012 ]0

8 - 0.20[0.157- 00.0012]+0.10

34 - 0.10+0.004[1.339 - 0.004 ]© Danfoss | February 2023

44.22 - 45.88[1.741 - 1.806]

BC319580185580en-000105 | 33

Technical Information
GearMe Aluminum Group 2 Pump
Product Options
Outrigger bearing type9H

6 [0.236]+0.05

35 - 0.05+0.002[1.378 - 0.002 ]40.48 - 39.32[1.594 - 1.548]

Outrigger bearing type9J

020.900 - 21.125[0.823 - 0.832]

4.755 - 0.030
0[0.187 - 0.0012 ]019.05 - 0.033
0[0.75 - 0.0013]
6.5 - 8.5
[0.256 - 0.335]

C ±0.50 [0.020]
D max

+0.15

+0.15

43.5 - 0.15
35 - 0.15+0.006[1.378 +0.006- 0.006 ] [1.713 - 0.006 ]Type (displacement)

4,0

6,0

8,0

011

014

017

019

022

025

A

43.25
[1.703]45.0[1.772]47.0[1.850]49.0[1.929]52.0[2.047]54.0[2.126]56.0[2.205]59.0[2.323]61.0[2.402]B

128.5[5.059]132[5.197]136[5.354]140[5.512]146[5.748]150[5.906]154[6.063]160[6.299]164[6.457]

Inlet C

1.063 (1 1/16) 12UN - 2B; 18 mm [0.709 in] deep

Outlet c

0.875 (7/8) - 14UNF - 2B; 16.7 mm [0.658 in] deep

Auxillary mounting pads
SAE A auxiliary mounting pads are available for all Group 2 pumps with SAE A front flange and coupling 9
teeth 16/32 pitch. These pads are used for mounting auxiliary hydraulic pumps or creating special
tandem gear pumps.
To order pumps with SAE A auxiliary mounting flange:
Specify 06SL in field E of the model code as shown below
Order the auxiliary mounting pad kit, part number 818.20.079.0K

•
•

A

B
/

C D

E
0 6 S

F

G
L

H

I

J

K L

M

N O

/

Since the drive coupling is lubricated with oil from the main pump inlet, an O-ring must be used to seal
the auxiliary pump-mounting flange to the pad.

34 | © Danfoss | February 2023

BC319580185580en-000105

Technical Information
GearMe Aluminum Group 2 Pump
Product Options••

The combination of auxiliary mounting pad shaft torque, plus the main pump torque should notexceed the maximum pump input shaft rating 75 N•m [664 lbf•in].
All torque values assume a 58 HRC shaft spline hardness on mating pump shaft.

Outline drawing with the dimensions of the auxiliary pump mounting flange and shaft
SAE J498-9T-16/32DP-flat root side fit
SAE A Pado-ring

A 17x14 DIN 5482
M10-6H thru

Dimensions for SNP2NN / 06SL flange/shaft option with auxiliary mounting pad kit installed
7.9 ±0.75 [0.311±0.030 ]23.8 ±0.25 [0.937±0.010]
11.6-11 [.457-0.433]
Ø 0.75 [0.030] X+0Ø 0.35 [0.0014] X

A 17x14 DIN 5482

Ø 0.10/25.4 [0.004/1] K

SAE J498-9T-16/32DP-flat root side fit

SAE J498-9T-16/32DP-flat root side fit
circular thickness 0.127 mm [0.005] lessthan standard class 1 fit+0Ø15.456 -0.127 [0.609 -0.005 ]90 ±0.25 [3.543 ±0.010 ]

washers provided
10 UNI 1750 R40 brscrews provided
M10x30 UNI5931 8G br
recommended torque:40-50Nm [30-37 lb•ft]

Z

A-A

°

40.5 ±0.25 [1.594 ±0.010 ]20 ±0.75 [0.787±0.030]
Straight thread o-ring boss
(min full thd 16.7mm [0.657] deep)

