RE 92705/06.2016, Bosch Rexroth AG
Features
▶ Variable pump with axial piston rotary group of swash-
plate design for hydrostatic drives in open circuit
▶ Flow is proportional to the drive speed and displacement.
▶ The flow can be infinitely varied by adjusting the swash-
plate angle.
▶ Hydrostatic unloading of the cradle bearings
▶ Port for measurement sensor on high pressure port for
size 180 or port plate 22 and 32
▶ Low noise level
▶ Increased functional reliability
▶ High efficiency
▶ Favorable power/weight ratio
▶ Universal through drive for Only size 180
▶ Optional pulsation damping
▶ Optimized medium pressure pump
for powerful machines
▶ Sizes 45 to 180
▶ Nominal pressure 280 bar
▶ Maximum pressure 350 bar
▶ Open circuit
Axial piston variable pump
A10VO Series 32
RE 92705
Edition: 06.2016
Replaces: 01.2012
Contents
Ordering code 2
Hydraulic fluids 4
Working pressure range 6
Technical data 7
DR – Pressure controller 9
DRG – Pressure controller, remotely controlled 10
DRF/DRS/DRSC – Pressure and flow control 11
LA... – Pressure, flow and power controller 13
LA... – Variations 14
ED – Electro-hydraulic pressure control 15
ER – Electro-hydraulic pressure control 16
Dimensions size 45 17
Dimensions size 71 22
Dimensions size 100 27
Dimensions size 140 31
Dimensions size 180 36
Dimensions, through drives 40
Overview of mounting options 48
Combination pumps A10VO + A10VO 49
Connector for solenoids 50
Installation instructions 51
Project planning notes 54
Safety instructions 54
Bosch Rexroth AG, RE 92705/06.2016
2 A10VO Series 32 | Axial piston variable pump
Ordering code
Ordering code
01 02 03 04 05 06 07 08 09 10 11 12
A10V O / 32 – V
Axial piston unit
01 Swashplate design, variable, nominal pressure 280 bar, maximum pressure 350 bar
A10V
Operating mode
02 Pump, open circuit
O
Sizes (NG)
03 Geometric displacement, see “Technical data” on page 7
045 071 100 140 180
Control devices
04 Pressure controller Hydraulic
● ● ● ● ● DR
with flow controller Hydraulic X-T open
● ● ● ● ● DRF
X-T plugged with flushing function
● ● ● ● ● DRS
X-T plugged without flushing function
● ● ● ● ● DRSC
Pressure cut-off Hydraulic remotely controlled
● ● ● ● ● DRG
electrical negative control U = 12 V
● ● ● ● ● ED71
U = 24 V
● ● ● ● ● ED72
electrical positive control U = 12 V
● ● ● ● ● ER71
1)
U = 24 V
● ● ● ● ● ER72
1)
Differential pressure
control
electrical negative control see data sheet 92709
● ● ● ● ○ EF.
