Technical Information

GearMeAluminum Group 4 Pump

www.danfoss.com

Technical Information
GearMe Aluminum Group 4 Pump

Revision history

2 | © Danfoss | February 2023

Table of revisions
Date

ChangedRev

February 2023

Fixed typo

0103

January 2023

Renamed product0102

October 2019

First edition

0101

BC319660010597en-000103

Technical Information
GearMe Aluminum Group 4 Pump
Contents
General Information
Overview..............................................................................................................................................................................................4Group 4 gear pumps attributess.................................................................................................................................................4
Pump displacements.......................................................................................................................................................................4
Pump design...................................................................................................................................................................................... 5
Technical data for TAP4NN........................................................................................................................................................... 5
Determination of nominal pump sizes.....................................................................................................................................6
Product CodeModel code......................................................................................................................................................................................... 7
A Family.......................................................................................................................................................................................... 7
B Displacement............................................................................................................................................................................ 7
C Rotation...................................................................................................................................................................................... 7
D Project version......................................................................................................................................................................... 7
E Mounting flange...................................................................................................................................................................... 7
F Drive gear................................................................................................................................................................................... 8
G Rear cover.................................................................................................................................................................................. 8
H Inlet size; I Outlet size............................................................................................................................................................ 8
J Ports positions & Special body............................................................................................................................................ 9
K Seals..............................................................................................................................................................................................9
L Screws.......................................................................................................................................................................................... 9
M Set valve.....................................................................................................................................................................................9N Type mark.................................................................................................................................................................................. 9
O Mark position............................................................................................................................................................................9
System Requirements
Pressure............................................................................................................................................................................................. 10
Speed..................................................................................................................................................................................................10
Hydraulic fluids............................................................................................................................................................................... 11
Temperature and viscosity......................................................................................................................................................... 11
Filtration............................................................................................................................................................................................ 12
Filters.............................................................................................................................................................................................12
Selecting a filter.........................................................................................................................................................................12
Reservoir...................................................................................................................................................................................... 12Line sizing......................................................................................................................................................................................... 13
Pump drive....................................................................................................................................................................................... 13
Pump drive data form.................................................................................................................................................................. 14
Pump Life.......................................................................................................................................................................................... 15
Product Options
Shaft, flange, and port configurations....................................................................................................................................16
Mounting flanges...........................................................................................................................................................................16
Shaft options....................................................................................................................................................................................16
Port configurations........................................................................................................................................................................17
Porting............................................................................................................................................................................................... 18
Dimensions
TAP4NN - 01FA, 01DA, and 01BA............................................................................................................................................. 19
TAP4NN - 02RA, and 02GA..........................................................................................................................................................20© Danfoss | February 2023

BC319660010597en-000103 | 3

Technical Information
GearMe Aluminum Group 4 Pump
General Information
Overview
The Danfoss Group 4 is a range of peak performance fixed-displacement gear pumps. Constructed of ahigh-strength extruded aluminum body with aluminum cover and flange, all pumps are pressurebalanced for exceptional efficiency.

Group 4 gear pumps attributess

•
•
•
•
•
•

Wide range of displacements from 60 to 200 cm3/rev [from 3.66 to 12.2 in3/rev]
Continuous pressure rating up to 220 bar [3191 psi]
Speeds up to 3000 min-1 (rpm)
SAE and European standard mounting flanges
High quality case hardened steel gears
Multiple pump configurations in combination with SNP1NN, SNP2NN and SNP3NN

Pump displacements

Rated pressure (bar)Quick reference chart for pump displacements vs. rated pressure
TAP4NN

250
200
150
100
50
0
50

60

70

80

90

100

110

120

130

140

150

160

170

180

190

200

Displacement (cm3/rev)

4 | © Danfoss | February 2023

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Technical Information
GearMe Aluminum Group 4 Pump
General Information
Pump design