0-3

0.10 [0.004] Z

o-ring provided
82.22x2.62[3.237x.103]

arrow indicates direction of rotation and outlet port

Coupling, o-ring, and screws supplied with pump

ma

]m

80]

ax

+0.0060x90.5 [3.563] max© Danfoss | February 2023

122 [4.803] max

A

115.5 [4.547] max

A
19.5 [.768] max+0.077+0.003

Ø82.55 -0.023 [3.250 -0.001 ]+0.002+0.05+0.003
Ø82.55 +0.077-0.023 [3.250 -0.001 ]00[0.650 -0.004]
Ø16.5 -0.110

C/c

15.7 ±0.50 [0.618 ±0.035 ]M10-6HY

Ø 0.35 [0.014] Y

Ø0.50 [0.020] Y

Ø87 -0.15 [3.425 -0.006 ]19.5 [0.768] max

R1

2.

7

[0

X

ma

x)
0

6.35 -0.50 [0.250 -0.020 ]] 11.5-12.5 [0.453-0.492]

106.38 [4.188]
=

50
0]

[3.7

00

+0.15

3 0 [0.118 0=

A ±0.50 [0.020]

[0.

=

96

.5

7±0.20 [0.276±0.008 ]

12
.7

=

132 [5.197] max
K

34.5 ±1.2 [1.358 ±0.047 ](R

106.38 [4.188](31.7 [1.248])

51.5 ±0.90 [2.028 ±0.035]

ax
0] m
3.78
96 [

Ø 0.40 [0.016] X

132 [5.197] max

Spline: B17 x 14 DIN 5482
profile offset +0.600 [0.025]

B ±0.50 [0.020]

BC319580185580en-000105 | 35

Technical Information
GearMe Aluminum Group 2 Pump
Product Options
Dimensions
Type (displacement)

4,0

6,0

8,0

011

014

017

019

022

025

A

43.25
[1.703]45.0[1.772]47.0[1.850]49.0[1.929]52.0[2.047]54.0[2.126]56.0[2.205]59.0[2.323]61.0[2.402]B

128.5[5.059]132[5.197]136[5.354]140[5.512]146[5.748]150[5.906]154[6.063]160[6.299]164[6.457]

Inlet C

1.063 (1 1/16) 12UN - 2B; 18 mm [0.709 in] deep

Outlet c

0.875 (7/8) - 14UNF - 2B; 16.7 mm [0.658 in] deep

Pump ports
Available pump ports

C

B

F

E

45o

a

d
g

c (4 holes min. full thd.

b

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

f

10 [0.394] deep)

Dimensions of pumps ports
Port type

B StylePort dimensions
4,0
6,0
8,0
011
Frame size 014
017
019
022
025

36 | © Danfoss | February 2023

Inlet

a

b

C Stylecdgh

7/8–14UNF–2B½ Gas (BSPP)

7/8–14UNF–2B½ Gas (BSPP)

7/8–14UNF–2B½ Gas (BSPP)

7/8–14UNF–2B½ Gas (BSPP)

7/8–14UNF–2B½ Gas (BSPP)

20 [0.787] 40 [1.575] M6 20.0 [0.787] 40 [1.575] M8 1 1/16–12UNF–2B ¾ Gas (BSPP)

Outlet 15 [0.591] 35 [1.378] M6 13.5 [0.531] 30 [1.181] M6Inlet½ Gas (BSPP)

20 [0.787] 40 [1.575] M6 20.0 [0.787] 40 [1.575] M8 1 1/16–12UNF–2B ¾ Gas (BSPP)

Outlet 15 [0.591] 35 [1.378] M6 13.5 [0.531] 30 [1.181] M6
Inlet

7/8–14UNF–2B

20 [0.787] 40 [1.575] M6 20.0 [0.787] 40 [1.575] M8 1 1/16–12UNF–2B ¾ Gas (BSPP)

Outlet 15 [0.591] 35 [1.378] M6 13.5 [0.531] 30 [1.181] M6Inlet½ Gas (BSPP)

20 [0.787] 40 [1.575] M6 20.0 [0.787] 40 [1.575] M8 1 1/16–12UNF–2B ¾ Gas (BSPP)