Power controller with
Pressure cut-off Hydraulic Beginning of control to 50 bar
● ● ● ● ● LA5D
from 51 to 90bar ● ● ● ● ● LA6D
91 to 160bar
● ● ● ● ● LA7D
161 to 240bar
● ● ● ● ● LA8D
above 240 bar
● ● ● ● ● LA9D
Pressure cut-off and
flow control
Hydraulic Beginning of control see LA.D
● ● ● ● ● LA.DS
Remote-controlled
pressure cut-off
Hydraulic Beginning of control see LA.D
● ● ● ● ● LA.DG
Separate flow control Hydraulic Beginning of control see LA.D
● ● ● ● ● LA.S
Series
05 Series 3, index 2
32
Directions of rotation
06 Viewed on drive shaft clockwise
R
counter-clockwise
L
Seal
07 FKM (fluoroelastomer)
V
Drive shaft
08 Splined shaft standard shaft
● ● ● ● ● S
ANSI B92.1a similar to shaft “S” however for higher input torque
● ●
– – –
R
reduced diameter, limited suitability for through drive
(see table of values, page 8)
● ● ● ●
–
U
same as shaft “U”, but for higher torque, limited suitability
forthrough drive (see table of values, page 8)
○ ○ ● ● ● W
1) Comply with project planning notes on page 16
RE 92705/06.2016, Bosch Rexroth AG
Axial piston variable pump | A10VO Series 32
Ordering code
3
Mounting flange 045 071 100 140 180
09 ISO 3019-1 (SAE) SAE C; 2-hole
● ● ● ●
–
C
SAE C; 4-hole
● ● ● ● ● D
SAE D; 4-hole
–
●
– – –
U
Working port
10 SAE flange port
(Port plates and through
drive assignment,
seeposition 11)
rear, metric fastening thread (not for through drive)
● ● ● ● ● 11
at top, at bottom, on opposite side, metric fastening thread
● ● ● ●
–
12
at top, at bottom, on opposite side, metric fastening thread
with universal through drive U..; without pulsation damping
○ ○ ○ ○ ● 22
1)
at top, at bottom, on opposite side, metric fastening thread
with universal through drive U..; with pulsation damping
○ ○ ○ ○ ● 32
1)
Through drive (for mounting options, see page 48)
11 Flange ISO 3019-1 Attach-
ment
4)
Hub for splined shaft
2)
Diameter Diameter
045 071 100 140 180
without through drive (Only for port plates 11 and 12) ● ● ● ● ●
N00
82-2 (A)
5/8 in 9T 16/32DP ● ● ● ●
–
K01
3/4 in 11T 16/32DP ● ● ● ●
–
K52
101-2 (B)
7/8 in 13T 16/32DP ● ● ● ●
–
K68
1 in 15T 16/32DP ● ● ● ●
–
K04
127-2 (C)
1 1/4 in 14T 12/24DP
–
● ● ●
–
K07
1 1/2 in 17T12/24DP
–
– ● ●
–
K24
127-4 (C)
1 1/4 in 14T 12/24DP
–
○ ● ●
–
K15
152-4 (D)
1 3/4 in 13T 8/16DP
– – –
●
–
K17
without through drive (Only possible with port plates 22 and 32)
3)
○ ○ ○ ○ ●
U00
82-2 (A)
5/8 in 9T 16/32DP ○ ○ ○ ○ ●
U01
3/4 in 11T 16/32DP ○ ○ ○ ○ ●
U52
101-2 (B)
7/8 in 13T 16/32DP ○ ○ ○ ○ ●
U68
1 in 15T 16/32DP ○ ○ ○ ○ ●
U04
127-2 (C)
1 1/4 in 14T 12/24DP
–
○ ○ ○ ●
U07
1 1/2 in 17T 12/24DP
– –
○ ○ ●
U24
127-4 (C)
1 in 15T 16/32DP ○ ○ ○ ○ ○
UE2
1 1/4 in 14T 12/24DP
– –
○ ○ ●
U15
152-4 (D)
1 3/4 in 13T 8/16DP
– – –
○ ●
U17
Connectors for solenoids
5)
12 Without connector (without solenoid, with hydraulic control only, without code)
DEUTSCH molded connector, 2-pin – without suppressor diode
P
●
= Available
○
= On request – = Not available
Notes
▶ Note the project planning notes on page 54!
▶ In addition to the type code, please specify the rele-
vant technical data when placing your order.
01 02 03 04 05 06 07 08 09 10 11 12
A10V O / 32 – V
1) Only with mounting flange (ordering code position 09) D or U
2) According to ANSI B92.1a (splined shafts according to SAE J744)
3) With through-drive shaft, without hub, without intermediate flange,
closed on a functionally reliable basis with cover. For mounting kits,
see data sheet 95581.
4) Mounting through bores pattern viewed from through drive with
control at top.
5) Connectors for other electric components may deviate.
