Electric Drives Linear Motion and

and Controls Hydraulics Assembly Technologies Pneumatics Service

Axial Piston Variable Pump RE 92003/06.09

Replaces: 03.09
1/64

A4VG

Data sheet

Series 32
Sizes 28...250
Nominal pressure 400 bar
Peak pressure 450 bar
Closed circuit

Contents Features
Ordering Code / Standard Program 2 – Variable axial piston pump of swashplate design for hydro-
Technical Data 5 static closed circuit transmissions
High-Pressure Relief Valves 9
– Flow is proportional to drive speed and displacement and is
Pressure Cut-Off, D 10
infinitely variable
NV - Version Without Control Unit 11
DG - Hydraulic Control, Direct Operated 11 – Output flow increases with the swivel angle of the swash-
EZ - Electric Two-Point Control, With Switching Solenoid 11 plate from 0 to its maximum value
HD - Hydraulic Control, Pilot-Pressure Related 12
– Flow direction changes smoothly when the swashplate is
HW - Hydraulic Control, Mechanical Servo 13
moved through the neutral position
EP - Electric Control, With Proportional Solenoid 14
DA - Hydraulic Control, Speed Related 16 – A wide range of highly adaptable control devices is available
Unit Dimensions, Size 28 18 for different control and regulating functions
Unit Dimensions, Size 40 22
– The pump is equipped with two pressure-relief valves on the
Unit Dimensions, Size 56 26
high pressure ports to protect the hydrostatic transmission
Unit Dimensions, Size 71 30
(pump and motor) from overload
Unit Dimensions, Size 90 34
Unit Dimensions, Size 125 38 – The high-pressure relief valves also function as boost valves
Unit Dimensions, Size 180 42
– The integrated boost pump acts as a feed and control oil
Unit Dimensions, Size 250 46
pump
Through Drive Dimensions 50
Overview of Attachments on A4VG 53 – The maximum boost pressure is limited by a built-in boost
Combination Pumps A4VG + A4VG 53 pressure relief valve
Mechanical Stroke Limiter, M 54
– The integral pressure cut-off is standard
Ports X3 and X4 for Positioning Pressure, T 54
Filtration Types 55
Swivel Angle Indicator 59
Connector for Solenoids (Only for EP, EZ, DA) 60
Rotary Inch Valve 61
Installation Situation for Coupling Assembly 62
Installation Notes 63
General Notes 64
2/64 Bosch Rexroth AG A4VG | RE 92003/06.09

Ordering Code / Standard Program

A4V G D / 32 – N
01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22

Axial piston unit

01 Variable swashplate design, nominal pressure 400 bar, peak pressure 450 bar A4V

Operation mode
02 Pump in closed circuit G

Size
03 ≈ Displacement Vg max in cm3 28 40 56 71 90 125 180 250

Control device 28 40 56 71 90 125 180 250

Without control unit l l l l l l l l NV
Hydraulic control pilot-pressure related with supply filtration l l l l l l l l HD3
mechanical servo l l l l l l l l HW
direct operated l l l l l l l l DG
speed related (Description U = 12 V DC l l l l l l l l DA1
04
DA control valve in Pos. 09) U = 24 V DC l l l l l l l l DA2
Electric control with proportional solenoid U = 12 V DC l l l l l l l l EP3
with supply filtration U = 24 V DC l l l l l l l l EP4
with switching solenoid U = 12 V DC l l l l l l l l EZ1
U = 24 V DC l l l l l l l l EZ2

Pressure cut-off 28 40 56 71 90 125 180 250

05 With pressure cut-off (standard) l l l l l l l l D

Neutral position switch (only for HW) 28 40 56 71 90 125 180 250

Without neutral position switch (without code) l l l l l l l l
06
With neutral position switch (with DEUTSCH connector) l l l l l l l l L

Mechanical stroke limiter 28 40 56 71 90 125 180 250

Without mechanical stroke limiter (without code) l l l l l l l l
07
With mechanical stroke limiter, external variable l l l l l l l l M

Ports X3, X4 for positioning pressure 28 40 56 71 90 125 180 250

Without ports X3, X4 (without code) l l l l l l l l
08
With ports X3, X4 l l l l l l l l T

DA control valve NV HD1 HW DG DA EP EZ

Without DA control valve l l l l – l l 1
With DA control valve, fixed setting – l l l l l – 2
With DA control valve, mech. Actuating direction - clockwise – l l l l l – 3R
adjustable with position lever Actuating direction - counterclockwise – l l l l l – 3L
09 With DA control valve, fixed setting and hydraulic inch valve mounted,
– – – – l – – 4
control with brake fluid according to ISO 4925, no mineral oil
With DA control valve, fixed setting and ports for pilot control device – l l l l l – 7
With DA control valve, fixed setting and hydraulic inch valve mounted
– – – – l – – 8
control with brake fluid based on mineral oil
RE 92003/06.09 | A4VG Bosch Rexroth AG 3/64

Ordering Code / Standard Program

A4V G D / 32 – N
01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22

Series
10 Series 3, Index 2 32

Direction of rotation
Viewed from shaft end clockwise R
11
counterclockwise L

Seals
12 NBR (nitrile-caoutchouc), shaft seal ring in FKM (fluor-caoutchouc) N

Shaft end (permissible input torque see page 8) 28 40 56 71 90 125 180 250
Splined shaft DIN for single pump ● ● ● ● ● ● ● ● Z
5480 for combination pump - 1st pump – 1) ● ● ● ● ● – 1) – 1) A
13 Splined shaft for single pump ● ● ● ● ● ● ● ● S
ANSI B92.1a–1976 for combination pump - 1st pump – 2) – 2) ● ● – 2) ● ● ● T
only for combination pump - 2nd pump – ● – – ● – – – U

Mounting flange 28 40 56 71 90 125 180 250

SAE J744 – 2-bolt ● ● ● – – – – – C
14 SAE J744 – 4-bolt – – – – – – ● ● D
SAE J744 – 2+4-bolt – – – ● ● ● – – F

Service line ports (metric fixing thread) 28 40...180 250

SAE flange ports suction port S bottom – ● – 02
A/B top and bottom suction port S at top – ❍ – 03
15
SAE flange ports right suction port S bottom ● – ● 10
A/B same side left suction port S at top ❍ – ❍ 13

Boost pump 28 40 56 71 90 125 180 250

Without integrated boost pump without through drive ● ● ● ● ● ● ● ● N00
with through drive ● ● ● ● ● ● ● ● K..
16
With integrated boost pump without through drive ● ● ● ● ● ● ● ● F00
with through drive ● ● ● ● ● ● ● ● F..

Through drive (mounting options, see page 53)

Flange SAE J744 3) Hub for splined shaft 28 40 56 71 90 125 180 250
82-2 (A) 5/8 in 9T 16/32DP 4) ● ● ● ● ● ● ● ● .01
101-2 (B) 7/8 in 13T 16/32DP 4) ● ● ● ● ● ● ● ● .02
1 in 15T 16/32DP 4) ● ● ● ● ● ● ● ● .04
17 127-2 (C) 1 in 15T 16/32DP 4) – ● – – – – – – .09
1 1/4 in 14T 12/24DP 4) – – ● ● ● ● ● ● .07
152-2/4 (D) W35 2x30x16x9g 5) – – – – ● – – – .73
1 3/4 in 13T 8/16DP 4) – – – – – ● ● ● .69
165-4 (E) 1 3/4 in 13T 8/16DP 4) – – – – – – ● ● .72
4/64 Bosch Rexroth AG A4VG | RE 92003/06.09

Ordering Code / Standard Program

A4V G D / 32 – N
01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22

Valves setting range Δp 28 40 56 71 90 125 180 250

With high-pressure relief valve, pilot operated 100...420 bar with bypass – – – ● ● ● ● ● 1
With high-pressure relief valve, 270...420 bar without bypass ● ● ● – – – – – 3
18 direct operated (fixed setting) with bypass● ● ● – – – – – 5
100...250 bar without bypass ● ● ● – – – – – 4
with bypass ● ● ● – – – – – 6

Filtration 28 40 56 71 90 125 180 250

Filtration in the suction line of boost pump (filter not included in supply) ● ● ● ● ● ● ● ● S
Filtration in pressure line of boost pump
● ● ● ● ● ● ● ● D
ports for external boost circuit filtration, (Fe and Fa)
and cold start valve – ● ● ● ● ● ● – K
19 Filter mounted with cold start valve but without contamination indicator – ● ● ● ● ● ● – F
Filter mounted with
window – ● ● ● ● ● ● – P
cold start valve and
contamination indi-
electr. signal - DEUTSCH connector – ● ● ● ● ● ● – B
cator through:
External supply (version without integral boost pump - N00, K..) ● ● ● ● ● ● ● ● E

Swivel angle indicator 28 40 56 71 90 125 180 250

Without swivel angle indicator (without code) ● ● ● ● ● ● ● ●
20
Electric swivel angle sensor ● ● ● ● ● ● ● ● R

Connector for solenoids (only for EP, EZ, DA) 28 40 56 71 90 125 180 250
DEUTSCH connector without suppressor diode ● ● ● ● ● ● ● ● P
21
molded, 2-pin with suppressor diode (only for EZ and DA) ❍ ❍ ❍ ❍ ❍ ❍ ❍ ❍ Q

Standard / special version6)

Standard version without code
combined with attachment part or attachment pump -K
22
Special version -S
combined with attachment part or attachment pump -SK
1) Standard for combination pump – 1st pump: shaft Z
2) Standard for combination pump – 1st pump: shaft S
3) 2 = 2-bolt; 4 = 4-bolt
4) Hub for splined shaft acc. to ANSI B92.1a-1976 (splined shaft assigned acc. to SAE J744, see page 50-52 )
5) Hub for splined shaft acc. to DIN 5480
6) Adjustment data are included in the material number

= available ❍ = on request – = not available

= preferred program
RE 92003/06.09 | A4VG Bosch Rexroth AG 5/64

Technical Data
Hydraulic fluid Selection diagram

Before starting project planning, please refer to our data sheets -40° -20° 0° 20° 40° 60° 80° 100°
1600 1600
RE 90220 (mineral oil), RE 90221 (environmentally acceptable 1000
hydraulic fluids) and RE 90223 (HF hydraulic fluids) for detailed 600
400
information regarding the choice of hydraulic fluid and applica-

VG 68
VG

VG 32
VG 46
VG 2
200
tion conditions.

10
2

0
100
The variable pump A4VG is unsuitable for operation with HFA,
60
HFB and HFC. If HFD or environmentally acceptable hydraulic
40 36
fluids are being used, the limitations regarding technical data
νopt.

Viscosity ν in mm2/s
and seals mentioned in RE 90221 and RE 90223 must be
20
observed. 16
When ordering, please indicate the used hydraulic fluid. 10

Operating viscosity range

For optimum efficiency and service life, select an operating vis- 5 5
-40° -25° -10° 0° 10° 30° 50° 70° 90° 115°
cosity (at operating temperature) within the optimum range of Temperature t in °C
νopt = opt. operating viscosity 16...36 mm2/s tmin = -40°C tmax = +115°C
Hydraulic fluid temperature range
depending on the circuit temperature (closed circuit).