Outlet 15 [0.591] 35 [1.378] M6 13.5 [0.531] 30 [1.181] M6
Inlet

7/8–14UNF–2B

20 [0.787] 40 [1.575] M6 13.5 [0.531] 30 [1.181] M6 1 1/16–12UNF–2B ¾ Gas (BSPP)

Outlet 15 [0.591] 35 [1.378] M6 13.5 [0.531] 30 [1.181] M6
Inlet

f

20 [0.787] 40 [1.575] M6 13.5 [0.531] 30 [1.181] M6 1 1/16–12UNF–2B ½ Gas (BSPP)

Outlet 15 [0.591] 35 [1.378] M6 13.5 [0.531] 30 [1.181] M6
Inlet

e

15 [0.591] 40 [1.575] M6 13.5 [0.531] 30 [1.181] M6 1 1/16–12UNF–2B ½ Gas (BSPP)

Outlet 15 [0.591] 35 [1.378] M6 13.5 [0.531] 30 [1.181] M6Inlet

F Style15 [0.591] 40 [1.575] M6 13.5 [0.531] 30 [1.181] M6 1 1/16–12UNF–2B ½ Gas (BSPP)

Outlet 15 [0.591] 35 [1.378] M6 13.5 [0.531] 30 [1.181] M6Inlet

E Style7/8–14UNF–2B½ Gas (BSPP)

20 [0.787] 40 [1.575] M6 23.5 [0.925] 40 [1.575] M8 1 1/16–12UNF–2B 1 Gas (BSPP)

Outlet 15 [0.591] 35 [1.378] M6 20.0 [0.787] 40 [1.575] M8

7/8–14UNF–2B¾ Gas (BSPP)

BC319580185580en-000105

Technical Information
GearMe Aluminum Group 2 Pump
Dimensions
SNP2NN - 01DA, 01FA and 01BA
Standard porting for 01DA, 01FA and 01BA
01BA
B max

Ø 0.75 [0.030]

c
C/

1:8

-0.025

Nut and washer supplied with pump
Recommended tightening torque: 45-55 Nm

90 [3.546] max

00[0.158-0.001]
4 -0.030

X

D/d ±0.20 [0.008]

71.5[2.817]

B-B

E/e(min full thd 12 [0.472] deep)

9 [3.55]

X

A-0.001

5 [0.020][1.438 -0.002 ]21.7 [0.854]

18 [0.709]

115.2 [4.539] max(73.3 [2.888])

63.8[2.514]M6 thread 16 [.630] deep
Spline:B17x14 DIN 5482
Profile offset +0.6 [0.024]B

6.3 [0.248]

A

32.4[1.277]B

17 [0.670]

Ø 36.5 -0.050

6.5 [0.256](41.9 [1.651])

90 ±0.25 [3.546 ±0.010 ]body width(96.2 [3.790])

00Ø 15 -0.018[0.591-0.001]

30 [1.182]]

6.5 [0.256]

00Ø 16.5 -0.110[0.650-0.004

A ±0.50 [0.020]

36.5 [1.438]

10 [0.394]

Ø 17.46 [0.687]

19.5 [0.768]

40.5 [1.596]

15.7 ±0.50 [0.619 ±0.020 ]01FA

M12x1.25-6g

01DA

A-A
0
0
[0.158-0.001]
4 -0.030+0.006
9.5 +0.15-0.25 [0.374 -0.010 ]+0.00416.5 +0.10-0.20 [0.650 -0.008 ]SNP2NN – 01BA, 01FA and 01DA dimensions
Frame size

4,0

6,0

8,0

011

014

017

019

022

025

A

43.25
[1.703]45[1.772]45[1.772]49[1.929]52[2.047]52[2.047]56[2.205]59[2.323]59[2.323]B

90.0[3.543]93.0[3.681]

97.5[3.839]101.5[3.996]

107.5[4.232]111.5[4.390]115.5[4.574]121.5[4.783]125.5[4.941]C

13.5[0.531]

13.5[0.531]

13.5[0.531]

13.5[0.531]20[0.787]20[0.787]20[0.787]20[0.787]23.5[0.925]D30[1.181]30[1.181]30[1.181]30[1.181]40[1.575]40[1.575]40[1.575]40[1.575]40[1.575]