Bosch Rexroth AG, RE 92705/06.2016
4 A10VO Series 32 | Axial piston variable pump
Hydraulic fluids
Hydraulic fluids
The A10VO variable pump is designed for operation with
HLP mineral oil according to DIN 51524.
Application instructions and requirements for hydraulic
fluids should be taken from the following data sheets
before the start of project planning:
▶ 90220: Hydraulic fluids based on mineral oils and
related hydrocarbons
▶ 90221: Environmentally acceptable hydraulic fluids
▶ 90222: HFD hydraulic fluids (for permissible technical
data, see data sheet 90225.)
Notes on selection of hydraulic fluid
The hydraulic fluid should be selected such that the operat-
ing viscosity in the operating temperature range is within
the optimum range (ν
opt
see selection diagram).
Notice
At no point of the component may the temperature be
higher than 115°C. The temperature difference specified in
the table is to be taken into account when determining the
viscosity in the bearing.
If the above conditions cannot be maintained due to
extreme operating parameters, please contact the responsi-
ble member of staff at Bosch Rexroth.
Viscosity and temperature of hydraulic fluids
Viscosity Temperature Comment
Cold start
ν
max
≤1600 mm
2
/s θ
St
≥-40°C t≤1 min, without load (p≤30 bar), n≤1000rpm
Permissible temperature difference
ΔT≤25K
between axial piston unit and hydraulic fluid
Warm-up phase
ν<1600 to 400 mm
2
/s θ=-40°C to -25°C
Note the detailed information on operation with low tempera-
tures, see data sheet 90300-03-B.
Continuous operation
ν=400 to 10 mm
2
/s
this corresponds, for VG46 for example, to a temperature
range of +5°C to +85°C (see selection diagram)
θ=-25°C to +110°C
measured at port L, L
1
Observe the permissible temperature range of the shaft seal
(ΔT=approx.5K between the bearing/shaft seal and port L, L
1
)
ν
opt
=36 to 16 mm
2
/s
Range of optimum operating viscosity and efficiency
Short-term operation
ν
min
≥7 mm
2
/s t<1 min, p<0.3•p
nom
▼ Selection diagram
-40 -25 -10 10 30 50 90 11570
0
7
10
40
60
20
100
200
400
600
1000
1600
VG 22
VG 32
VG 46
VG 68
VG 100
16
36
Optimum operating viscosity range v
opt
Optimum efficiency
Maximum permissible viscosity for cold start
Minimum permissible viscosity for short-term operation
Temperature θ [°C]
Viscosity v [mm
2
/s]
Continuous operation
Warm-up phase
Minimum permissible temperature for cold start
RE 92705/06.2016, Bosch Rexroth AG
Axial piston variable pump | A10VO Series 32
Hydraulic fluids
5
Filtration of the hydraulic fluid
Finer filtration improves the cleanliness level of the hydraulic
fluid, which increases the service life of the axial piston unit.
A cleanliness level of at least 20/18/15 is to be maintained
according to ISO4406.
At very high hydraulic fluid temperatures (90°C to maximum
115°C), cleanliness level 19/17/14 according to at least
ISO4406 is necessary.
Please contact us if the above classes cannot be observed.
Bosch Rexroth AG, RE 92705/06.2016
6 A10VO Series 32 | Axial piston variable pump
Working pressure range
Working pressure range
Pressure at working port B Definition
Nominal pressure p
nom
280 bar The nominal pressure corresponds to the maximum design pressure.
Maximum pressure p
max
350 bar The maximum pressure corresponds to the maximum working pressure within
the single operating period. The sum of the single operating periods must not
exceed the total operating period.
Single operating period 2ms
Total operating period 300 h
Minimum pressure (high-pressure side) 10 bar
1)
Minimum pressure on the high-pressure side (B) which is required in order to
prevent damage to the axial piston unit.
Rate of pressure change R
Amax
16000bar/s Maximum permissible pressure build-up and reduction speed during a pressure
change across the entire pressure range.