TAP4NNThe TAP4NN gear pump is available in a displacement range from 60.0 to 200.0 cm3/ rev [from 3.66 to12.2 in3/rev]. Suitable for applications where the pressure is lower than 220 bar[3191 psi] continuous, the
TAP4NN range is released into SAE and European configurations.
TAP4NN 01BA

Technical data for TAP4NN
TAP4NN pump model

Frame size
60

85

106

130

148

180

200

Displacement

cm3/rev [in3/rev]

58.0[3.54]

83.3[5.08]

103.4[6.31]

126.1[7.69]

143.8[8.77]

174.1[10.62]

194.3[11.86]

Peak pressure

bar [psi]

230[3335]

230[3335]

230[3335]

230[3335]

220[3190]

180[2610]

160[2320]

220[3190]

220[3190]

220[3190]

220[3190]

210[3045]

170[2465]

150[2175]

650

650

600

550

500

500

480

3000

3000

2500

2500’

2400

2400

2400

14.4
[31.75]14.9[32.85]15.75[34.72]

17.2[37.92]17.25[38.03]18[39.68]Rated pressure
Minimum speed

min-1 (rpm)Maximum speed
Weightkg [lb]13.45[29.65]

Moment of inertia ofrotating
components

x 10-6 kg•m2[x 10-6 lbf•ft2]

682,7
839
965,2
1106,5 1216,4 1216,4 1530,3
16193,6 19901,1 22894,5 26246,2 28853,0 28853,0 36298,7

Theoretical flow at maximum l/min
speed[US gal/min]

174.0[46.0]

249.9[66.0]

258.5[68.3]

315.2[83.3]

345.1[91.2]

417.8[110.4]466.3[123.2]

C Caution
The rated and peak pressure mentioned are for pumps with flanged ports only. When threaded ports are
required a derated performance must be considered. To verify the compliance of an high pressure
application with a threaded ports pump apply to a Danfoss representative.
© Danfoss | February 2023

BC319660010597en-000103 | 5

Technical Information
GearMe Aluminum Group 4 Pump
General Information
Determination of nominal pump sizes
Use these formula to determine the nominal pump size for a specific application:

6 | © 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)

BC319660010597en-000103

Technical Information
GearMe Aluminum Group 4 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

M

N O

/

Group 4 pumps from 60 up to 200 cc

TAP4NNB Displacement
A

B
/

060

58 cc

085

83,3 cc106

103,4 cc130

126,1 cc148

143,8 cc180

174,1 cc200

194,3 cc

C D

E

F

G

H

I

J

K L

● ● ●

/

C Rotation
A

B

L

Left rotationR

Right rotation

C D

E

F

G

H

I

J

K L

●

/

/

D Project version
A

B

C D

E

F

G

H

I

J

K L

●

/

/

Std Version of ProjectN

E Mounting flange
A

B

C D

/

© Danfoss | February 2023

E

F

G

● ●

H

I

J

K L
/

Code

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

01

European 4 bolt - Pilot Ø63,502

SAE C 2 bolt - Pilot Ø127

F1

European 4 bolt - Pilot Ø63,5 (special FIAT-ALLIS)

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Technical Information
GearMe Aluminum Group 4 Pump
Product CodeF Drive gear
A