Dimension

Inlet

E
OutletM6

M8

c13.5 [0.531]

20 [0.787]

d30 [1.181]

40 [1.575]

e

M6

M8

Model code examples and maximum shaft torque
Flange/drive gear

Model code example

Maximum shaft torque

01DA

SNP2NN/014LN01DAP1C7C3NNNN/NNNNN

90 N•m [797 lbf•in]

01FA

SNP2NN/019LN01FAP1C7C3NNNN/NNNNN

90 N•m [797 lbf•in]

01BA

SNP2NN/8,0LN01BAP1C3C3NNNN/NNNNN

150 N•m [1328 lbf•in]

For further details on ordering, please see Model code on page 12.

© Danfoss | February 2023

BC319580185580en-000105 | 37

Technical Information
GearMe Aluminum Group 2 Pump
Dimensions
SNP2NN - 02DB and 02AA
Standard porting for 02DB and 02AA
02AA

E/e

72
[2.835]

Spline:B17x14 DIN 5482
profile offset +0.6 [.024]-0.002

M12x1.25-6g

A(min full thd 12 [0.472] deep)

9 [0.354]

Ø 0.75 [0.030] X

120 [4.724] max(75.5 [2.972])(100 [3.937])

34.5[1.358]A

65.5[2.579]]07.2 [0.283]

45°0Ø 16.5 -0.110[0.650-0.00412.5 [0.492]

C/c-0.060body width19.3 [0.760]

1:5

15.7 ±0.50 [0.618±0.02 ]13.5 [0.531]

16.5 [0.650]

5.7 [0.224](44.5 [1.72])

90 ±0.25 [3.543 ±0.010 ]Ø 80 -0.090 [3.150-0.003 ]A ±0.50 [±0.02]

23.5 [0.952]

17.46[0.687]02DB

38 [1.496]

X

B max

D/d ±0.20 [±0.008]

92 [3.622] max

Nut and washer supplied with pump
Recommended tightening torque: 45-55 Nm

A-A
0
0
3-0.025[0.118-0.001
]

+0.30

+0.012

9 -0.10 [0.354-0.004]

SNP2NN – 02DB and 02AA dimensions
Frame size

4,0

6,0

8,0

011

014

017

019

022

025

A

39.8
[1.567]41.1[1.618]43.1[1.697]47.5[1.870]47.5[1.870]47.5[1.870]47.5[1.870]55[2.165]64.5[2.539]B

92.5[3.642]96[3.780]100[3.937]104[4.094]110[4.331]114[4.488]118[4.646]124[4.882]

128[5.039]C

15[0.591]15[0.591]20[0.787]20[0.787]20[0.787]20[0.787]20[0.787]20[0.787]20[0.787]

Dimension

Inlet

OutletD

40 [1.575]

E

M6

c

15 [0.591]

d35 [1.378]eM6

Model code examples and maximum shaft torque
Flange/drive gear

Model code example

Maximum shaft torque

02DB

SNP2NN/017LN02DBP1B7B5NNNN/NNNNN

130 N•m [1151 lbf•in]

02AA

SNP2NN/6,0RN02AAP1B6B5NNNN/NNNNN

140 N•m [1239 lbf•in]

For further details on ordering, please see Model code on page 12.

38 | © Danfoss | February 2023

BC319580185580en-000105

Technical Information
GearMe Aluminum Group 2 Pump
Dimensions
SNP2NN - 03CA
Standard porting for 03CA
03CA
B ±0.50 [±0.02]
A±0.50 [±0.02][0.457 +0.011]
0

12 [0.472]]

Ø 30 [1.181]

14.3 [0.563]

Ø 0.75 [0.030] X

E/e

19 [.748]-0.001
8 -0.025-0.083 [0.315-0.003

45.7 [1.799]

103 [4.092] max

0

+0.27

8 [0.315]

Coupling supplied with pump(min full thd 12 [0.472] deep)

30 [1.181]

30 [1.181]]