Pressure at suction port S (inlet)
Minimum pressure p
Smin
NG45 to 100
at 1800rpm
0.8bar absolute Minimum pressure at suction port S (inlet) that is required in order to avoid
damage to the axial piston unit. The minimum pressure depends on the rota-
tional speed and displacement of the axial piston unit.
NG140 to 180
at 1800rpm
1.0bar absolute
Maximum pressure p
Smax
10bar
2)
Case pressure at port L
1
, L
2
Maximum pressure p
Lmax
2 bar
2)
absolute
Maximum 0.5bar higher than inlet pressure at port S, but not higher than p
Lmax
.
A case drain line to the reservoir is required.
▼ Rate of pressure change R
Amax
Time t
Pressure p
▼ Pressure definition
Pressure p
t
1
t
2
t
n
Single operating period
Minimum pressure (high-pressure side)
Maximum pressure p
max
Nominal pressure p
nom
Time t
Total operating period = t
1
+ t
2
+ ... + t
n
Notice
Working pressure range valid when using hydraulic fluids
based on mineral oils. Please contact us for values for
other hydraulic fluids.
1) Lower pressure is time-dependent, please contact us
2) Other values on request
RE 92705/06.2016, Bosch Rexroth AG
Axial piston variable pump | A10VO Series 32
Technical data
7
Technical data
Size NG 045 071 100 140 180
Displacement, geometric, per revolution
V
g max
cm
3
45 71.1 100 140 180
Maximum rotational
speed
1)2)
at V
g max
n
nom
rpm 3000 2550 2300 2200 1800
Flow
at n
nom
and V
g max
q
v
l/min 135 181 230 308 324
Power
at n
nom
, V
g max
and Δp = 280 bar P
kW 63 85 107 144 151
Torque
at V
g max
and Δp = 280bar T
Nm 200 317 446 624 802
at V
g max
and Δp = 100bar T
Nm 72 113 159 223 286
Rotary stiffness of
drive shaft
S
c
Nm/rad 37500 71884 121142 169537 171107
R
c
Nm/rad 41025 76545 – – –
U
c
Nm/rad 30077 52779 91093 on
request
–
W
c
Nm/rad 34463 57460 101847 165594 –
Moment of inertia for rotary group
J
TW
kgm
2
0.0035 0.0087 0.0167 0.0242 0,033
Maximum angular acceleration
3)
α
rad/s² 4000 2900 2400 2000 2000
Case volume
V
L 1.0 1.6 2.2 3.0 2.7
Weight (11N00 and 12N00 without through drive) approx.
m
kg 25.8 40.4 56.4 70.5 75.2
Weight (12Kxx) approx.
m
kg 27.4 43.3 62.6 79.5 –
Weight (22Uxx/32Uxx) approx.
m
kg 32.6 51.8 76 90.2 89.4
Determining the operating characteristics
Flow
q
v
=
V
g
×n×η
v
[l/min]
1000
Torque
T
=
V
g
×Δp
[Nm]
20×π×η
hm
Power
P
=
2π×T×n
=
q
v
×Δp
[kW]
60000
600×η
t
Key
V
g
Displacement per revolution [cm
3
]
Δp
Differential pressure [bar]
n
Rotational speed [rpm]
η
v
Volumetric efficiency
η
hm
Hydraulic-mechanical efficiency
η
t
Total efficiency (η
t
=η
v
×η
hm
)
Notice
▶ Theoretical values, without efficiency and tolerances;
values rounded
▶ Operation above the maximum values or below the
minimum values may result in a loss of function, a
reduced service life or in the destruction of the axial
piston unit. Bosch Rexroth recommend testing the load
by means of experiment or calculation/simulation and
comparison with the permissible values.
1) The values are applicable:
‒ to the optimum viscosity range from ν
opt
= 36 to 16 mm
2
/s
‒ to hydraulic fluid based on mineral oils
2) The values apply at absolute pressure p
abs
= 1.0bar at suction port S.