Limits of viscosity range Details regarding the choice of hydraulic fluid

The limiting values for viscosity are as follows: The correct choice of hydraulic fluid requires knowledge of the
operating temperature in relation to the ambient temperature: in
νmin = 5 mm2/s a closed circuit the circuit temperature.
short term (t < 3 min)
at max. perm. temperature of tmax = +115 °C. The hydraulic fluid should be chosen so that the operating vis-
cosity in the operating temperature range is within the optimum
νmax = 1600 mm2/s range (νopt) - the shaded area of the selection diagram. We
short term (t < 3 min) recommended that the higher viscosity class be selected in
at cold start (p ≤ 30 bar, n ≤ 1000 rpm, tmin = -40 °C). each case.
Only for starting up without load. Optimum operating Example: At an ambient temperature of X °C an operating
viscosity must be reached within approx. 15 minutes. temperature of 60 °C is set. In the optimum operating viscos-
Note that the maximum hydraulic fluid temperature of 115 °C ity range (νopt; shaded area) this corresponds to the viscosity
must not be exceeded locally either (e.g. in the bearing area). classes VG 46 or VG 68; to be selected: VG 68.
The temperature in the bearing area is - depending on pres- Please note: The case drain temperature, which is affected by
sure and speed - up to 5 K higher than the average case drain pressure and speed, is always higher than the circuit tempera-
temperature. ture. At no point in the system may the temperature be higher
Special measures are necessary in the temperature range from than 115 °C.
-40 °C to -25 °C (cold start phase), please contact us. If the above conditions cannot be maintained due to extreme
For detailed information about use at low temperatures, see operating parameters, please consult us.
RE 90300-03-B.
6/64 Bosch Rexroth AG A4VG | RE 92003/06.09

Technical Data
Filtration Shaft seal ring
The finer the filtration, the higher the cleanliness level of the
Permissible pressure loading
hydraulic fluid and the longer the service life of the axial piston
unit. The service life of the shaft seal ring is affected by the speed
of the pump and the case drain pressure. It is recommended
To ensure functional reliability of the axial piston unit the hy-
that the average, continuous case drain pressure at operating
draulic fluid must have a cleanliness level of at least
temperature 3 bar absolute not be exceeded (max. permissible
20/18/15 according to ISO 4406. case drain pressure 6 bar absolute at reduced speed, see
diagram). Short term (t < 0.1 s) pressure spikes of up to 10
Depending on the system and the application, for the A4VG,
bar absolute are permitted. The service life of the shaft seal
we recommend
ring decreases with an increase in the frequency of pressure
Filter elements β20 ≥ 100 spikes.
With a rising differential pressure at the filter elements, the The case pressure must be equal to or greater than the exter-
β-value must not deteriorate. nal pressure on the shaft seal ring.
At very high hydraulic fluid temperatures (90 °C to max. 115 °C) Sizes
at least cleanliness level Size 250 Size 125 40,56
Size 180 Sizes 71,90 Size 28
19/17/14 according to ISO 4406 is required. 6
If the above classes cannot be observed, please contact us.
For notes on filtration types, see pages 55-58 5
Perm. pressure pabs. max. bar

Operating pressure range 4

Input 3 Size
71 Size 28
Variable pump (with external supply, E): Size
Size Size 40
2 56
For control EP, EZ, HW and HD 90
boost pressure (at n = 2000 rpm) pSp ______________ 20 bar
1
For control DA, DG
1000 2000 3000 4000 5000
boost pressure (at n = 2000 rpm) pSp ______________ 25 bar
Speed n in rpm
Boost pump:
suction pressure ps min (ν ≤ 30 mm2/s) _____≥ 0.8 bar absolute
Temperature range
at cold starts, short term (t < 3 min) _______≥ 0.5 bar absolute
The FKM shaft seal ring is permissible for case temperatures of
Output -25 °C to +115 °C.
Variable pump: Note:
pressure at port A or B For application cases below -25 °C, an NBR shaft seal ring is
necessary (permissible temperature range: -40 °C to +90 °C).
Nominal pressure pN ____________________________ 400 bar
Please state NBR shaft seal ring in plain text when ordering.
Peak pressure pmax _____________________________ 450 bar
Please contact us.
Boost pump:
peak pressure pSp max ____________________________ 40 bar
(pressure data according to DIN 24312)
Nominal pressure: Max. design pressure at which fatigue
strength is ensured.
Peak pressure: Max. operating pressure which is permis-
sible for short term (t<1s).
RE 92003/06.09 | A4VG Bosch Rexroth AG 7/64

Technical Data
Table of values (theoretical values, without efficiencies and tolerances; values rounded)
Size 28 40 56 71 90 125 180 250
Displacement
variable pump Vg max cm3 28 40 56 71 90 125 180 250
boost pump (at p = 20 bar) Vg Sp cm3 6.1 8.6 11.6 19.6 19.6 28.3 39.8 52.5
Speed
maximum at Vg max nmax continuous rpm 4250 4000 3600 3300 3050 2850 2500 2400
limited maximum 1) nmax limited rpm 4500 4200 3900 3600 3300 3250 2900 2600
intermittent maximum 2) nmax interm. rpm 5000 5000 4500 4100 3800 3450 3000 2700
minimum nmin rpm 500 500 500 500 500 500 500 500
Flow
at nmax continuous and Vg max qv max l/min 119 160 202 234 275 356 450 600
Power 3)

at nmax continuous and Vg max Δp = 400 bar Pmax kW 79 107 134 156 183 237 300 400
Torque 3)

at Vg max Δp = 400 bar Tmax Nm 178 255 356 451 572 795 1144 1590
Δp = 100 bar T Nm 44.5 63.5 89 112.8 143 198.8 286 398
Rotary stiffness Shaft end S c Nm/rad 31400 69000 80800 98800 158100 218300 244500 354500
Shaft end T c Nm/rad – – 95000 120900 – 252100 318400 534300
Shaft end A c Nm/rad – 79600 95800 142400 176800 256500 – –
Shaft end Z c Nm/rad 32800 67500 78800 122800 137000 223700 319600 624200
Shaft end U c Nm/rad – 50800 – – 107600 – – –
Moment of inertia for rotary group JGR kgm2 0.0022 0.0038 0.0066 0.0097 0.0149 0.0232 0.0444 0.0983
Angular acceleration max. 4) α rad/s2 38000 30000 24000 21000 18000 14000 11000 6700
Filling capacity V L 0.9 1.1 1.5 1.3 1.5 2.1 3.1 6.3
Weight approx. (without through drive) m kg 29 31 38 50 60 80 101 156
1) Restricted maximum speed: – at half corner power (e.g. at Vg max and pN /2)
2) Intermittent maximum speed: – at high idle speed
– at overspeed: Δp = 70...150 bar and Vg max
– at reversing peaks: Δp < 300 bar and t < 0.1 s.
3) Without boost pump
4) – The area of validity is situated between the minimum required and maximum permissible speed.

It applies for external stimuli (e.g. engine 2-8 times rotary frequency, cardan shaft twice the rotary frequency).
– The limit value applies for a single pump only.
– The load capacity of the connection parts has to be considered.
Caution: Exceeding the permissible limit values may result in a loss of function, a reduction in service life or in the
destruction of the axial piston unit.
A calculation can be performed to determine the permissible values.

Determining the size

Vg • n • ηv Vg = displacement volume per revolution in cm3

Flow qv = l/min
1000 Δp = differential pressure in bar
n = speed in rpm
Vg • Δp
Torque T = Nm ηv = volumetric efficiency
20 • π • ηmh
ηmh = mechanical-hydraulic efficiency
2π•T•n qv • Δp
Power P = = kW ηt = total efficiency
60000 600 • ηt
8/64 Bosch Rexroth AG A4VG | RE 92003/06.09

Technical Data
Permissible axial and radial loading on drive shaft
Size 28 40 56 71 90 125 180 250
Radial force, max. Fq max N 2500 3600 5000 6300 8000 11000 16000 22000
at distance (from shaft collar)
a mm 17.5 17.5 17.5 20 20 22.5 25 29
Fq
Fq max N 2000 2891 4046 4950 6334 8594 12375 16809
b mm 30 30 30 35 35 40 45 50
a,b,c
Fq max N 1700 2416 3398 4077 5242 7051 10150 13600
c mm 42.5 42.5 42.5 50 50 57.5 60 71
Axial force, max. - –Fax max N 1557 2120 2910 4242 4330 5743 7053 4150
Fax
+ +Fax max N 417 880 1490 2758 2670 3857 4947 4150
Note: special requirements apply in the case of belt drives. Please contact us.

Permissible input and through-drive torques

Size 28 40 56 71 90 125 180 250
Torque
Tmax Nm 178 254 356 451 572 795 1144 1590
(at Vg max and Δp = 400 bar) 1)
Input torque, max. 2)
at shaft end Z TE perm. Nm 352 522 522 912 912 1460 3140 4350
DIN 5480 W25 W30 W30 W35 W35 W40 W50 W55
at shaft end A TE perm. Nm – 912 912 1460 2190 2190 – –
DIN 5480 W35 W35 W40 W45 W45
at shaft end S TE perm. Nm 314 602 602 602 1640 1640 1640 1640
ANSI B92.1a-1976 (SAE J744) 1 in 1 1/4 in 1 1/4 in 1 1/4 in 1 3/4 in 1 3/4 in 1 3/4 in 1 3/4 in
at shaft end T TE perm. Nm – – 970 970 – 2670 4070 4070
ANSI B92.1a-1976 (SAE J744) 1 3/8 in 1 3/8 in 2 in 2 1/4 in 2 1/4 in
at shaft end U 3) TE perm. Nm – 314 – – 602 – – –
ANSI B92.1a-1976 (SAE J744) 1 in 1 1/4 in
Through-drive torque, max. 4) TD perm. Nm 231 314 521 660 822 1110 1760 2230
1) Efficiency not considered
2) For drive shafts with no radial force
3) Shaft “U“ is only permitted as a shaft end on the 2nd pump in a combination pump of the same size.
4) Note max. input torque for shaft S!

Torque distribution

T1 T2

TE
1. Pumpe
1st pump 2.2nd
Pumpe
pump

TD
RE 92003/06.09 | A4VG Bosch Rexroth AG 9/64

High-Pressure Relief Valves

Setting ranges Setting diagram

High-pressure relief valve, pmax

Differential pressure
≥30 bar
direct operated (size 28...56) setting ΔpHP
Safety

Differential pressure ΔpHD

Setting range for valve 3, 5 420 bar Setting value
Δp 270 - 420 bar

Operating pressure pA, B

400 bar 1) pressure cut-off
(refer to ordering code)
360 bar

HD valve setting
Δp Drive
at port A, B

design
340 bar
320 bar
pSp
300 bar
270 bar

pSp
Setting range for valve 4, 6 250 bar Boost
Δp 100 - 250 bar pressure qv max
230 bar 1) qV1
(refer to ordering code) (n = 1000 rpm) (n = nmax)
200 bar
150 bar
100 bar
Note: valve is set at
n = 1000 rpm and Vg max (qv 1)
High-pressure relief valve, Differential pressure
pilot operated (size 71...250) setting ΔpHP
Example: boost pressure 30 bar; operating pressure 400 bar
Setting range for valve 1 420 bar
Operating pressure pA,B - boost pressure pSp + safety = differential pressure ΔpHD
Δp 100 - 420 bar 400 bar 1) 400 bar - 30 bar + 30 bar = 400 bar
(refer to ordering code)
360 bar
340 bar
320 bar Bypass function
300 bar
The bypass function can only be used for short periods with
270 bar reduced displacement, e.g. to tow a vehicle out of an immedi-
250 bar ate danger zone.
230 bar
Note:
200 bar The bypass function and the pilot operated high-pressure
150 bar valves (size 71...250) are not shown in these circuit diagrams.
100 bar
1) Standard differential pressure setting. The valves will be set
to this value if the differential pressure is not specified on
ordering.

Please state in plain text when ordering:

(only the ΔpHP values shown in the table are possible)
High-pressure relief valve A
Differential pressure setting : ΔpHD = ... bar
opening pressure of the HD valve (at qV 1): pmax = ... bar
(pmax = ΔpHD + pSp)
High-pressure relief valve B
Differential pressure setting : ΔpHD = ... bar
opening pressure of the HD valve (at qV 1): pmax = ... bar
(pmax = ΔpHD + pSp)
10/64 Bosch Rexroth AG A4VG | RE 92003/06.09

Pressure Cut-Off, D
The pressure cut-off corresponds to a pressure regulation
which, after reaching the set pressure, adjusts the displace-
ment of the pump to Vg min.
This valve prevents the operation of the high-pressure relief
valves when accelerating or decelerating.
Both the pressure peaks occurring when the swashplate is
swiveled rapidly and also the maximum pressure in the system
are safeguarded by the high-pressure relief valves.
The setting range of the pressure cut-off may be anywhere
within the entire operating pressure range. However, it must
be set 30 bar lower than the setting of the high-pressure relief
valves (see setting diagram, page 9).
Please state the setting value of the pressure cut-off in plain
text when ordering.

Circuit diagram with pressure cut-off.

Example: Electric two-position control, EZ1D/EZ2D
RE 92003/06.09 | A4VG Bosch Rexroth AG 11/64

NV - Version Without Control Unit

The mounting surface for the control unit is machined and is Standard version 1)
sealed with the standard seal for control units and a cover
plate. This version is ready for retrofitting to control units (HD,
HW, EP, EZ). When used directly for “DA” control and in com-
binations with “DA” control, the appropriate adjustments must
be made to the spring assembly of the adjusting cylinder and
control plate.