C/c

11.5 0O-Ring 45.69 x 2.62

+0.028[0.107 045°0Ø 47.8 -0.20[1.882-0.008 ]]8.5 [0.335]

+0.70

2.7 0
]

15.7±0.50 [0.618±0.020 ]90 ±0.25 [3.543±0.01 ]body width

7.2 [0.286]

Ø 34 [1.338]]

X-0.030-0.001
Ø 52 -0.060[2.047-0.002

6.5 +0.20
0[0.258 +0.008
0(60 [2.384])

2 [0.079]+0.20+0.0083.2 0[0.126 0

D/d ±0.20 [±0.008](60 [2.362 ])SNP2NN – 03CA dimensions
Frame size

4,0

6,0

8,0

011

014

017

019

022

025

A

37.3
[1.469]38.6[1.520]40.6[1.598]45[1.772]45[1.772]45[1.772]45[1.772]52.5[2.067]62[2.441]B

81.5[3.209]85[3.346]89[3.504]93[3.661]99[3.897]103[4.055]107[4.212]113[4.448]117[4.606]C

15[0.591]15[0.591]20[0.787]20[0.787]20[0.787]20[0.787]20[0.787]20[0.787]20[0.787]

Dimension

Inlet

OutletD

40 [1.575]

E

M6

c

15 [0.591]

d35 [1.378]e

M6

Flange/drive gear

Model code example

Maximum shaft torque

03CA

SNP2NN/014RN03CAP3B7B5NNNN/NNNNN

70 N•m [620 lbf•in]

For further details on ordering, please see Model code on page 12.

© Danfoss | February 2023

BC319580185580en-000105 | 39

Technical Information
GearMe Aluminum Group 2 Pump
Dimensions
SNP2NN - 04/05DB and 04/05AA
Standard porting for 04/05DB and 04/05AA
04AA / 05AA
B ±0.50 [0.02]

14.3 [0.563]

Spline:15.7 ±0.50[0.618 ±0.02]

A

X

1:5
(min full thd 12E/e[0.472] deep)

30 [1.181]

30 [1.181]

B17x14 DIN 5482
profile offset +0.6 [0.024]-0.0017.2 [0.283](60 [2.362])

11.5 0[0.453 +0.011]
0-0.02519.3 [0.760]

A

45.7 [1.799]+0.27

Ø0.75 [0.030] X

C/c

45°

0
[0.65 -0.004]

103 [4.055] max

13.5 [0.531]0

19 [0.748]

8.2 [0.323]
90 ±0.50 [3.543 ±0.010]
body widthØ 50 -0.064 [1.969-0.0025 ]A ±0.50 [±0.02]
8.5 [0.335]

26 [1.024]

Ø 16.5 -0.110

40.5 [1.594]

17.46 [0.687]

04 BodyM12x1.25-6g

04DB / 05DB

D/d ±0.20 [±0.008]
Nut and washer supplied with pump
Recommended tightening torque: 45-55 Nm(60 [2.362])

9 +0.30-0.10

0[0.118 -0.001]+0.012A-A
0
3 -0.025[0.354 -0.004 ]05 Body

SNP2NN – 04/05DB and 04/05AA dimensions
Frame size

4,0

6,0

8,0

011

014

017

019

022

025

A

37.3
[1.469]38.6[1.520]40.6[1.598]45[1.772]45[1.772]45[1.772]45[1.772]52.5[2.067]62[2.441]B

81.5[3.208]85[3.364]89[3.503]93[3.661]99[3.897]103[4.055]107[4.212]113[4.448]117[4.606]C

15[0.591]15[0.591]20[0.787]20[0.787]20[0.787]20[0.787]20[0.787]20[0.787]20[0.787]

Dimension

Inlet

Outlet40 [1.575]

D
E

M6

c

15 [0.591]

d35 [1.378]eM6

Model code examples and maximum shaft torque
Flange/drive gear

Model code example

Maximum shaft torque

04DB

SNP2NN/8,0LN04DBP1B7B5NNNN/NNNNN

130 N•m [1151 lbf•in]

05DB

SNP2NN/022RN05DBP1B7B5NNNN/NNNNN

04AA

SNP2NN/6,0LN04AAP1B6B5NNNN/NNNNN

05AA

SNP2NN/014RN05AAP1B7B5NNNN/NNNNN

140 N•m [1239 lbf•in]

For further details on ordering, please see Model code on page 12.
40 | © Danfoss | February 2023