3) The data are valid for values between the minimum required and
maximum permissible rotational speed. Valid for external excitation
(e.g. diesel engine 2 to 8 times rotary frequency, cardan shaft twice
the rotary frequency). The limit value is only valid for a single pump.
The load capacity of the connecting parts must be considered.
Bosch Rexroth AG, RE 92705/06.2016
8 A10VO Series 32 | Axial piston variable pump
Working pressure range
Permissible radial and axial forces on the drive shaft
Size NG 45 71 100 140 180
Maximum radial force at a/2
F
q max
N 1500 1900 2300 2800 2300
Maximum axial force
F
ax
+
–
± F
ax max
N 1500 2400 4000 4800 800
Notice
▶ For drives with radial loading (pinion, V-belt), please
contact us!
▶ The values given are maximum values and do not apply
to continuous operation.
Permissible input and through-drive torques
Size 45 71 100 140 180
Torque at V
g max
and Δp = 280 bar
1)
T
max
Nm 200 316 446 624 802
Input torque at drive shaft, maximum
2)
S
T
E max
Nm 319 626 1104 1620 1834
Ø in 1 1 1/4 1 1/2 1 3/4 1 3/4
R
T
E max
Nm 400 644 – – –
Ø in 1 1 1/4 – – –
U
T
E max
Nm 188 300 595 on
request
–
Ø in 7 /8 1 1 1/4 1 1/2 –
W
T
E max
Nm – 394 636 1220 1488
Ø in – 1 1 1/4 1 1/2 1 1/2
Maximum through-drive torque
S
T
Dmax
Nm 319 492 778 1266 1266
R
T
Dmax
Nm 365 548 – – –
U
T
Dmax
Nm 188 – 595 on
request
–
W
T
Dmax
Nm – – 636 1220 1266
▼ Distribution of torques
T
E
T
D
T
1
T
2
T
3
1st pump 2nd
pump
Torque at 1st pump
T
1
Torque at 2nd pump
T
2
Torque at 3rd pump
T
3
Input torque
T
E
=
T
1
+ T
2
+ T
3
T
E
<
T
E max
Through-drive torque
T
D
=
T
2
+ T
3
T
D
<
T
Dmax
F
q
a
a/2
a/2
1) Efficiency not considered
2) For drive shafts with no radial force
RE 92705/06.2016, Bosch Rexroth AG
Axial piston variable pump | A10VO Series 32
DR – Pressure controller
9
DR – Pressure controller
The pressure controller limits the maximum pressure at the
pump outlet within the control range of the variable pump.
The variable pump only supplies as much hydraulic fluid as
is required by the consumers. If the working pressure
exceeds the pressure command value at the pressure valve,
the pump will regulate to a smaller displacement to reduce
the control differential.
▶ Basic position in depressurized state:V
g max
.
▶ Setting range
1)
for pressure control 20 to 280bar.
Standard is 280bar.
▼ Characteristic curve DR
280
q
v min
q
v max
20
Working pressure p [bar]
Flow q
V
Hysteresis/pressure rise Δp
max
Characteristic curve valid at n
1
= 1500 rpm and θ
fluid
= 50°C.
▼ Circuit diagram DR
SL
1
B
M
B
2)
L
Controller data
Size 45 71 100 140 180
Pressure rise,
maximum
Δp [bar]
6 8 10 12 14
Hysteresis and
repeatability
Δp [bar]
maximum 3
Control fluid
consumption
[l/min] maximum approx. 3
1) In order to prevent damage to the pump and the system, the per-
missible setting range must not be exceeded.
The range of possible settings at the valve is higher.
2) Only with port plates 22 and 32
Bosch Rexroth AG, RE 92705/06.2016
10 A10VO Series 32 | Axial piston variable pump
DRG – Pressure controller, remotely controlled
DRG – Pressure controller, remotely controlled
For the remote-controlled pressure controller, the LS pres-
sure limitation is performed using a separately arranged
pressure relief valve. Therefore any pressure control value
under the pressure set on the pressure controller can be
regulated. Pressure controller DR see page 9.