1) Size 28 and 250 without port Fa1 and FS

DG - Hydraulic Control, Direct Operated

With the Direct Operated Hydraulic Control (DG), pump displace- Standard version 1)
ment is controlled by a hydraulic control pressure applied directly
to the stroke cylinder through either the X1 or X2 port. In this way,
the swashplate and thus the displacement is switchable from
Vg = 0 to Vg max. Each direction of through put flow is assigned to
a port.
Pilot pressure 0 bar position Vg = 0
The required pilot pressure for position Vg max depends on
operating pressure and speed.
Max. permissible pilot pressure 40 bar
Version with DA control valve 1)
For project planning, please consult us.
The pressure cut-off and the DA control valve only become
effective if the pilot control unit used for controlling the DG
control is supplied from port PS.
Assignment of direction of rotation – control – direction of
through put flow
refer to HD control, page 12 (control pressure X1; X2).
1) Size 28 and 250 without port Fa1 and FS

EZ - Electric Two-Position Control, With Switching Solenoid

By energizing or de-energizing a control current to either switching Assignment direction of rotation - Control - Direction of through
solenoid a or b, the stroke cylinders of the pump are supplied with put flow DA control see page 16.
control pressure by the EZ control unit. In this way, the swashplate
and thus the displacement is switchable without intermediate settings Standard version 1)
from Vg = 0 to Vg max. Each direction of through put flow is assigned
to a solenoid.

Solenoid
EZ1 EZ2
technical data
Voltage 12 V DC (±20 %) 24 V DC (±20 %)
Neutral position Vg = 0 de-energized de-energized
Position Vg max current energized current energized
Nominal resistance
5.5 Ω 21.7 Ω
(at 20°C)
Nominal power 26.2 W 26.5 W
Current required, 1) Size 28 and 250 without port Fa1 and FS
1.32 A 0.67 A
minimum effective
Actuated time 100 % 100 %
Type of protection see range of connectors on page 60
Standard: switching solenoid without manual emergency operation.
On request: manual emergency operation with spring reset available.
12/64 Bosch Rexroth AG A4VG | RE 92003/06.09

HD - Hydraulic Control, Pilot-Pressure Related

Depending on the pressure difference of the pilot pressure pSt
in the two control lines (ports Y1 and Y2), the stroke cylinder of Assignment
the pump is supplied with control pressure via the HD control Direction of rotation - Control - Direction of through put flow
unit. Thus, the swashplate – and, therefore, the displacement Pilot Control Through Operating
– to be infinitely adjustable. A different through put flow direc- Size
pressure pressure put flow pressure
tion is associated with each control line.
Y1 X1 A to B MB
If the pump is also equipped with a DA control valve 28...56
Y2 X2 B to A MA

Direction of rotation
(see page 17), automotive operation is possible for travel drives.

cw
pSt in bar Y1 X1 B to A MA
71...250
18 Y2 X2 A to B MB
16
14 Y1 X1 B to A MA
12 28...56
10 Y2 X2 A to B MB

ccw
8
6 Y1 X1 A to B MB
71...250
4 Y2 X2 B to A MA
2
0
1,0 0,8 0,6 0,4 0,2 0 0,2 0,4 0,6 0,8 1,0 Sizes 28, 250 Sizes 40...180
Vg 2 Vg
Vg max 4 Vg max B
6 MB (Size 250)
8 B MB
10
12
14 MA
16 A
18 MA (Size 250) A
pSt in bar
View Z
Vg displacement at pSt X1 Z
MA (Size 28) X1 Y1
Vg max displacement at pSt = 18 bar
ccw ccw
Pilot pressure pSt = 6 - 18 bar at ports Y1, Y2 B

Start of control 6 bar

cw cw
End of control 18 bar (max. displacement Vg max) X2 X2 Y2
MB (Size 250) MB (Size 28)
Please note:
The external control device must vent the Y1 and Y2 ports to
Standard version1)
tank pressure in neutral.

Note
The spring return feature in the control unit is not a safety
device
The spool valve inside the control unit can get stuck in an
undefined position by internal contamination (contaminated
hydraulic fluid, abrasion or residual contamination from
system components). As a result, the axial piston unit can no
longer supply the flow specified by the operator.
Check whether your application requires that remedial meas-
ures be taken on your machine in order to bring the driven Version with DA control valve1)
consumer into a safe position (e.g. immediate stop).

1) Size 28 and 250 without port Fa1 and FS

RE 92003/06.09 | A4VG Bosch Rexroth AG 13/64

HW - Hydraulic Control, Mechanical Servo

Depending on the actuation direction a or b of the control
lever, the stroke cylinder of the pump is supplied with control Assignment
pressure via the HW control unit. Thus, the swashplate – and, Direction of rotation - Control - Direction of through put flow
therefore, the displacement – to be infinitely adjustable. A Lever Control Through Operating
different through put flow direction is associated with each Size
direction pressure put flow pressure
direction of control lever actuation.
a X2 B to A MA
If the pump is also equipped with a DA control valve 28...56
b X1 A to B MB

Direction of rotation
(see page 17), automotive operation is possible for travel

cw
drives. a X2 A to B MB
71...250
β in ° b X1 B to A MA
40
35 a X2 A to B MB
30 28...56
25 b X1 B to A MA

ccw
20
15 a X2 B to A MA
71...250
10 b X1 A to B MB
5
0
Vg 1,0 0,8 0,6 0,4 0,2 5 0 0,2 0,4 0,6 0,8 1,0 V
g Sizes 28, 250 Sizes 40...180
Vg max 10 Vg max B
15 MB (Size 250)
20 B MB
25
30
35 MA
A
40
MA (Size 250) A
β in °
Swivel angle β at the control lever for deflection: Z
View Z
X1 X1
MA (Size 28)
Start of control at β = 3° ccw ccw
a a
End of control at β = 29° (max. displacement Vg max)
b b
Mech. stop: sizes 28...71________ ±40° cw cw
sizes 90...250_______ ±35° X2 MB (Size 250) MB (Size 28) X2

The maximum required torque at the lever is 170 Ncm. To prevent Neutral position switch Neutral position switch
damage to the HW control module a positive mechanical stop
must be provided for the HW control linkage. Standard version 1)
Note:
Spring centering enables the pump to move automatically into
neutral position (Vg = 0) as soon as there is no longer any
torque on the control lever of the HW control unit (regardless
of deflection angle).

Variation: Neutral position switch, L

The switch contact in the neutral position switch is closed
when the control lever on the HW control unit is in its neutral
position. The switch opens if the control lever is moved out of
neutral in either direction.
The neutral position switch provides a safety function for drive
units that require zero flow under certain operating conditions Version with DA control valve and neutral position switch 1)
(e.g. starting diesel engines).

Technical data of neutral position switch

Load capacity 20 A (continuous), without switching operating
Switching 15 A / 32 V (ohm´s load)
capacity 4 A / 32 V (inductive load)
Connector DEUTSCH connector DT04-2P-EP04
version (mating connector see page 60)
1) Size 28 and 250 without port Fa1 and FS
14/64 Bosch Rexroth AG A4VG | RE 92003/06.09

EP - Electric Control, With Proportional Solenoid

Depending on the preselected current I at the two proportional
solenoids (a and b), the stroke cylinder of the pump is sup- Note
plied with control pressure via the EP control unit. Thus, the The spring return feature in the control unit is not a safety
swashplate – and, therefore, the displacement – to be infinitely device
adjustable. One direction of through put flow is assigned to
each proportional solenoid. The spool valve inside the control unit can get stuck in an
undefined position by internal contamination (contaminated
If the pump is also equipped with a DA control valve hydraulic fluid, abrasion or residual contamination from
(see page 17), automotive operation is possible for travel drives. system components). As a result, the axial piston unit can no
I in mA(solenoid a) longer supply the flow specified by the operator.
1200 EP3 Check whether your application requires that remedial meas-
1000 ures be taken on your machine in order to bring the driven
800 consumer into a safe position (e.g. immediate stop).
600 EP4
400
200
0 Assignment
Vg 1,0 0,8 0,6 0,4 0,2 0 0,2 0,4 0,6 0,8 1,0 V
g
Direction of rotation - Control - Direction of through put flow
Vg max 200 Vg max
400 Actuation Control Through Operating
EP4 600 Size
of Solenoid pressure put flow pressure
800
1000 a X1 A to B MB
EP3 1200 28...56
b X2 B to A MA
Direction of rotation
cw

I in mA (solenoid b) a X1 B to A MA
71...250
Solenoid technical data EP3 EP4 b X2 A to B MB
Voltage 12 V DC (±20 %) 24 V DC (±20 %) a X1 B to A MA
28...56
Control current b X2 A to B MB
ccw

Start of control at Vg 0 400 mA 200 mA a X1 A to B MB

End of control at Vg max 1200 mA 600 mA 71...250
b X2 B to A MA
Limiting current 1.54 A 0.77 A
Nominal resistance
5.5 Ω 22.7 Ω
(at 20 °C)
Sizes 28, 250 Sizes 40...180
Dither frequency 100 Hz 100 Hz
B
Actuated time 100 % 100 % MB (Size 250)
B MB
Type of protection see range of connectors on page 60

MA
A
The following electronic controllers and amplifiers are available
MA (Size 250) A
for actuating the proportional solenoids (details also available
at www.boschrexroth.com/mobile-electronics): Proportional solenoid a Proportional solenoid a
View Z
X Z M
– BODAS controller RC 1 A (Size 28) X1
series 20________________________________ RE 95200 ccw ccw
series 21________________________________ RE 95201 B
series 22________________________________ RE 95202
series 30________________________________ RE 95203 cw cw
and application software X2 X2
MB (Size 250) MB (Size 28)
– Analog amplifier RA_______________________ RE 95230 Proportional solenoid b Proportional solenoid b

Standard: proportional solenoid without manual emergency operation.

On request: manual emergency operation with spring reset available.
RE 92003/06.09 | A4VG Bosch Rexroth AG 15/64

EP - Electric Control, With Proportional Solenoid

Standard version1)

Version with DA control valve1)

1) Size 28 and 250 without port Fa1 and FS

16/64 Bosch Rexroth AG A4VG | RE 92003/06.09

DA - Hydraulic Control, Speed Related

The DA control is an engine speed-dependent, or automotive, Assignment
type control system. The built-in DA regulating cartridge ge- Direction of rotation - Control - Direction of through put flow
nerates a pilot pressure that is proportional to pump (engine)
drive speed. This pilot pressure is directed to the positioning Actuation Control Through Operating
Size
cylinder of the pump by a solenoid actuated 4/3 way directional of Solenoid pressure put flow pressure
valve. Pump displacement is infinitely variable in each direc- a X2 B to A MA
tion of flow, and is influenced by both pump drive speed and 28...56
discharge pressure. Flow direction (i.e. machine forward or b X1 A to B MB

Direction of rotation
cw
reverse) is controlled by energizing solenoid a or b. a X2 A to B MB
71...250
Increasing pump drive speed generates a higher pilot pressure b X1 B to A MA
from the DA cartridge, with a subsequent increase in pump
a X2 A to B MB
flow and/or pressure. 28...56
b X1 B to A MA

ccw
Dependent on the selected pump operating characteristics,
increasing system pressure (i.e. machine load) causes the a X2 B to A MA
pump to swivel back towards a smaller displacement. Engine 71...250
b X1 A to B MB
overload (anti-stall) protection is achieved by the combination
of this pressure-related pump de-stroking, and the reduction of
pilot pressure as the engine speed drops.
Any additional power requirement, such as implement hy- Sizes 28, 250 Sizes 40...180
draulics, may result in further engine pull down. This causes a
further reduction in pilot pressure and therefore pump displace- B
MB (Size 250)
ment. Automatic power division and full utilization of available B MB
power is thus achived for both the vehicle transmission and
the implement hydraulics, with priority given to the implement A
hydraulics. MA
MA (Size 250)
To provide controllable reduced vehicle speed operation when A
Switching solenoid a View Z
high engine speeds are required for fast implement hydraulics, Switching solenoid a
X1 Z
various inching options are available. MA (Size 28) X1
ccw
The DA regulating cartridge can also be used in pumps with ccw
conventional control devices, such as EP, HW or HD, to provi- B
de an engine anti-stall function, or as a combination of automo-
cw
tive and displacement control functions. cw
X2 MB (Size 250) MB (Size 28)
X2
Application of the DA control is only appropriate on certain Switching solenoid b
types of vehicle drive systems, and requires a review of the Switching solenoid b
engine and vehicle parameters to ensure proper application
of the pump, and safe and efficient machine operation. All DA Hydraulic control, speed related,
applications must therefore be reviewed by a Rexroth Applica- DA control valve, fixed setting, DA1D2/DA2D2 1)
tion Engineer.

Solenoid technical data DA1 DA2

Voltage 12 V DC (±20 %) 24 V DC (±20 %)
Neutral position Vg 0 de-energized de-energized
Position Vg max current current
energized energized
Nominal resistance
5.5 Ω 21.7 Ω
(at 20 °C)
Nominal power 26.2 W 26.5 W
Current required,
1.32 A 0.67 A
minimum effective 1) Size 28 and 250 without port Fa1 and FS
Actuated time 100 % 100 %
Type of protection see range of connectors on page 60
Standard: switching solenoid without manual emergency operation.
On request: manual emergency operation with spring reset available.
RE 92003/06.09 | A4VG Bosch Rexroth AG 17/64

DA - Hydraulic Control, Speed Related

Function and control of DA control calves Circuit diagrams 1):
DA1D3/DA2D3
DA control valve, fixed setting (2)
Hydraulic control, speed related, DA control valve, mech. adjust-
Pilot pressure is generated in relation to drive speed. When or- able with position lever
dering, please state in plain text: Start of control (set at factory).