BC319580185580en-000105

Technical Information
GearMe Aluminum Group 2 Pump
Dimensions
SKP2NN - 06SB and SNP2NN - 06SA, 06GA
Standard porting for 06SB (SKP2NN), and 06SA, 06GA (SNP2NN)
06GA

Splined:SAE J498-11T-16/32DP
Flat root side fit(circular tooth thickness
0.127 mm [0.005] less thanstandard class 1 fit)

7.9 [0.311]
12 [0.472]

6 [0.236]

A

90 ±0.50 [3.543 ±0.010 ]Straight thread
O-Ring boss

body width

C/c

A-A

15.7 ±0.50 [0.618 ±0.020 ]

]

0

A

Splined:SAE J498-9T-16/32DP
Flat root side fit(circular tooth thickness
0.127 mm [0.005] less thanstandard class 1 fit)

Frame size

23.8 [0.937]

Ø 82.55 -0.050
0[3.250 -0.020]

R 48 [1.889] max

Ø 0.75 [0.030]X00
Ø 15.456 -0.127[0.609-0.00500

Ø 18.631 -0.127 [0.734-0.005]]

115.5 [4.547] max

12 [0.472]

A ±0.50 [0.020]0

20 [0.787]
6 [0.236]

106.38 [4.188]

7.9 [0.311]

31.7 [1.248]

0Ø 15.875 -0.025 [0.625-0.010

23.8 [0.937]

11 - 11.6 [0.433 - 0.457]

10.5 [0.413]

B max

132 [5.197] max

31.7 [1.248]

M6-6H- THD 16 [0.630] deep

38 [1.496]

06SA (SNP2NN)

X

06SB (SKP2NN)

17.475 -17.729[0.688 - 0.698]

00
4.0 -0.03[0.157-0.001
]

4,0

6,0

8,0

011

014

017

019

022

025

A

43.25
[1.703]45[1.772]47[1.850]49[1.920]52[2.047]54[2.205]56[2.205]59[2.323]61[2.402]B

90[3.543]93.5[3.681]

97.5[3.839]101.5[3.996]

107.5[4.232]111.5[4.390]115.5[4.547]121.5[4.783]125.5[4.941]

Dimension

Inlet

C

11/16–12UNF–2B, 18.0 [0.709] deep

Outletc

7/8–14UNF–2B, 16.7 [0.658] deep

Model code examples and maximum shaft torque
Flange/drive gear

Model code example

Maximum shaft torque

06GA

SNP2NN/6,0RN06GAP1E6E5NNNN/NNNNN

80 N•m [708 lbf•in]

06SA (SNP2NN)

SNP2NN/011LN06SAP1E6E5NNNN/NNNNN

75 N•m [664 lbf•in]

06SB (SKP2NN)

SKP2NN/022RN06SBP1E6E5NNNN/NNNNN

150 N•m [1328 lbf•in]

For further details on ordering, please see Model code on page 12.

© Danfoss | February 2023

BC319580185580en-000105 | 41

Technical Information
GearMe Aluminum Group 2 Pump
Dimensions
SNP2NN - 06SA..BxBxBxYY../....
Standard porting for 06SA with port type Bx offset from center of the body
06SA..BxBxYY../.....
B max

132 [5.197] max

31.7 [1.248]

A ±0.50 [0.020]

106.38 [4.188]

23.8 [0.937]
6 [0.236]

C/c

20 [0.787]

90 ±0.50 [3.543 ±0.010 ]body width(min full thd 12 mm [0.472] deep)E/e

D/d ±0.20 [0.008]

15.7 ±0.50 [0.618 ±0.020 ]00Ø 15.456 -0.127[0.609-0.005]

45°Ø 0.75 [0.030]X0

Ø 82.55 -0.050
0[3.250 -0.020]