A pressure relief valve is externally piped to port X for
remote control. This relief valve is not included in the scope
of delivery of the DRG control.
When there is differential pressure Δp at the control valve
and with the standard setting on the remote-controlled
pressure cut-off of 20bar, the amount of control fluid at the
port is X approx. 1.5l/min. If a different setting (range 10
to 22bar) is required, please state in plain text.
As a separate pressure relief valve (1) we recommend:
▶ A directly controlled, hydraulic or electric proportional
one, suitable for the control fluid mentioned above.
The max. length of piping should not exceed 2m.
▶ Basic position in depressurized state: V
g max
.
▶ Setting range
1)
for pressure control 20 to 280bar (3).
Standard is 280bar.
▶ Setting range for differential pressure 10 - 22bar(2)
Standard is 20bar.
Unloading port X to the reservoir results in a zero stroke
(standby) pressure which is approx. 1 to 2bar higher than
the defined differential pressure ∆p, however system influ-
ences are not taken into account.
▼ Characteristic curve DRG
280
q
v min
q
v max
Standby
2)
Working pressure p
B
[bar]
Flow q
V
Hysteresis/pressure rise Δp
max
Characteristic curve valid for n
1
= 1500rpm and
θ
fluid
= 50°C.
▼ Circuit diagram DRG
SL
1
B
M
B
3)
L
X
1
2
3
1 The separate pressure relief valve and the line are not
included in the scope of delivery.
2 Remote-controlled pressure cut-off (G).
3 Pressure controller (DR)
Controller data
Size 45 71 100 140 180
Pressure rise,
maximum
Δp [bar]
6 8 10 12 14
Hysteresis and
repeatability
Δp [bar]
maximum 3
Control fluid
consumption
[l/min] maximum approx. 4.5
1) In order to prevent damage to the pump and the system,
the permissible setting range must not be exceeded.
The range of possible settings at the valve is higher.
2) Zero stroke from pressure setting Δp on controller (2)
3) Only with port plates 22 and 32
RE 92705/06.2016, Bosch Rexroth AG
Axial piston variable pump | A10VO Series 32
DRF/DRS/DRSC – Pressure and flow control
11
DRF/DRS/DRSC – Pressure and flow control
In addition to the pressure controller function (seepage9),
an adjustable orifice (e.g. directional valve) is used to
adjust the differential pressure upstream and downstream
of the orifice. This is used to control the pump flow. The
pump flow is equal to the actual hydraulic fluid quantity
required by the consumer. With all controller combinations,
the V
g
reduction has priority.
▶ Basic position in depressurized state:V
g max
.
▶ Setting range
1)
to 280bar.
Standard is 280bar
▶ DR pressure controller data see page 9
▼ Characteristic curve DRF/DRS/DRSC
280
q
v min
q
v max
Stand
by
2)
0
Working pressure p [bar]
Flow q
V
Hysteresis/pressure rise Δp
max
▼ Characteristic curve at variable rotational speed
q
V max
q
V min
n
0
n
max
Rotational speed n
Flow q
V
Hysteresis/Pressure increase Δq
V
max
Characteristic curves valid at n
1
= 1500 rpm and θ
fluid
= 50°C.
▼ Circuit diagram DRF
S
L
1
B
M
B
3)
L
X
1
2
3
Plugged at DRS/DRSC valve
1 The metering orifice (control block) and the line are not
included in the scope of delivery.
2 Pressure and flow controller (FR).
3 Pressure controller (DR)
Note
The DRS and DRSC valve versions have no pilot line
between X and the reservoir.
Unloading the LS-pilot line must be possible in the valve
system.
Because of the flushing function sufficient unloading of
the flow controller in DRS control valve X-line must also
be provided.
If this pilot line of the X line does not have to be guaran-
teed, the DRSC control valve must be used.
For further information see page 12
1) In order to prevent damage to the pump and the system,
the permissible setting range must not be exceeded.
The range of possible settings at the valve is higher.