DA control valve, mechanically adjustable with position lever

(3)
Pilot pressure is generated in relation to drive speed. When or-
dering, please state in plain text: Start of control (set at factory).
Pilot pressure may be reduced, independently of drive speed,
through mechanical operation of the position lever (inch function).
Max. perm. operating torque at the position lever Tmax = 4 Nm DA1D4/DA2D4
Max. angle of rotation 70°, lever position: any. Hydraulic control, speed related,
Variation 3R_______ actuating direction of the position lever DA control valve, fixed setting, with hydraulic inch valve
- clockwise
With throttle valve,
Variation 3L_______ a ctuating direction of the position lever sizes 28...71
- counterclockwise

DA control valve, fixed setting and hydraulic inch valve

mounted, (4, 8)
(only for pumps with DA control unit)
– Version with throttle valve sizes 28, 40, 56, 71
– Version with pressure-reducing valve sizes 90, 125, 180, 250
Permits the pilot pressure to be reduced independently of the
drive speed via hydraulic control (port Z). With pressure-reducing valve,
sizes 90...250
Variation 4:
Control at port Z by means of brake fluid according to
ISO 4925 (no mineral oil) from the vehicle braking system
(hydraulically linked with the service brake).
Variation 8:
Control at port Z by means of brake fluid based on mineral oil.

DA control valve with fixed setting, ports for pilot control

device as inch valve (7)
Any reduction of pilot pressure, independent from the drive
speed through the mechanical operation of the pilot control
device. DA1D7/DA2D7

The pilot control device is installed separately from the pump (for Hydraulic control, speed related, DA
example in the driver’s cabin) and connected with the pump by 2 DA control valve, fixed setting, with separately installed pilot
hydraulic control lines via ports PS and Y. control device as inch valve

A suitable pilot control device must be ordered separately and is Pilot control device
not included in supply. (is not included in supply)

Detailed information is available from our sales department and

on our website www.boschrexroth.com/da-control. Use our
computer program to work out the input design that meets your
needs. A DA control must be approved by Rexroth.
Note: see page 61 for rotary inch valves.

1) Size 28 and 250 without port Fa1 and FS

18/64 Bosch Rexroth AG A4VG | RE 92003/06.09

Before finalizing your design, please request a

Unit Dimensions, Size 28 binding installation drawing. Dimensions in mm.

Version without control unit NV

Standard: suction port S at bottom (10)
Option: suction port S at top (13): port plate turned through 180°

Pressure cut-off Mechanical centering adjustment

HD valve:
with bypass
without bypass

Flange SAE J744

101-2 (B) HD valve:
without bypass
with bypass

Detail W

Boost
pressure valve
RE 92003/06.09 | A4VG Bosch Rexroth AG 19/64

Before finalizing your design, please request a

Unit Dimensions, Size 28 binding installation drawing. Dimensions in mm.

Shaft ends
Z Splined shaft DIN 5480 S Splined shaft 1in
W25x1.25x30x18x9g 15T 16/32DP 3)
(SAE J744 – 25-4 (B-B))
1)2)

Ports
A, B service line ports (high-pressure series) SAE J518 3/4 in
fixing thread A/B DIN 13 M10x1.5; 17 deep 2)
T1 case drain or fill DIN 3852 M22x1.5; 14 deep 210 Nm 2)
T2 case drain 4) DIN 3852 M22x1.5; 14 deep 210 Nm 2)
MA, M B pressure gauge - operating pressure A, B 4) DIN 3852 M12x1.5; 12 deep 50 Nm 2)
R air bleed 4) DIN 3852 M12x1.5; 12 deep 50 Nm 2)
S boost suction port DIN 3852 M33x2; 18 deep 540 Nm 2)
X1, X2 port for control pressures (before orifice) 4) DIN 3852 M12x1.5; 12 deep 50 Nm 2)
G pressure port for auxiliary circuits 4) DIN 3852 M12x1.5; 12 deep 50 Nm 2)
PS control pressure supply 4) DIN 3852 M14x1.5; 12 deep 80 Nm 2)
Fa filter output 4) DIN 3852 M18x1.5; 12 deep 140 Nm 2)
Fe filter input 4) DIN 3852 M18x1.5; 12 deep 140 Nm 2)
MH port for balanced high pressure 4) DIN 3852 M12x1.5; 12 deep 50 Nm 2)
Y1, Y2 remote control ports (only HD) DIN 3852 M14x1.5; 12 deep 80 Nm 2)
Z pilot pressure port (only DA4/8) 4) DIN 3852 M10x1; 8 deep 30 Nm 2)
Y pilot pressure port (only DA7) DIN 3852 M14x1.5; 12 deep 80 Nm 2)
1) Center bore acc. to DIN 332 (thread acc. to DIN 13)
2) Please observe the general notes for the max. tightening torques on page 64
3) ANSI B92.1a-1976, 30° pressure angle, flat root; side fit, tolerance class 5
4) Plugged
20/64 Bosch Rexroth AG A4VG | RE 92003/06.09

Before finalizing your design, please request a

Unit Dimensions, Size 28 binding installation drawing. Dimensions in mm.

Hydraulic control, pilot-pressure related, HD Hydraulic control, mechanical servo, HW

63
50 9
27 ø8

8
142
Version with
neutral position
switch, HWL
a

20 40°
40°

147
b
113.4

Electric two-position control with switching solenoid, EZ Electric control with proportional solenoid, EP

Hydraulic control, direct operated, DG

RE 92003/06.09 | A4VG Bosch Rexroth AG 21/64

Before finalizing your design, please request a

Unit Dimensions, Size 28 binding installation drawing. Dimensions in mm.

Hydraulic control, speed related, DA

Control valve, fixed setting, DA2 Control valve, mech. adjustable with position lever, DA3

Detail W
Actuating direction
Detail W “counterclockwise“ (3L)

Actuating direction
“clockwise“ (3R)
Control valve, fixed setting and hydraulic inch valve mounted, Control valve, fixed setting and ports for pilot control device,
DA4/DA8 DA7

Detail W Detail W
22/64 Bosch Rexroth AG A4VG | RE 92003/06.09

Before finalizing your design, please request a

Unit Dimensions, Size 40 binding installation drawing. Dimensions in mm.

Version without control unit NV

Standard: suction port S at bottom (02)
Option: suction port S at top (03): port plate turned through 180°

Pressure cut-off
HD valve:
with bypass
without bypass
Mechanical
centering
adjustment

Flange SAE J744

127-2 (C) HD valve:
without bypass
with bypass

Boost pressure valve

Detail W

M8x1.25; 11
deep DIN 13
RE 92003/06.09 | A4VG Bosch Rexroth AG 23/64

Before finalizing your design, please request a

Unit Dimensions, Size 40 binding installation drawing. Dimensions in mm.

Shaft ends
Z Splined shaft DIN 5480 A Splined shaft DIN 5480 S Splined shaft 1 1/4 in U Splined shaft 1in
W30x2x30x14x9g W35x2x30x16x9g 14T 12/24DP 3) 15T 16/32DP 3)
(SAE J744 – 32-4 (C)) (SAE J744 – 25-4 (B-B))

1)2)
1)2)

Ports
A, B service line ports (high-pressure series) SAE J518 3/4 in –
fixing thread A/B DIN 13 M10x1.5; 17 deep 2)
T1 case drain or fill DIN 3852 M22x1.5; 14 deep 210 Nm 2)
T2 case drain 4) DIN 3852 M22x1.5; 14 deep 210 Nm 2)
MA, M B pressure gauge - operating pressure A, B 4) DIN 3852 M12x1.5; 12 deep 50 Nm 2)
R air bleed 4) DIN 3852 M12x1.5; 12 deep 50 Nm 2)
S boost suction port DIN 3852 M33x2; 18 deep 540 Nm 2)
X1, X2 port for control pressures (before orifice) 4) DIN 3852 M12x1.5; 12 deep 50 Nm 2)
G pressure port for auxiliary circuits 4) DIN 3852 M12x1.5; 12 deep 50 Nm 2)
PS control pressure supply 4) DIN 3852 M14x1.5; 12 deep 80 Nm 2)
Fa filter output 4) DIN 3852 M18x1.5; 12 deep 140 Nm 2)
Fa1 filter output (mountable filter) 4) DIN 3852 M18x1.5; 12 deep 140 Nm 2)
Fe filter input 4) DIN 3852 M18x1.5; 12 deep 140 Nm 2)
FS port from filter to suction line (cold start) 4) DIN 3852 M18x1.5; 12 deep 140 Nm 2)
MH port for balanced high pressure 4) DIN 3852 M12x1.5; 12 deep 50 Nm 2)
Y1, Y2 remote control ports (only HD) DIN 3852 M14x1.5; 12 deep 80 Nm 2)
Z pilot pressure port (only DA4/8) 4) DIN 3852 M10x1; 8 deep 30 Nm 2)
Y pilot pressure port (only DA7) DIN 3852 M14x1.5; 12 deep 80 Nm 2)
1) Center bore acc. to DIN 332 (thread acc. to DIN 13)
2) Please observe the general notes for the max. tightening torques on page 64
3) ANSI B92.1a-1976, 30° pressure angle, flat root; side fit, tolerance class 5
4) Plugged
24/64 Bosch Rexroth AG A4VG | RE 92003/06.09

Before finalizing your design, please request a

Unit Dimensions, Size 40 binding installation drawing. Dimensions in mm.

Hydraulic control, pilot-pressure related, HD Hydraulic control, mechanical servo, HW

63
50 9
27 ø8

8
142
Version with
neutral position

40°
a switch, HWL

20
40°
b

147
111.4

Electric two-position control with switching solenoid, EZ Electric control with proportional solenoid, EP

Hydraulic control, direct operated, DG

RE 92003/06.09 | A4VG Bosch Rexroth AG 25/64

Before finalizing your design, please request a

Unit Dimensions, Size 40 binding installation drawing. Dimensions in mm.

Hydraulic control, speed related, DA

Control valve, fixed setting, DA2 Control valve, mech. adjustable with position lever, DA3

Actuating direction
“counterclockwise’
(3L)

Actuating direction
“clockwise“ (3R)

Control valve, fixed setting and hydraulic inch valve mounted, Control valve, fixed setting and ports for pilot control device,
DA4/DA8 DA7
26/64 Bosch Rexroth AG A4VG | RE 92003/06.09

Before finalizing your design, please request a

Unit Dimensions, Size 56 binding installation drawing. Dimensions in mm.

Version without control unit NV

Standard: suction port S at bottom (02)
Option: suction port S at top (03): port plate turned through 180°

Pressure cut-off
HD valve:
with bypass
Mechanical without bypass
centering
adjustment

Flange SAE J744

127-2 (C) HD valve:
without bypass
with bypass

Boost pressure valve

Detail W
M8x1.25; 11
deep DIN 13
RE 92003/06.09 | A4VG Bosch Rexroth AG 27/64

Before finalizing your design, please request a

Unit Dimensions, Size 56 binding installation drawing. Dimensions in mm.