B

C D

E

F

G

H

I

J

K L

● ●

/
BA

Taper 1:8-M20x1,5-Key 6,375

DA

Spline DIN 5482 B35x31xL44

FA

Parallel Ø30-Key 8x7xL50

GA

Parallel Ø31,75-Key 7,962x7x36

RA

Splined-SAE J498-14T-12/24-SAE C 2 bolt

M

N O

M

N O

M

N O

/

G Rear cover
A

B

C D

E

F

G

H

I

J

K L

● ●

/

/

Standard cover for pumpP1

H Inlet size; I Outlet size
A

B

C D

/

8 | © Danfoss | February 2023

A431x30,18x58,72x7/16-14UNC

A537,5x35,71x69,85x1/2-13UNC

A650x42,88x77,77x1/2-13UNC

CB

30x56xM10CC

32x62xM10

CD

36x62xM10CE

32x62xM12

CF

38x72,5xM12CG

40x72,5xM12

CH

45x72,5xM12

CK

48x72,5xM12

CL

56x92xM12

F7

1-1/4 GAS

F8

1-1/2 GAS

F9

1-3/4 GASGE

32x62x7/16-14UNC

GF

38x72,5x1/2-13UNC

GK

48x72,5x1/2-13UNC

E

F

G

H

I

● ● ● ●J

K L/

BC319660010597en-000103

Technical Information
GearMe Aluminum Group 4 Pump
Product CodeJ Ports positions & Special body
A

B

C D

E

F

G

H

I

J

K L

● ●

/
NN

Std position from cataloge

SD

Body width side ports=151mm (Std for 02 Flange)

G9

Ports distance from flange=79 - Special

I5

Ports distance from flange =95 - Special

L0

Ports distance from flange =100 - Special

LI

Ports distance from flange =104,5 - Special

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
●

/

/

Standard NBR seals

N

L Screws
A

B

C D

E

F

G

H

I

J

K L
●

/

/

Std burnished 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 CodeZ

Without Marking

N O

O Mark position
A

B

C D

E

/

© 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
●

BC319660010597en-000103 | 9

Technical Information
GearMe Aluminum Group 4 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.

10 | © Danfoss | February 2023

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Technical Information
GearMe Aluminum Group 4 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 TAP4NN gear pumps are based on operating with premium hydraulic fluids
containing oxidation, rust, and foam inhibitors. These fluids must possess good thermal and hydrolytic
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

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Technical Information
GearMe Aluminum Group 4 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.

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Technical Information
GearMe Aluminum Group 4 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 4 gear pumps include tapered, splined, or parallel shafts. They are suitable for awide 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

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Technical Information
GearMe Aluminum Group 4 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)

14 | © Danfoss | February 2023

V notchP

N lbf

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Technical Information
GearMe Aluminum Group 4 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.

© Danfoss | February 2023

BC319660010597en-000103 | 15

Technical Information
GearMe Aluminum Group 4 Pump
Product Options
Shaft, flange, and port configurations
Motor

Code

Flange

Shaft

Port

01BA

pilot Ø 63.5 mm[2.5 in]European 01, 4bolt

1:8 tapered

Europeanflanged port +pattern01DA

pilot Ø 63.5 mm[2.5 in]European 01, 4bolt

Spline DIN 5482
B35x31xL44

Europeanflanged port +pattern

TAP4NN

01FA

pilot Ø 63.5 mm[2.5 in]European 01, 4bolt

Parallel Ø30-Key
8x7xL50

Europeanflanged port +pattern

TAP4NN

02RA

pilot Ø 127 mm[5.0 in] SAE C, 2bolt

Splined-SAE
J498-14T

Vertical four bolt
flanged port

TAP4NN

02GA

pilot Ø 127 mm[5.0 in] SAE C, 2bolt

Parallel Ø31,75Key 7,962x7x36

Vertical four bolt
flanged port

TAP4NNTAP4NN

Mounting flanges
Danfoss offers many types of industry standard mounting flanges. This table shows order codes for eachavailable mounting flange and its intended use:
A

B

C D

E

F

G

H

I

J

K L

● ●

/

M

N O

/

Code

Description

01

European 4 bolt - PilotØ63,502

SAE C 2 bolt - Pilot Ø127

F1

European 4 bolt - Pilot Ø63,5 (special FIAT-ALLIS)

Shaft options
Direction is viewed facing the shaft. Group 4 pumps are available with a variety of splined, parallel, andtapered shaft ends. Not all shaft styles are available with all flange styles.
A

B

C D

/
Shaft

16 | © Danfoss | February 2023

E

F

G

H

I

J

K L

● ●

M

N O

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

Code

Description

01

BA

Taper 1:8-M20x1,5-Key 6,375

970 [8585]