2) Zero stroke from differential pressure setting Δp on controller (2)
3) Only with port plates 22 and 32
Bosch Rexroth AG, RE 92705/06.2016
12 A10VO Series 32 | Axial piston variable pump
DRF/DRS/DRSC – Pressure and flow control
Differential pressure ∆p
▶ Standard setting: 14bar
If another setting is required, please state in clear text.
▶ Setting range: 14 to 22bar
Unloading port X to the reservoir results in a zero stroke
(standby) pressure which is approx. 1 to 2bar higher than
the defined differential pressure ∆p, however system influ-
ences are not taken into account.
Controller data
DR pressure controller data see page 9.
Maximum flow deviation measured at
drive speed n = 1500rpm.
NG 45 71 100 140 180
Flow deviation
Δq
V max
[l/min]
1.8 2.8 4.0 6.0 8.0
Hysteresis and
repeatability
Δp [bar]
maximum 3
Control fluid
consumption
l/min maximum approx. 3 to 4.5 (DRF)
maximum approx. 3 (DRS/DRSC)
RE 92705/06.2016, Bosch Rexroth AG
Axial piston variable pump | A10VO Series 32
LA... – Pressure, flow and power controller
13
LA... – Pressure, flow and power controller
Pressure controller equipped as DR(G), seepage9(10).
Equipment of the flow controller like DRS, see page 11.
In order to achieve a constant drive torque with varying
working pressures, the swivel angle and with it the output
flow from the axial piston pump is varied so that the prod-
uct of flow and pressure remains constant. Flow controller
is possible below the power control curve.
When ordering please state the power characteristics to be
set at the factory in plain text, e.g. 20 kW at 1500rpm.
Controller data
▶ For technical data of pressure controller DR see page 9.
▶ For technical data of flow controller FR see page 11.
▶ Control fluid consumption max. approx. 5.5 l/min
Beginning of
control
Torque T [Nm] for size
Ordering code45 71 100 140 180
up to 50 bar up to 42.0 up to 67.0 up to 94.0 up to 132.0 up to 167.0 LA5
51 to 90bar 42.1 × 76.0 67.1 × 121.0 94.1 × 169.0 132.1 × 237.0 167.1 × 302.0 LA6
91 to 160bar 76.1 × 134.0 121.1 × 213.0 169.1 × 299.0 237.1 × 418.0 302.1 × 540.0 LA7
161 to 240bar 134.1 × 202.0 213.1 × 319.0 299.1 × 449.0 418.1 × 629.0 540.1 × 810.0 LA8
over 240 bar over 202.1 over 319.1 over 449.1 over 629.1 over 810.1 LA9
Conversion of the torque values in power [kW]
P=
T
[kW] (at 1500 rpm) or P=
2π x T x n
[kW] (For rotational speeds, see table on page 7)
6.4 60000
▼ Characteristic curve LA
0 100
0
50
100
150
200
250
280
300
0 100
∆q
V
LA9
LA8
LA7
LA5
LA6
LA9
LA8
LA7
LA5
LA6
Flow q
V
[%]
Working pressure p
B
[bar]Torque T
Flow q
V
[%]
▼ Circuit diagram LA.D with pressure cut-off
(for further combination options with LA.. see page 14)
SL
1
B
M
B
1)
L
X
Bosch Rexroth AG, RE 92705/06.2016
14 A10VO Series 32 | Axial piston variable pump
LA... – Variations
LA... – Variations
▼ Circuit diagram LA.DG with pressure cut-off, remotely controlled
SL
1
B
M
B
1)
L
1
X
▼ Circuit diagram LA.S with separate flow control
SL
1
B
M
B
1)
L
X
1
▼ Circuit diagram LA.DS
SL
1
B
M
B
1)
L
X
1
1 The metering orifice and the pressure relief valve and
line are not included in the scope of delivery.