11 - 11.6 [0.433 - 0.457]

12 [0.472]

R 48 [1.889] max

X

115.5 [4.547] max

7.9 [0.311]

Splined:SAE J498-9T-16/32DP
Flat root side fit(circular tooth thickness
0.127 mm [0.005] less thanstandard class 1 fit)

SNP2NN – 06SA..BxBxYY../..... dimensions
Frame size

4,0

6,0

8,0

011

014

017

019

022

025

A

49.2
[1.937]51.4[2.023]53.4[2.102]53.0[2.087]59.0[2.322]63.0[2.480]67.0[2.637]65.5[2.579]60.0[2.326]B

90[3.543]93.5[3.681]

97.5[3.839]101.5[3.996]

107.5[4.232]111.5[4.390]115.5[4.547]121.5[4.783]125.5[4.941]C

15[0.591]15[0.591]20[0.787]20[0.787]20[0.787]20[0.787]20[0.787]20[0.787]20[0.787]

Dimension

Inlet

OutletD

40 [1.575]

E

M6

c

15 [0.591]

d35 [1.378]eM6

Model code examples and maximum shaft torque
Flange/drive gear

Model code example

Maximum shaft torque

06SA..BxBxYY../.....

SNP2NN/019RN06SAP1B7B5YYNN/NNNNN

75 N•m [646 lbf•in]

For further details on ordering, please see Model code on page 12.

42 | © Danfoss | February 2023

BC319580185580en-000105

Technical Information
GearMe Aluminum Group 2 Pump
Dimensions
SNP2NN - A9BJ
Standard porting for A9BJ
A9BJ
17.2 ±0.50 [0.677 ±0.02 ]21.7 [0.854]
6.3 ±0.75 [0.248 ±0.03 ]12.5 ±0.50 [0.492 ±0.02 ]B-B

90 ±0.25 [3.543±0.010 ]+0.15+0.006

9.5 -0.25 [0.374-0.010

]

B

B max

Ø 17.46 [0.687]

40.5 ±1[1.594 ±0.039 ]

50.4[1.984]
ax
6] m

+0.15

8 [1

(R

ax

]m

31

.0

[0

X

15.7 ±0.5

C/c
D/d

5[

0.4

51

Ø 0.75 [0.03] X.8

R0[0.618±0.02 ]

11.
4

]m

ax)

109 [4.291] max

3.85 0][0.152 +0.006
0

.49

13°

R3

4.0 ±0.50[0.157 ±0.02 ]E/e

3/8-16UNC-2B

14-15[0.551-0.591]
Min. full thread
12 [0.472] deep

(99.6 [3.921])
49.2[1.937]0

A ±0.5 [0.02]

122.5 [4.823] max

]

1:8

0
0
3 -0.025[0.118-0.001]

0Ø 52.34 -0.05[2.061-0.002

M12x1.25-6g

B

Nut and washer supplied with pump
Recommended tightening torque: 45-55 Nm

Frame size

4,0

6,0

8,0

011

014

017

019

022

025

A

37.3
[1.469]38.6[1.520]40.6 [1.598]

45.0[1.772]45.0[1.772]45.0[1.772]45.0[1.772]52.5[2.067]62[2.441]B

90[3.543]93.5[3.681]

97.5[3.839]

101.5[3.996]

107.5[4.232]111.5[4.390]115.5[4.547]121.5[4.783]125.5[4.941]C

15[0.591]15[0.591]

20 [0.787]

20[0.787]20[0.787]20[0.787]20[0.787]20[0.787]20[0.787]

Dimension

Inlet

OutletD

40 [1.575]

E

M6

c

15 [0.591]

d35 [1.378]eM6

Model code example and maximum shaft torque
Flange/drive gear

Model code example

Maximum shaft torque

A9BJ

SNP2NN/011RNA9BJP1C7C3NNNN/NNNNN

150 N•m [1328 lbf•in]

For further details on ordering, please see Model code on page 12.
© Danfoss | February 2023

BC319580185580en-000105 | 43

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© Danfoss | February 2023

BC319580185580en-000105