Shaft ends
Z Splined shaft DIN 5480 A Splined shaft DIN 5480 S Splined shaft 1 1/4 in T Splined shaft 1 3/8in
W30x2x30x14x9g W35x2x30x16x9g 14T 12/24DP 3) 21T 16/32DP 3)
(SAE J744 – 32-4 (C))

1)2)
1)2)

Ports
A, B service line ports (high-pressure series) SAE J518 3/4 in
fixing thread A/B DIN 13 M10x1.5; 17 deep 2)
T1 case drain or fill DIN 3852 M22x1.5; 14 deep 210 Nm 2)
T2 case drain 4) DIN 3852 M22x1.5; 14 deep 210 Nm 2)
MA, M B pressure gauge - operating pressure A, B 4) DIN 3852 M12x1.5; 12 deep 50 Nm 2)
R air bleed 4) DIN 3852 M12x1.5; 12 deep 50 Nm 2)
S boost suction port DIN 3852 M33x2; 18 deep 540 Nm 2)
X1, X2 port for control pressures (before orifice) 4) DIN 3852 M12x1.5; 12 deep 50 Nm 2)
G pressure port for auxiliary circuits 4) DIN 3852 M14x1.5; 12 deep 80 Nm 2)
PS control pressure supply 4) DIN 3852 M14x1.5; 12 deep 80 Nm 2)
Fa filter output 4) DIN 3852 M18x1.5; 12 deep 140 Nm 2)
Fa1 filter output (mountable filter) 4) DIN 3852 M18x1.5; 12 deep 140 Nm 2)
Fe filter input 4) DIN 3852 M18x1.5; 12 deep 140 Nm 2)
FS port from filter to suction line (cold start) 4) DIN 3852 M18x1.5; 12 deep 140 Nm 2)
MH port for balanced high pressure 4) DIN 3852 M12x1.5; 12 deep 50 Nm 2)
Y1, Y2 remote control ports (only HD) DIN 3852 M14x1.5; 12 deep 80 Nm 2)
Z pilot pressure port (only DA4/8) 4) DIN 3852 M10x1; 8 deep 30 Nm 2)
Y pilot pressure port (only DA7) DIN 3852 M14x1.5; 12 deep 80 Nm 2)
1) Center bore acc. to DIN 332 (thread acc. to DIN 13)
2) Please observe the general notes for the max. tightening torques on page 64
3) ANSI B92.1a-1976, 30° pressure angle, flat root; side fit, tolerance class 5
4) Plugged
28/64 Bosch Rexroth AG A4VG | RE 92003/06.09

Before finalizing your design, please request a

Unit Dimensions, Size 56 binding installation drawing. Dimensions in mm.

Hydraulic control, pilot-pressure related, HD Hydraulic control, mechanical servo, HW

63
50 9
27 ø8

8
154.6
Version with
neutral position
a

40°
switch, HWL

20
40°
b

147
120.3

Electric two-position control with switching solenoid, EZ Electric control with proportional solenoid, EP

Hydraulic control, direct operated, DG

RE 92003/06.09 | A4VG Bosch Rexroth AG 29/64

Before finalizing your design, please request a

Unit Dimensions, Size 56 binding installation drawing. Dimensions in mm.

Hydraulic control, speed related, DA

Control valve, fixed setting, DA2 Control valve, mech. adjustable with position lever, DA3

Actuating direction
“counterclockwise“
(3L)

Actuating direction
“clockwise“ (3R)

Control valve, fixed setting and hydraulic inch valve mounted, Control valve, fixed setting and ports for pilot control device,
DA4/DA8 DA7
30/64 Bosch Rexroth AG A4VG | RE 92003/06.09

Before finalizing your design, please request a

Unit Dimensions, Size 71 binding installation drawing. Dimensions in mm.

Version without control unit NV

Standard: suction port S at bottom (02)
Option: suction port S at top (03): port plate turned through 180°

Pressure cut-off

HD valve
with bypass
Mechanical
centering
adjustment

Flange SAE J744

127-2 (C)
Boost pressure valve

HD valve
with bypass
Detail W
M8x1.25; 10
deep DIN 13
RE 92003/06.09 | A4VG Bosch Rexroth AG 31/64

Before finalizing your design, please request a

Unit Dimensions, Size 71 binding installation drawing. Dimensions in mm.

Shaft ends
Z Splined shaft DIN 5480 A Splined shaft DIN 5480 S Splined shaft 1 1/4 in T Splined shaft 1 3/8in
W35x2x30x16x9g W40x2x30x18x9g 14T 12/24DP 3) 21T 16/32DP 3)
(SAE J744 – 32-4 (C))

1)2)
1)2)

Ports
A, B service line ports (high-pressure series) SAE J518 1 in
fixing thread A/B DIN 13 M12x1.75; 17 deep 2)
T1 case drain or fill DIN 3852 M26x1.5; 16 deep 230 Nm 2)
T2 case drain 4) DIN 3852 M26x1.5; 16 deep 230 Nm 2)
MA, M B pressure gauge - operating pressure A, B 4) DIN 3852 M12x1.5; 12 deep 50 Nm 2)
R air bleed 4) DIN 3852 M12x1.5; 12 deep 50 Nm 2)
S boost suction port DIN 3852 M42x2; 20 deep 720 Nm 2)
X1, X2 port for control pressures (before orifice) 4) DIN 3852 M12x1.5; 12 deep 50 Nm 2)
G pressure port for auxiliary circuits 4) DIN 3852 M18x1.5; 12 deep 140 Nm 2)
PS control pressure supply 4) DIN 3852 M14x1.5; 12 deep 80 Nm 2)
Fa filter output 4) DIN 3852 M26x1.5; 16 deep 230 Nm 2)
Fa1 filter output (mountable filter) 4) DIN 3852 M22x1.5; 14 deep 210 Nm 2)
Fe filter input 4) DIN 3852 M22x1.5; 14 deep 210 Nm 2)
FS port from filter to suction line (cold start) 4) DIN 3852 M22x1.5; 14 deep 210 Nm 2)
MH port for balanced high pressure 4) DIN 3852 M12x1.5; 12 deep 50 Nm 2)
Y1, Y2 remote control ports (only HD) DIN 3852 M14x1.5; 12 deep 80 Nm 2)
Z pilot pressure port (only DA4/8) 4) DIN 3852 M10x1; 8 deep 30 Nm 2)
Y pilot pressure port (only DA7) DIN 3852 M14x1.5; 12 deep 80 Nm 2)
1) Center bore acc. to DIN 332 (thread acc. to DIN 13)
2) Please observe the general notes for the max. tightening torques on page 64
3) ANSI B92.1a-1976, 30° pressure angle, flat root; side fit, tolerance class 5
4) Plugged
32/64 Bosch Rexroth AG A4VG | RE 92003/06.09

Before finalizing your design, please request a

Unit Dimensions, Size 71 binding installation drawing. Dimensions in mm.

Hydraulic control, pilot-pressure related, HD Hydraulic control, mechanical servo, HW

63
50 9
27 ø8

8
165.9
Version with
neutral position
a

40°
switch, HWL

20
40°
b

147
163.5

Electric two-position control with switching solenoid, EZ Electric control with proportional solenoid, EP

Hydraulic control, direct operated, DG

RE 92003/06.09 | A4VG Bosch Rexroth AG 33/64

Before finalizing your design, please request a

Unit Dimensions, Size 71 binding installation drawing. Dimensions in mm.

Hydraulic control, speed related, DA

Control valve, fixed setting, DA2 Control valve, mech. adjustable with position lever, DA3
Actuating direction
“counterclockwise“
(3L)

Actuating direction
“clockwise“ (3R)

Control valve, fixed setting and hydraulic inch valve mounted, Control valve, fixed setting and ports for pilot control device,
DA4/DA8 DA7
34/64 Bosch Rexroth AG A4VG | RE 92003/06.09

Before finalizing your design, please request a

Unit Dimensions, Size 90 binding installation drawing. Dimensions in mm.

Version without control unit NV

Standard: suction port S at bottom (02)
Option: suction port S at top (03): port plate turned through 180°

Pressure cut-off
HD valve
Mechanical with bypass
centering
adjustment

Flange SAE J744

152-2/4 (D)
Boost pressure valve
HD valve
with bypass

Detail W
M8x1.25; 10
deep DIN 13
RE 92003/06.09 | A4VG Bosch Rexroth AG 35/64

Before finalizing your design, please request a

Unit Dimensions, Size 90 binding installation drawing. Dimensions in mm.

Shaft ends
Z Splined shaft DIN 5480 A Splined shaft DIN 5480 S Splined shaft 1 3/4 in U Splined shaft 1 1/4in
W35x2x30x16x9g W45x2x30x21x9g 13T 8/16 DP 3) 14T 12/24DP 3)
(SAE J744 – 44-4 (D)) (SAE J744 – 32-4 (C))

1)2)
1)2)

Ports
A, B service line ports (high-pressure series) SAE J518 1 in
fixing thread A/B DIN 13 M12x1.75; 17 deep 2)
T1 case drain or fill DIN 3852 M26x1.5; 16 deep 230 Nm 2)
T2 case drain 4) DIN 3852 M26x1.5; 16 deep 230 Nm 2)
MA, M B pressure gauge - operating pressure A, B 4) DIN 3852 M12x1.5; 12 deep 50 Nm 2)
R air bleed 4) DIN 3852 M16x1.5; 12 deep 100 Nm 2)
S boost suction port DIN 3852 M42x2; 20 deep 720 Nm 2)
X1, X2 ports for control pressure (before orifice) 4) DIN 3852 M16x1.5; 12 deep 100 Nm 2)
G pressure port for auxiliary circuits 4) DIN 3852 M18x1.5; 12 deep 140 Nm 2)
PS control pressure supply 4) DIN 3852 M18x1.5; 12 deep 140 Nm 2)
Fa filter output 4) DIN 3852 M26x1.5; 16 deep 230 Nm 2)
Fa1 filter output (mountable filter) 4) DIN 3852 M22x1.5; 14 deep 210 Nm 2)
Fe filter input 4) DIN 3852 M22x1.5; 14 deep 210 Nm 2)
FS port from filter to suction line (cold start) 4) DIN 3852 M22x1.5; 14 deep 210 Nm 2)
MH port for balanced high pressure 4) DIN 3852 M12x1.5; 12 deep 50 Nm 2)
Y1, Y2 remote control ports (only HD) DIN 3852 M14x1.5; 12 deep 80 Nm 2)
Z pilot pressure port (only DA4/8) 4) DIN 3852 M10x1; 8 deep 30 Nm 2)
Y pilot pressure port (only DA7) DIN 3852 M18x1.5; 12 deep 140 Nm 2)
1) Center bore acc. to DIN 332 (thread acc. to DIN 13)
2) Please observe the general notes for the max. tightening torques on page 64
3) ANSI B92.1a-1976, 30° pressure angle, flat root; side fit, tolerance class 5
4) Plugged
36/64 Bosch Rexroth AG A4VG | RE 92003/06.09

Before finalizing your design, please request a

Unit Dimensions, Size 90 binding installation drawing. Dimensions in mm.

Hydraulic control, pilot-pressure related, HD Hydraulic control, mechanical servo, HW

63
50 9
27 ø8

8
191.9
Version with
neutral position
switch, HWL
a

35°
20
35°
b

147
180.7

Electric two-position control with switching solenoid, EZ Electric control with proportional solenoid, EP

Hydraulic control, direct operated, DG

RE 92003/06.09 | A4VG Bosch Rexroth AG 37/64

Before finalizing your design, please request a

Unit Dimensions, Size 90 binding installation drawing. Dimensions in mm.

Hydraulic control, speed related, DA

Control valve, fixed setting, DA2 Control valve, mech. adjustable with position lever, DA3
Actuating direction
“counterclockwise“
(3L)

Actuating direction
“clockwise“ (3R)

Control valve, fixed setting and hydraulic inch valve mounted, Control valve, fixed setting and ports for pilot control device,
DA4/DA8 DA7
38/64 Bosch Rexroth AG A4VG | RE 92003/06.09

Before finalizing your design, please request a

Unit Dimensions, Size 125 binding installation drawing. Dimensions in mm.

Version without control unit NV

Standard: suction port S at bottom (02)
Option: suction port S at top (03): port plate turned through 180°

Pressure cut-off
HD valve
Mechanical with bypass
centering
adjustment

Flange SAE J744

152-2/4 (D) Boost pressure valve
HD valve
with bypass

Detail W
M10x1.5; 12.5
deep DIN 13
RE 92003/06.09 | A4VG Bosch Rexroth AG 39/64

Before finalizing your design, please request a

Unit Dimensions, Size 125 binding installation drawing. Dimensions in mm.