DA

Spline DIN 5482 B35x31xL44

850 [7523]

02

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Technical Information
GearMe Aluminum Group 4 Pump
Product Options
Shaft

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

Code

Description

01

02

FA

Parallel Ø30-Key 8x7xL50

710 [6284]

GA

Parallel Ø31,75-Key 7,962x7x36

750 [6638]

RA

Splined-SAE J498-14T-12/24-SAE C 2 bolt

800 [7080]

Danfoss recommends mating splines conform to SAE J498 or DIN 5482. Danfoss external SAE splines havea 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.

Port configurations
Various port configurations are available on Group 4 pumps. They include:
SAE split flange ports
European standard flanged ports
Gas threaded ports (BSPP)•••

For a table of dimensions see Porting on page 18.
Available port configurations
A

B

C D

/

© Danfoss | February 2023

Code

Description

A4

31x30,18x58,72x7/16-14UNC

A537,5x35,71x69,85x1/2-13UNC

A650x42,88x77,77x1/2-13UNC

CB

30x56xM10CC

32x62xM10

CD

36x62xM10CE

32x62xM12

CF

38x72,5xM12CG

40x72,5xM12

CH

45x72,5xM12

CK

48x72,5xM12

CL

56x92xM12

F7

1-1/4 GAS

F8

1-1/2 GAS

F9

1-3/4 GAS

E

F

G

H

I

J

● ● ● ●

K L

M

N O

/

SAE flanged port

Flanged port with thd holes in + pattern

Threaded GAS (BSPP)

BC319660010597en-000103 | 17

Technical Information
GearMe Aluminum Group 4 Pump
Product Options
GE

32x62x7/16-14UNC

GF

38x72,5x1/2-13UNC

GK

48x72,5x1/2-13UNC

Flanged port with the holes in + pattern UN thread

Porting

Ports dimensions
Port typeA

Dimensions

a

b

C

Type (displacement) 060 Inlet

38.1
[1.5]

35.71 69.85 1/2 -13 UNC[1.4] [2.75]

d

c

E

g

h

i

f

62
[2.44]

36 [1.42] M10 1-1/2 Gas (BSPP)

Outlet 31.8 30.18 58.72 7/16 - 14UNC 56 [2.2] 30 [1.18] M10 1-1/4 Gas (BSPP)[1.25] [1.19] [2.31]
085 Inlet

38.1
[1.5]

35.71 69.85 1/2 -13 UNC[1.4] [2.75]

62[2.44]

36 [1.42] M10 1-1/2 Gas (BSPP)

Outlet 31.8 30.18 58.72 7/16 - 14UNC 56 [2.2] 30 [1.18] M10 1-1/4 Gas (BSPP)[1.25] [1.19] [2.31]
106 Inlet

50.8
[2.0]

42.88 77.77 1/2 -13 UNC[1.69] [3.06]

62[2.44]

Outlet 38.1
[1.5]

35.71 69.85 1/2 -13 UNC[1.4] [2.75]

56 [2.2] 30 [1.18] M10 1-1/4 Gas (BSPP)

50.8
[2.0]

42.88 77.77 1/2 -13 UNC[1.69] [3.06]

72.5[2.85]

45 [1.77] M12 1-3/4 Gas (BSPP)

Outlet 38.1
[1.5]

35.71 69.85 1/2 -13 UNC[1.4] [2.75]

62[2.44]

36 [1.42] M10 1-1/2 Gas (BSPP)

50.8
[2.0]

42.88 77.77 1/2 -13 UNC[1.69] [3.06]

72.5[2.85]

45 [1.77] M12 1-3/4 Gas (BSPP)

Outlet 38.1
[1.5]

35.71 69.85 1/2 -13 UNC[1.4] [2.75]

62[2.44]

36 [1.42] M10 1-1/2 Gas (BSPP)

50.8
[2.0]

42.88 77.77 1/2 -13 UNC[1.69] [3.06]