Shaft ends
Z Splined shaft DIN 5480 A Splined shaft DIN 5480 S Splined shaft 1 3/4 in T Splined shaft 2in
W40x2x30x18x9g W45x2x30x21x9g 13T 8/16 DP 3) 15T 8/16DP 3)
(SAE J744 – 44-4 (D)) (SAE J744 – 50-4 (F))
1)2)

1)2)

Ports
A, B service line ports (high-pressure series) SAE J518 1 1/4 in
fixing thread A/B DIN 13 M14x2; 19 deep 2)
T1 case drain or fill DIN 3852 M33x2; 18 deep 540 Nm 2)
T2 case drain 4) DIN 3852 M33x2; 18 deep 540 Nm 2)
MA, M B pressure gauge - operating pressure A, B 4) DIN 3852 M12x1.5; 12 deep 50 Nm 2)
R air bleed 4) DIN 3852 M16x1.5; 12 deep 100 Nm 2)
S boost suction port DIN 3852 M48x2; 22 deep 960 Nm 2)
X1, X2 port for control pressures (before orifice) 4) DIN 3852 M16x1.5; 12 deep 100 Nm 2)
G pressure port for auxiliary circuits 4) DIN 3852 M22x1.5; 14 deep 210 Nm 2)
PS control pressure supply 4) DIN 3852 M18x1.5; 12 deep 140 Nm 2)
Fa filter output 4) DIN 3852 M33x2; 18 deep 540 Nm 2)
Fa1 filter output (mountable filter) 4) DIN 3852 M33x2; 18 deep 540 Nm 2)
Fe filter input 4) DIN 3852 M33x2; 18 deep 540 Nm 2)
FS port from filter to suction line (cold start) 4) DIN 3852 M33x2; 18 deep 540 Nm 2)
MH port for balanced high pressure 4) DIN 3852 M12x1.5; 12 deep 50 Nm 2)
Y1, Y2 remote control ports (only HD) DIN 3852 M14x1.5; 12 deep 80 Nm 2)
Z pilot pressure port (only DA4/8) 4) DIN 3852 M10x1; 8 deep 30 Nm 2)
Y pilot pressure port (only DA7) DIN 3852 M18x1.5; 12 deep 140 Nm 2)
1) Center bore acc. to DIN 332 (thread acc. to DIN 13)
2) Please observe the general notes for the max. tightening torques on page 64
3) ANSI B92.1a-1976, 30° pressure angle, flat root; side fit, tolerance class 5
4) Plugged
40/64 Bosch Rexroth AG A4VG | RE 92003/06.09

Before finalizing your design, please request a

Unit Dimensions, Size 125 binding installation drawing. Dimensions in mm.

Hydraulic control, pilot-pressure related, HD Hydraulic control, mechanical servo, HW

63
50 9
27 ø8

8
204.4
Version with
neutral position
a switch, HWL

35°
20
35°
b

147
193.5

Electric two-position control with switching solenoid, EZ Electric control with proportional solenoid, EP

Hydraulic control, direct operated, DG

RE 92003/06.09 | A4VG Bosch Rexroth AG 41/64

Before finalizing your design, please request a

Unit Dimensions, Size 125 binding installation drawing. Dimensions in mm.

Hydraulic control, speed related, DA

Control valve, fixed setting, DA2 Control valve, mech. adjustable with position lever, DA3
Actuating direction
“counterclockwise“ (3L)

Actuating direction
“clockwise“ (3R)

Control valve, fixed setting and hydraulic inch valve mounted, Control valve, fixed setting and ports for pilot control device,
DA4/DA8 DA7
42/64 Bosch Rexroth AG A4VG | RE 92003/06.09

Before finalizing your design, please request a

Unit Dimensions, Size 180 binding installation drawing. Dimensions in mm.

Version without control unit NV

Standard: suction port S at bottom (02)
Option: suction port S at top (03): port plate turned through 180°

Pressure cut-off
HD valve
Mechanical with bypass
centering
adjustment

Flange SAE J744 Boost pressure

165-4 (E) valve
HD valve
with bypass

Detail W

M10x1.5; 12.5
deep DIN 13
RE 92003/06.09 | A4VG Bosch Rexroth AG 43/64

Before finalizing your design, please request a

Unit Dimensions, Size 180 binding installation drawing. Dimensions in mm.

Shaft ends
Z Splined shaft DIN 5480 S Splined shaft 1 3/4 in T Splined shaft 2 1/4 in
W50x2x30x24x9g 13T 8/16 DP 3) 17T 8/16DP 3)
(SAE J744 – 44-4 (D))
1)2)

Ports
A, B service line ports (high-pressure series) SAE J518 1 1/4 in
fixing thread A/B DIN 13 M14x2; 19 deep 2)
T1 case drain or fill DIN 3852 M42x2;20 deep 720 Nm 2)
T2 case drain 4) DIN 3852 M42x2; 20 deep 720 Nm 2)
MA, M B pressure gauge - operating pressure A/B 4) DIN 3852 M12x1.5; 12 deep 50 Nm 2)
R air bleed 4) DIN 3852 M16x1.5; 12 deep 100 Nm 2)
S boost suction port DIN 3852 M48x2; 22 deep 960 Nm 2)
X1, X2 ports for control pressure (before orifice) 4) DIN 3852 M16x1.5; 12 deep 100 Nm 2)
G pressure port for auxiliary circuits 4) DIN 3852 M22x1.5; 14 deep 210 Nm 2)
PS control pressure supply 4) DIN 3852 M18x1.5; 12 deep 140 Nm 2)
Fa filter output 4) DIN 3852 M33x2; 18 deep 540 Nm 2)
Fa1 filter output (mountable filter) 4) DIN 3852 M33x2; 18 deep 540 Nm 2)
Fe filter input 4) DIN 3852 M33x2; 18 deep 540 Nm 2)
FS port from filter to suction line (cold start) 4) DIN 3852 M33x2; 18 deep 540 Nm 2)
MH port for balanced high pressure 4) DIN 3852 M12x1.5; 12 deep 50 Nm 2)
Y1, Y2 remote control ports (only HD) DIN 3852 M14x1.5; 12 deep 80 Nm 2)
Z pilot pressure port (only DA4/8) 4) DIN 3852 M10x1; 8 deep 30 Nm 2)
Y pilot pressure port (only DA7) DIN 3852 M18x1.5; 12 deep 140 Nm 2)
1) Center bore acc. to DIN 332 (thread acc. to DIN 13)
2) Please observe the general notes for the max. tightening torques on page 64
3) ANSI B92.1a-1976, 30° pressure angle, flat root; side fit, tolerance class 5
4) Plugged
44/64 Bosch Rexroth AG A4VG | RE 92003/06.09

Before finalizing your design, please request a

Unit Dimensions, Size 180 binding installation drawing. Dimensions in mm.

Hydraulic control, pilot-pressure related, HD Hydraulic control, mechanical servo, HW

63
50 9
27 ø8

8
210.5
Version with
neutral position
a switch, HWL

3 5°
20
35°
b

147
232.7

Electric two-position control with switching solenoid, EZ Electric control with proportional solenoid, EP

Hydraulic control, direct operated, DG

RE 92003/06.09 | A4VG Bosch Rexroth AG 45/64

Before finalizing your design, please request a

Unit Dimensions, Size 180 binding installation drawing. Dimensions in mm.

Hydraulic control, speed related, DA

Control valve, fixed setting, DA2

Control valve, fixed setting and hydraulic inch valve mounted, Control valve, fixed setting and ports for pilot control device,
DA4/DA8 DA7
46/64 Bosch Rexroth AG A4VG | RE 92003/06.09

Before finalizing your design, please request a

Unit Dimensions, Size 250 binding installation drawing. Dimensions in mm.

Version without control unit NV

Standard: suction port S at bottom (10)
Option: suction port S at top (13): port plate turned through 180°

Pressure cut-off

HD valve
with bypass
Boost
Flange SAE J744 pressure
165-4 (E) valve
HD valve
with bypass

Mechanical
centering
adjustment
RE 92003/06.09 | A4VG Bosch Rexroth AG 47/64

Before finalizing your design, please request a

Unit Dimensions, Size 250 binding installation drawing. Dimensions in mm.

Shaft ends
Z Splined shaft DIN 5480 S Splined shaft 1 3/4 in T Splined shaft 2 1/4 in
W55x2x30x26x9g 13T 8/16 DP 3) 17T 8/16DP 3)
(SAE J744 – 44-4 (D))
1)2)

Ports
A, B service line ports (high-pressure series) SAE J518 1 1/2 in
fixing thread A/B DIN 13 M16x2; 21 deep 2)
T1 case drain or fill DIN 3852 M42x2; 20 deep 720 Nm 2)
T2 case drain 4) DIN 3852 M42x2; 20 deep 720 Nm 2)
MA, M B pressure gauge - operating pressure A/B 4) DIN 3852 M14x1.5; 12 deep 80 Nm 2)
R air bleed 4) DIN 3852 M16x1.5; 12 deep 100 Nm 2)
S boost suction port DIN 3852 M48x2; 22 deep 960 Nm 2)
X1, X2 ports for control pressure (before orifice) 4) DIN 3852 M16x1.5; 12 deep 100 Nm 2)
G pressure port for auxiliary circuits 4) DIN 3852 M14x1.5; 12 deep 80 Nm 2)
PS control pressure supply 4) DIN 3852 M18x1.5; 12 deep 140 Nm 2)
Fa filter output 4) DIN 3852 M33x2; 18 deep 540 Nm 2)
Fe filter input 4) DIN 3852 M33x2; 18 deep 540 Nm 2)
MH port for balanced high pressure 4) DIN 3852 M14x1.5; 12 deep 80 Nm 2)
Y1, Y2 remote control ports (only HD) DIN 3852 M14x1.5; 12 deep 80 Nm 2)
Z pilot pressure port (only DA4/8) 4) DIN 3852 M10x1; 8 deep 30 Nm 2)
Y pilot pressure port (only DA7) DIN 3852 M18x1.5; 12 deep 140 Nm 2)
1) Center bore acc. to DIN 332 (thread acc. to DIN 13)
2) Please observe the general notes for the max. tightening torques on page 64
3) ANSI B92.1a-1976, 30° pressure angle, flat root; side fit, tolerance class 5
4) Plugged
48/64 Bosch Rexroth AG A4VG | RE 92003/06.09

Before finalizing your design, please request a

Unit Dimensions, Size 250 binding installation drawing. Dimensions in mm.

Hydraulic control, pilot-pressure related, HD Hydraulic control, mechanical servo, HW

63
50 9
27 ø8

8
240.5
Version with
neutral position
a switch, HWL

35°
20
35°
b

147
273.4

Electric two-position control with switching solenoid, EZ Electric control with proportional solenoid, EP

Hydraulic control, direct operated, DG

RE 92003/06.09 | A4VG Bosch Rexroth AG 49/64

Before finalizing your design, please request a

Unit Dimensions, Size 250 binding installation drawing. Dimensions in mm.

Hydraulic control, speed related, DA

Control valve, fixed setting, DA2

Detail W

Control valve, fixed setting and hydraulic inch valve mounted, Control valve, fixed setting and ports for pilot control device,
DA4/DA8 DA7

Detail W
Detail W
50/64 Bosch Rexroth AG A4VG | RE 92003/06.09

Before finalizing your design, please request a

Through Drive Dimensions binding installation drawing. Dimensions in mm.

N00 Without boost pump, without through drive

F00 With boost pump, without through drive

Size A1 (N00) A1 (F00)

28 213.9 223.4
40 220.2 235.7
56 239.4 256.4
71 279.1 293.6
90 287 301
125 320.9 326.4
180 370.9 370.9
250 398.2 409

A1

F01/K01 Flange SAE J744 – 82-2 (A)

Hub for splined shaft according to ANSI B92.1a-1976 5/8 in 9T 16/32DP 1) (SAE J744 – 16-4 (A))

M10x1.5; 15 deep 2) Size A1 (F01) A1 (K01) A2 A3 A4

M10x1.5; 16.5 deep 2) (size 180, 250) A3 28 227.9 227.9 7.5 7.5 14.5

O-ring 3) 40 239.7 234.2 9 9 18

56 261.4 254.9 10 10 18
ø17,5

71 297.6 297.6 9 10 17
ø82,55
106,4

90 304 304 9 8 –
125 330.9 330.9 10.5 9 –
180 378.4 378.4 7.5 7.5 15.5
250 426.9 426.2 11 11 18
A2
106,4 A4 Shown is the 2-bolt version
A1
Please specify in plain text whether the 2-bolt
(to mounting flange)
horizontal or 2-bolt vertical version is used.

F02/K02 Flange SAE J744 – 101-2 (B)

Hub for splined shaft according to ANSI B92.1a-1976 7/8 in 13T 16/32DP 1) (SAE J744 – 22-4 (B))
Sizes 28, 40, 56 Sizes 71, 90, 125, 180, 250 Size A1 A2 A3 A4
2)
M12x1.75; 21 deep (size 71, 90, 180, 250) 28 230.4 9.7 9.7 16.2
M12x1.75; 18 deep 2) (size 125) O-ring 3)
40 240.7 11 11 17
A3
M12x1.75; 19 deep 2) 56 262.4 12 11 19.5
71 300.6 13 9.8 17
90 305 9 11 17
ø24
ø101,6

125 330.9 10 11 17
146

180 381.4 11 11 19
250 428.9 11 11 16
Shown is the 2-bolt version
146 A2 Please specify in plain text whether the 2-bolt
174 146 A4 horizontal or 2-bolt vertical version is used.
A1
(to mounting flange)

1) 30° pressure angle, flat root; side fit, tolerance class 5

2) Thread acc. to DIN 13, please observe the general notes for the max. tightening torques on page 64
3) O-ring included in supply
RE 92003/06.09 | A4VG Bosch Rexroth AG 51/64

Before finalizing your design, please request a

Through Drive Dimensions binding installation drawing. Dimensions in mm.

F04/K04 Flange SAE J744 – 101-2 (B)

Hub for splined shaft according to ANSI B92.1a-1976 1 in 15T 16/32DP 1) (SAE J744 – 25-4 (B-B))

Sizes 28, 40, 56 Sizes 71, 90, 125, 180, 250 Size A1 A2 A3 A4
M12x1.75; 21 deep 2) (size 71, 90, 180, 250) 28 230.4 9.7 9.7 13.7
M12x1.75; 18 deep 2) (size 125) O-ring 3)
A3
40 240.7 11 9.7 16
56 262.4 13 11 18.5
M12x1.75; 19 deep2)
71 300.6 13 9.8 15.5

ø27
90 305 9 11 15

ø101,6
125 330.9 10 11 16.5

146
180 381.4 11 11 18
250 428.9 11 11 15.5
Shown is the 2-bolt version
146 A2
Please specify in plain text whether the 2-bolt
174 146 A4
A1 horizontal or 2-bolt vertical version is used.
(to mounting flange)

F09/K09 Flange SAE J744 – 127-2 (C)

Hub for splined shaft according to ANSI B92.1a-1976 1 in 15T 16/32DP 1) (SAE J744 – 25-4 (B-B))
Size A1 A2 A3 A4
M16x2; 20 deep 2) A3
O-ring 3) 40 244.7 14 14 19.5
ø27
ø127

A2
181
A4
213 A1
(to mounting flange)

F07/K07 Flange SAE J744 – 127-2 (C)

Hub for splined shaft according to ANSI B92.1a-1976 1 1/4 in 14T 12/24DP 1) (SAE J744 – 32-4 (C))

Sizes 56, 71, 250 Sizes 90, 125, 180 ) Size A1 A2 A3 A4

56 266.4 15 14 17.5
M12x1.75; 18 deep 2)
71 303.6 15 13.5 20
M16x2; 20 deep 2) (size 56) M16x2; 23 deep 2) O-ring 3) 90 309 13 14 20.5
M16x2; 24 deep 2) (size 71, 250)
A3 125 335.9 15 15.5 22.5
ø33,5 5)

180 384.4 14 19 17
250 425.9 16 14 16
114,5

ø127
181

Shown is the 4-bolt and 2-bolt version

Please specify in plain text whether the 4-bolt,
2-bolt horizontal or 2-bolt vertical version is
181
A2 used.
A4
213 A1
114,5
181 (to mounting flange)

1) 30° pressure angle, flat root; side fit, tolerance class 5

2) Thread acc. to DIN 13, please observe the general notes for the max. tightening torques on page 64
3) O-ring included in supply
4) Size 180 only with SAE 2-bolt flange
5) Size 56: ø32.7
52/64 Bosch Rexroth AG A4VG | RE 92003/06.09

Before finalizing your design, please request a

Through Drive Dimensions binding installation drawing. Dimensions in mm.

F73/K73 Flange SAE J744 – 152-2/4 (D)

Hub for splined shaft acc. to DIN 5480 W35x2x30x16x9g

M20x2.5; 20 deep 2) A3 Size A1 A2 A3

O-ring 3) 90 309 12 14
Shown is the 4+2-bolt version
Please specify in plain text whether the 2-bolt,

ø152,4
161,6
200
4-bolt or 4+2-bolt version is used.

161,6 A2
228,6 A1
266,6 (to mounting flange)

F69/K69 Flange SAE J744 – 152-2/4 (D)

Hub for splined shaft according to ANSI B92.1a-1976 1 3/4 in 13T 8/16DP 1) (SAE J744 – 44-4 (D))
M20x2.5; 20 deep 2) A3 Size A1 A2 A3
O-ring 3) 125 343.9 18 14
180 391.9 20.9 18
250 444.9 9 17
ø152,4
161,6

Shown is the 4+2-bolt version

200

Please specify in plain text whether the 2-bolt,

4-bolt or 4+2-bolt version is used.

161,6 A2
228,6 A1
266,6 (to mounting flange)

F72/K72 Flange SAE J744 – 165-4 (E)

Hub for splined shaft according to ANSI B92.1a-1976 1 3/4 in 13T 8/16DP 1) (SAE J744 – 44-4 (D))
M20x2.5; 20 deep 2)
A3 Size A1 A2 A3
180 391.9 20.9 18
O-ring 3) 250 444.9 9 17
224,5

ø165,1
270

A2
224,5
A1
270
(to mounting flange)
1) 30° pressure angle, flat root; side fit, tolerance class 5
2) Thread acc. to DIN 13, please observe the general notes for the max. tightening torques on page 64
3) O-ring included in supply
RE 92003/06.09 | A4VG Bosch Rexroth AG 53/64

Overview of Attachments on A4VG

Through
Through drive – A4VG
drive
Flange Hub for
A4VG A10V(S)O/31 A10V(S)O/53 A4FO A11VO A10VG External Available
splined Code
shaft Size (shaft) Size (shaft) Size (shaft) Size (shaft) Size (shaft) Size (shaft) gear pump for size
82-2 (A) 5/8 in F/K01 – 18 (U) 10 (U) – – – Size F 28...250
Size 4-22 1)

101-2 (B) 7/8 in F/K02 – 28 (S,R) 28 (S,R) 16 (S) – 18 (S) Size N 28...250
22 (S) Size 20-32 1)
45 (U) 45 (U,W) 28 (S) Size G
Size 38-45 1)
1 in F/K04 28 (S) 45 (S,R) 45 (S,R) – 40 (S) 28 (S) – 28...250
60 (U,W) 45 (S)
127-2 (C) 1 in F/K09 40 (U) – – – – – – 40
1 1/4 in F/K07 40 (S), 56 (S) 71 (S,R) 85 (U) – 60 (S) 63 (S) – 56...250
71 (S) 100 (U)
152-2/4 (D) W35 F/K73 90 (Z) – – – – – – 90
1 3/4 in F/K69 90 (S) 140 (S) – – 95 (S) – – 125...250
125 (S) 130 (S)
165-4 (E) 1 3/4 in F/K72 180 (S) – – – 190 (S) – – 180...250
250 (S) 260 (S)
1) Rexroth recommends special gear pump versions. Please contact us.

Combination Pumps A4VG + A4VG

Overall length A

A4VG A4VG (2nd pump) 1)

(1st pump) Size 28 Size 40 Size 56 Size 71 Size 90 Size 125 Size 180 Size 250
Size 28 453.8 – – – – – – –
Size 40 464.1 480.4 – – – – – –
Size 56 485.8 502.1 522.8 – – – – –
Size 71 524.0 539.3 560.0 597.2 – – – –
Size 90 528.4 544.7 565.4 602.6 610.0 – – –
Size 125 554.3 571.6 592.3 629.5 644.9 670.3 – –
Size 180 604.8 620.1 640.8 678.0 692.9 718.3 762.8 –
Size 250 652.3 661.6 682.3 719.5 745.9 771.3 815.8 854.8
1) 2nd pump without through drive and with boost pump, F00
Combination pumps make it possible to have independent circuits without the
need to fit splitter gearboxes.
When ordering combination pumps, the type designations of the
1st and 2nd pumps must be linked by a “+”. A4VG A4VG
Example of order: (1st pump) (2nd pump)
A4VG56EP3D1/32R-NAC02F073SP + A4VG56EP3D1/32R-NSC02F003SP
A tandem pump combined of two equal sizes is permissible without additional sup-
ports where the dynamic acceleration does not exceed max. 10 g (= 98.1 m/s2). A
We recommend the use of 4-bolt mounting flanges from size 71 and larger.
For combination pumps consisting of more than two pumps, the mounting
flange must be rated for the permissible mass torque.
54/64 Bosch Rexroth AG A4VG | RE 92003/06.09

Mechanical Stroke Limiter, M

The mechanical stroke limiter is an additional function allowing
continuous reduction of the maximum displacement of the pump,
regardless of the control unit used.
The stroke of the stroke cylinder and hence the maximum swivel angle
of the pump are limited by means of two adjusting screws.

Dimensions
Size M1 M2 M3 M4
28 110.6 max. 40.1 24 –
40 110.6 max. 38.1 24 –
56 130.5 max. 44 25.5 –
71 135.4 max. 86.3 – 28.5
90 147 max. 95.7 31.5 –
125 162 max. 104.5 – 35.5
180 181.6 max. 138.7 38 –
250 198.9 max. 174.8 39.5 –
Circuit diagram 1)

Mechanical stroke limiter, M

Ports X3 and X4 for Positioning Pressure, T

Dimensions
Size T1 T2 T3 T4 X3, X4
28 92 40.1 – 24 M12x1.5
40 92 38.1 – 24 M12x1.5
56 104.5 44 – 25 M12x1.5
71 113.5 86.3 28 – M12x1.5
90 111.5 95.7 – 30 M12x1.5
125 136 104.5 34 – M12x1.5
180 146.5 138.7 – 35 M12x1.5
250 164.5 174.8 – 38 M16x1.5
Circuit diagram 1)

1) Size 28 and 250 without port Fa1 and FS

RE 92003/06.09 | A4VG Bosch Rexroth AG 55/64

Filtration Types
Standard: Filtration in the suction line of the boost pump, S Variation:
Filtration in the pressure line of the boost pump, ports for
Standard version (preferred)
external boost circuit filter, D
Filter type: __________________________filter without bypass
Filter input: Port Fe
Recommendation: ____________ with contamination indicator
Filter output: Port Fa
Flow resistance at the filter element:
Filter type: Filter with bypass are not recommended.
at ν = 30 mm2/s, n = nmax __________________ Δp ≤ 0.1 bar When applying with bypass please consult us.
at ν = 1000 mm2/s, n = nmax _______________ Δp ≤ 0.3 bar Recommendation: with contamination indicator
Pressure at port S of the boost pump: Note:
For versions with DG control (with pilot-pressure not from boost
at ν = 30 mm2/s ___________________________p ≥ 0.8 bar
circuit), the following filter type should be employed:
at cold start (ν = 1600 mm2/s, n ≤ 1000 rpm) __p ≥ 0.5 bar
Filter with bypass and with contamination indicator
Filter is not included in supply.
Filter arrangement: separately in the pressure line (line filter)
Circuit diagram - standard version S Flow resistance at the filter element:
at ν = 30 mm2/s ___________________________ Δp ≤ 1 bar
for cold start ______________________________ Δp ≤ 3 bar
(valid for entire speed range nmin – nmax)
Filter is not included in supply.

Circuit diagram variation D

Variation: External supply, E

This variation should be used in versions without integral boost
pump (N00 or K...).
Port S is plugged.
Supply comes from port Fa.
Filter arrangement: _____________________________separate
For functional reliability ensure required cleanliness level for the
boost pressure fluid at port Fa (see page 6).

Circuit diagram variation E (external supply)

56/64 Bosch Rexroth AG A4VG | RE 92003/06.09

Filtration Types
Variation: Variation:
Filtration in the pressure line of the boost pump, with cold Filtration in pressure line of boost pump, filter mounted,
start valve and ports for external boost circuit filter, K supplied, F
Version similar to variation D, however additionally with cold start Filter type ___________________________filter without bypass
valve:
Filter grade (absolute) _______________________ 20 microns
– Port plate is equipped with cold start valve and therefore
Filter material ________________________________ glass fiber
protects the pump from damage.
The valve opens at flow resistance Δp ≥ 6 bar. Pressure capacity ______________________________ 100 bar
Port Fe : Filter input (at the cold start valve) Filter arrangement ____________________ connected to pump
Port Fa : Filter output Note:
Filter arrangement _______ separately in the pressure line (line filter) – Port plate is equipped with cold start valve and therefore
protects the pump from damage.
Filter is not included in supply.
The valve opens at flow resistance Δp ≥ 6 bar.
Circuit diagram variation K (with cold start valve) Recommendation: with contamination indicator (variation P, L, M, B)
(differential pressure Δp = 5 bar)

Filter characteristic
Differential pressure/volumetric flow characteristics conforming
to ISO 3968 (valid for new filter element).
100
1000 mm2/s
30 mm2/s
Size 180
Differential pressure Δp in bar

Sizes 40...56 Size 125

10
Sizes 71...90
Size 125

Sizes 40...56 Size 180

Dimensions variation K (with cold start valve)
1

Sizes 71...90

0,1
10 50 100 200
Flow in gpm (L/min)

Circuit diagram variation F (with mountable filter)