92[3.62]

56 [2.2]

Outlet 38.1
[1.5]

35.71 69.85 1/2 -13 UNC[1.4] [2.75]

72.5[2.85]

45 [1.77] M12 N/A

50.8
[2.0]

42.88 77.77 1/2 -13 UNC[1.69] [3.06]

92[3.62]

56 [2.2]

Outlet 38.1
[1.5]

35.71 69.85 1/2 -13 UNC[1.4] [2.75]

72.5[2.85]

45 [1.77] M12 N/A

130 Inlet

148 Inlet

180 Inlet

200 Inlet

18 | © Danfoss | February 2023

36 [1.42] M10 1-1/2 Gas (BSPP)

M12 N/A

M12 N/A

BC319660010597en-000103

Technical Information
GearMe Aluminum Group 4 Pump
Dimensions
TAP4NN - 01FA, 01DA, and 01BA
The drawing shows the TAP4NN standard porting for 01FA, 01DA and 01BA.

mm
[in]

TAP4NN – 01FA, 01DA, 01BA dimensions
Frame size

060

085

106

130

148

180

200

A

84
[3.3]

89
[3.5]

93
[3.66]

97.5[3.84]

101[3.98]

107[4.21]

111[4.37]

B

168[6.61]

178
[7.0]

186
[7.32]

195[7.68]

202[7.95]

214[8.42]

222[8.74]

C

36 [1.42]

45 [1.77]

56 [2.2]

D

62 [2.44]

72.5 [2.85]

92 [3.62]

E

M10

M12

M12

c

30 [1.18]

36 [1.42]

45 [1.77]

d56 [2.2]

62 [2.44]

72.5 [2.85]

e

M10

M10

M12

Flange/drive gear

Model code example

Maximum shaft torque

01DA

TAP4NN/106LN01DAP1CDCBNNNN/NNNNN

850 [7523]

01FA

TAP4NN/148RN01FAP1CHCDNNNN/NNNNN

710 [6284]

01BA

TAP4NN/180RN01BAP1CLCH NNNN/NNNNN

970 [8585]

Dimension

Inlet

OutletModel code examples and maximum shaft torqueFor further details on ordering, see Model code on page 7.

© Danfoss | February 2023

BC319660010597en-000103 | 19

Technical Information
GearMe Aluminum Group 4 Pump
Dimensions
TAP4NN - 02RA, and 02GA
This drawing shows the standard porting for 02RA and 02GA.

mm
[in]

TAP4NN – 02RA, 02GA dimensions
Frame size
Dimension

Inlet

Outlet

060

085

106

130

148

180

200

A

87
[3.42]

92[3.62]

96[3.78]

100.5[3.96]

104
[4.1]

110
[4.33]

114[4.49]

B

171[6.73]

181[7.13]

189[7.44]

198[7.79]

205[8.07]

217[8.54]

225[8.86]

C

38.1 [1.5]50.8 [2.0]D

35.71 [1.4]42.88 [1.69]

E

69.85 [2.75]

77.77 [3.06]

F

1/2-13UNC

1/2-13UNCc

31.8 [1.25]

38.1 [1.5]d30.18 [1.19]

35.71 [1.4]e58.72 [2.31]

69.85 [2.75]

f

7/16-14UNC

1/2-13UNC

Flange/drive gear configuration

Model code example

Maximum shaft torqueN•m [lb•in]

02RA

TAP4NN/060RN02RAP1A5A4SDNN/NNNNN

800 [7080]

02GA

TAP4NN/130LN02GAP1A6A5SDNN/NNNNN

750 [6638]

For further details on ordering, see Model code on page 7.

20 | © Danfoss | February 2023

BC319660010597en-000103

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Danfoss Power Solutions is a global manufacturer and supplier of high-quality hydraulic andelectric components. We specialize in providing state-of-the-art technology and solutions
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© Danfoss | February 2023

BC319660010597en-000103