Size K1 K2 K3 Fe 1) Tmax. 2)
40 122.5 198.7 0 M18x1.5; 15 deep 140 Nm
56 125.5 215.4 0 M18x1.5; 15 deep 140 Nm
71 145.5 239.0 8 M26x1.5; 16 deep 230 Nm
90 139.5 248.5 24 M26x1.5; 16 deep 230 Nm
125 172.0 267.9 20 M33x2; 18 deep 540 Nm
180 173.0 311.9 3 M33x2; 18 deep 540 Nm
1) DIN 3852
2) Please observe the general notes for the max. tightening
torques on page 64
RE 92003/06.09 | A4VG Bosch Rexroth AG 57/64

Filtration Types
Variation: Variation:
Filtration in pressure line of the boost pump, filter mount- Filtration in the pressure line of the boost pump, filter
ed, supplied, with visual contamination indicator, P mounted, supplied,
with Electric contamination indicator
Version similar to variation F, however additionally with visual
with DEUTSCH connector, B
contamination indicator.
Version similar to variation F, however additionally with Electric
Indication: green/red window
contamination indicator.
Differential pressure (switching pressure) Δp = 5 bar
Indication: Electric
Circuit diagram variation P Differential pressure (switching pressure) Δp = 5 bar
Max. switching power at 24 V DC __________________ 60 W

Circuit diagram variation B

58/64 Bosch Rexroth AG A4VG | RE 92003/06.09

Filtration Types
Dimensions with mountable filter
Variation F Variation P: viewing window

F1 F1
Detail A, Detail A,
F2 F2
rotated 90° rotated 90°

F3

F3
7

F8
A A
F7
F6

F6
F5 F5
F4 F4

Variation B: electr. signal with DEUTSCH connector

F1 Detail A,
F2 rotated 90°
F3

A
F6

F5
F4

Size F1 F2 F3 F4 F5 F6 F7 F8
40 201.7 47.7 160 175 135 0 42 78.5
56 218.4 64.4 163 178 138 0 42 78.5
71 239 46.5 185 203.5 155 16 29 65.5
90 248.5 56 179 197.5 149 0 45 81.5
125 235.9 59.4 201 219.5 171 0 53 89.5
180 279.9 40.3 202 220.4 171.9 17 36 72.5
RE 92003/06.09 | A4VG Bosch Rexroth AG 59/64

Swivel Angle Indicator

Electric swivel angle sensor, R Dimensions

For swivel angle indicator, the pump swivel position is meas-

ured by an electric swivel angle sensor. The sensor has a ro-
bust, sealed case and a built-in electronic specially developed
for automotive applications.
As an output parameter, the hall effect swivel angle sensor
delivers a voltage proportional to the swivel angle (see table of
output voltages).

Technical Data
Supply voltage Ub 10...30 V DC
0,5 V 2,5 V 4,5 V Detail V
Output voltage Ua
(Vg max a) (Vg 0) (Vg max b) not drawn to scale
Reserve-connect protection Short circuit-resistant
EMC resistance Details on request
Operating temperature range -40 °C...+125 °C Ground Ub Output
Vibration resistance voltage Ua
sinusoidal vibration 10g / 5...2000 Hz
EN 60068-2-6 Size A B C
Shock resistance: 28 56.6 94 119
continuous shock IEC 68-2-29 25g 40 58.6 96 119
Salt spray resistance 56 60.5 97.5 128.5
(DIN 50 021-SS) 96h
71 71.6 108.6 137.5
Type of protection DIN/EN 60529 IP67 and IP69K
90 70.7 107.7 145.5
Case material Plastic
125 78 115 152.5
Output voltage 180 100.7 137.7 153.5
250 105.1 142.1 180.5
Direction of Direction of Output voltage
rotation through put flow Mating connector
at Vg0 at Vg max
AMP Superseal 1.5; 3-pin,
clockwise A to B 2.5 V 4.5 V
Rexroth mat. no. R902602132
B to A 2.5 V 0.5 V
comprising: AMP no.
counter- B to A 2.5 V 4.5 V
clockwise – 1 socket case, 3-pins ________________________ 282087-1
A to B 2.5 V 0.5 V
– 3 single wire seal, yellow ______________________281934-2
Circuit diagram
– 3 socket contact 1.8 - 3.3 mm ________________ 283025-1
Electric swivel angle sensor
The mating connector is not included in supply.
This can be supplied by Rexroth on request.
60/64 Bosch Rexroth AG A4VG | RE 92003/06.09

Connector for Solenoids (Only for EP, EZ, DA)

DEUTSCH DT04-2P-EP04, 2-pin
Molded, without bi-directional suppressor diode (standard) _ P
Molded, with bi-directional suppressor diode
(only for switching solenoids on control unit EZ1/2, DA) ____Q
Type of protection according to DIN/EN 60529: IP67 and
IP69K
The protection circuit with a bi-directional suppressor diode is
necessary for limiting overvoltages. Overvoltages are generat-
ed by disconnecting the current using switches, relay contacts
or by unplugging an energized mating connector.

Circuit symbol
without bi-directional with bi-directional
suppressor diode suppressor diode

Mating connector
DEUTSCH DT06-2S-EP04
Rexroth Mat. No. R902601804
consisting of: DT designation
– 1 case ________________________________DT06-2S-EP04
– 1 wedge _______________________________________W2S
– 2 sockets ____________________________ 0462-201-16141
The mating connector is not included in supply.
This can be supplied by Rexroth on request.
36
Ø37

50
68,5

Note for round solenoids:

The position of the connector can be changed by turning the
solenoid body.
Proceed as follows:
1. Loosen the fixing nut (1)
2. Turn the solenoid body (2) to the desired position
3. Tighten the fixing nut
Tightening torque of the fixing nut: 5+1 Nm
(width across flats WAF26, 12-sided DIN 3124)
RE 92003/06.09 | A4VG Bosch Rexroth AG 61/64

Rotary Inch Valve

The rotary inch valve permits the control pressure to be re- Unit dimensions
duced independent from the drive speed through the mechani-
cal operation of the actuating lever. Maximum rotation angle
90°. The lever may be fixed in any position.
The valve is mounted separately from the pump and connected
with a pump by the hydraulic control line at port PS (max. line
length approximately 2 meters).
The rotary inch valve must be ordered separately.

Size Material no. Direction of actuation

of position lever
28, 40, 56, 71, 90 R902048734 clockwise
R902048735 counterclockwise
125 R902048740 clockwise
R902048741 counterclockwise Tightening torque 25 Nm
180, 250 R902048744 clockwise
R902048745 counterclockwise Clockwise
Attention:
The rotary inch valve can be used independently from the
control unit.

Circuit diagram:
Counterclockwise
hydraulic control, speed related, DA
with separate rotary inching valve Max. rotation angle 90°

Rotary inch valve (see material no.)

Ports
X pressure port
DIN 3852 M14x1.5; 12 deep 80 Nm 1)
T drain tank
DIN 3852 M14x1.5; 12 deep 80 Nm 1)
1) Please observe the general notes for the max. tightening
torques on page 64
62/64 Bosch Rexroth AG A4VG | RE 92003/06.09

Installation Situation for Coupling Assembly

To ensure that rotating components (coupling hub) and fixed components (case, retaining ring) do not come into contact with
each other, the installation conditions described here must be observed. This depends on the size and the splined shaft.

Size 28 and 40 (with free turning):

– SAE and DIN splined shaft
Please observe diameter of the free turning (size 28: ø72, size 40: ø80).

Size 56 to 250 (without free turning):

– SAE splined shaft (shaft S or T)
The outer diameter of the coupling hub must be smaller than the inner diameter of the retaining ring d2 at the zone of the drive
shaft collar (measure x2 – x3).
– DIN splined shaft (shaft Z or AT)
The outer diameter of the coupling hub must be smaller than the case diameter d3 at the zone of the drive shaft collar (measure x2 – x4).

SAE splined shaft (spline acc. to ANSI B92.1a-1976) DIN splined shaft (spline acc. to DIN 5480)
x2 (only sizes 28 and 40) x2 (only sizes 28 and 40)
7 7
x1 x1
Coupling hub Coupling hub
ø72 (size 28)
ø80 (size 40)
ø72 (size 28)
ø80 (size 40)

d1

d1
d4

d3
d2

d4

d3
d2

x3 x4

Size ød1 ød2 min ød3 ød4 x1 x2 x3 x4

+0.2 +0.9 +0.9
28 35 43.4 55 ±0.1 101.6 3.3 9.5 –0.5 8 –0.6 10 –0.6
+0.2 +0.9 +0.9
40 40 51.4 63 ±0.1 127 4.3 12.7 –0.5 8 –0.6 10 –0.6
+0.2 +0.9 +0.9
56 40 54.4 68 ±0.1 127 7.0 12.7 –0.5 8 –0.6 10 –0.6
+0.2 +0.9 +0.9
71 45 66.5 81 ±0.1 127 7.0 12.7 –0.5 8 –0.6 10 –0.6
+0.2 +0.9 +0.9
90 50 66.5 81 ±0.1 152.4 6.8 12.7 –0.5 8 –0.6 10 –0.6
+0.2 +0.9 +0.9
125 55 76.3 91 ±0.1 152.4 7.0 12.7 –0.5 8 –0.6 10 –0.6
+0.2 +0.9 +0.9
180 60 88 107 ±0.1 165.1 7.4 15.9 –0.5 8 –0.6 10 –0.6
+0.2 +0.9 +0.9
250 75 104.6 121 165.1 6.3 15.9 –0.5 8 –0.6 10 –0.6
RE 92003/06.09 | A4VG Bosch Rexroth AG 63/64

Installation Notes
General
During commissioning and operation, the axial piston unit must be filled with hydraulic fluid and air bled. This is also to be ob-
served following a relatively long standstill as the system may empty via the hydraulic lines.
The pump case drain connection (i.e.-T1/T2) must be directed to the tank via the highest case drain port. The minimum suction
pressure at port S must not fall below 0.8 bar abs. (cold start 0.5 bar absolute).
In all operating states, the suction line and case drain line must flow into the tank below the minimum fluid level.

Installation position
See examples below. Additional installation positions are available upon request.
Note:
With size 71...250, installation position “shaft at top” must be specified at time of order (pump is supplied with additional vent port R1
in flange area).

Below-tank installation (standard) Above-tank installation

Pump below the minimum fluid level of the tank. Pump above the min. fluid level of the tank
Recommended installation positions: 1 and 2. Observe the maximum permissible suction height hmax = 800 mm.
Recommendation for installation position 8 (shaft upwards):
A check valve in the case drain line (opening pressure 0.5 bar)
can prevent draining of the case interior.

L2 L2
L2
1 2 5 6
R
L3
S T2
R
S T2 L3
T1
T1
T1
T1
T2 S
T2
S

3 L2 4 L2 L3
7 8
S
R1
S R1 R
L2 L3
R T2
T2 T1 T1
T1 T2
0,5 bar

T1 T2
S
S

Installation Installation
Air bleeding Filling Air bleeding Filling
position position
1 R S + T1 (L2) 5 R T1 + (L3)

2 L2 S + T2 (L2) 6 L2 S (L3) + T2 (L2)

3 L2 S + T2 (L2) 7 L2 + L3 S (L3) + T2 (L2)

4 R + L2 (size 28 - 56) S + T2 (L2) 8 R + L3 (size 28 - 56) S (L3) + T2

R1+L2 (size 71-250) R1+L3 (size 71-250)
64/64 Bosch Rexroth AG A4VG | RE 92003/06.09

General Notes
– The A4VG pump is designed to be used in closed circuits.
– Project planning, assembly and commissioning of the pump require the involvement of qualified personnel.
– The service line ports and function ports are only designed to accommodate hydraulic lines.
– During and shortly after operation, there is a risk of burns on the pump and especially on the solenoids. Take suitable safety
precautions, e.g. wear protective clothing
– There may be shifts in the characteristic depending on the operating state of the pump (operating pressure, fluid temperature).
– Tightening torques:
- The tightening torques specified in this data sheet are maximum values and must not be exceeded
(maximum values for screw thread).
Manufacturer´s instruction for the max. permissible tightening torques of the used fittings must be observed!
- For DIN 13 fixing screws, we recommend checking the tightening torque individually according to VDI 2230 Edition 2003.
– The data and information contained herein must be adhered to.

Bosch Rexroth AG © This document, as well as the data, specifications and other information set
Hydraulics forth in it, are the exclusive property of Bosch Rexroth AG. It may not be repro-
Axial Piston Units duced or given to third parties without its consent.
Glockeraustraße 2 The data specified above only serve to describe the product. No statements
89275 Elchingen, Germany concerning a certain condition or suitability for a certain application can be de-
Telephone +49 (0) 73 08 82-0 rived from our information. The information given does not release the user from
the obligation of own judgment and verification. It must be remembered that our
Fax +49 (0) 73 08 72 74
products are subject to a natural process of wear and aging.
info.brm-ak@boschrexroth.de
Subject to change.
www.boschrexroth.com/axial-piston-pumps