1) Only with port plates 22 and 32
RE 92705/06.2016, Bosch Rexroth AG
Axial piston variable pump | A10VO Series 32
ED – Electro-hydraulic pressure control
15
ED – Electro-hydraulic pressure control
The ED valve is set to a certain pressure by a specified
variable solenoid current.
When changing the consumer (load pressure), this causes
an increase or decrease in the pump swivel angle (flow) in
order to maintain the electrically set pressure level.
The pump thus only delivers as much hydraulic fluid as the
consumers can take. The desired pressure level can be set
steplessly by varying the solenoid current.
As the solenoid current signal drops towards zero, the
pressure will be limited to p
max
by an adjustable hydraulic
pressure cut-off (secure fail safe function in case of power
failure, e.g. for fan speed control). The response time
characteristic curve of the ED control was optimized for the
use as a fan drive system.
When ordering, specify the type of application in plain text.
▼ Static current-pressure characteristic curve ED
(negative characteristic curve measured with pump in zero stroke)
280
0
I/I
max
1
ED
140
Amperage
Working pressure [bar]
Deactivation
of control
Min. adjustable control pressure
Max. adjustable
control pressure
Hysteresis static < 3bar.
▼ Flow-pressure characteristic curve
280
q
v min
q
v max
140
Maximum working pressure P [bar]
(deenergized)
Setting range
Flow q
V
Hysteresis/pressure rise Δp
max
< 4bar
Characteristic curves valid at n
1
= 1500 rpm and θ
fluid
= 50°C.
Control fluid consumption: 3 to 4.5 l/min.
For standby standard setting, see diagram on right, other
values on request.
▼ Influence of the pressure setting on standby
(maximally energized)
30
28
34
32
26
24
22
20
18
16
14
140 160 180 200 220 240 260 280
Maximum pressure setting [bar]
Standby [bar]
▼ Circuit diagram ED71/ED72
S
L
1
B
M
B
1)
L
X
Technical data, solenoid ED71 ED72
Voltage 12 V (±20%) 24 V (±20%)
Control current
Start of control at p
max
100 mA 50 mA
End of control at p
min
1200 mA 600 mA
Current limit 1.54 A 0.77 A
Nominal resistance (at 20 °C) 5.5 Ω 22.7 Ω
Dither frequency 100 to
200 Hz
100 to
200 Hz
Duty cycle 100% 100%
Controls and type of protection: see connector version page 50
Operating temperature range at valve -20°C to +115°C
1) Only with port plates 22 and 32
Bosch Rexroth AG, RE 92705/06.2016
16 A10VO Series 32 | Axial piston variable pump
ER – Electro-hydraulic pressure control
ER – Electro-hydraulic pressure control
The ER valve is set to a certain pressure by a specified
variable solenoid current.
When a change is made at the consumer (load pressure),
the position of the control spool will shift.
This causes an increase or decrease in the pump swivel angle
(flow) in order to maintain the electrically set pressure level.
The pump thus only delivers as much hydraulic fluid as the
consumers can take. The desired pressure level can be set
steplessly by varying the solenoid current.
As the solenoid current signal drops towards zero, the
pressure will be limited to p
min
(stand by).
▼ Static current-pressure characteristic curve ER
(positive characteristic curve measured with pump in zero stroke)
01
0
50
14
150
250
280
Current I/I
max
Maximum adjustable
control pressure
Minimum adjustable
control pressure
Working pressure p
B
[bar]
Hysteresis static current-pressure characteristic curve < 3bar.
▼ Flow-pressure characteristic curve
280
q
v min
q
v max
140
Maximum working pressure P [bar]
(fully energized)
Setting range
Flow q
V
Hysteresis/pressure rise Δp
max
< 4bar
Characteristic curves valid at n
1
= 1500 rpm and θ
fluid
= 50°C.
Control fluid consumption: 3 to 4.5 l/min.
Standby standard 14bar. Other values on request.
Influence of pressure setting on stand-by ±2bar.
▼ Circuit diagram ER71/ER72
S
L
1
B
M
B
1)
L
X
Technical data, solenoid ED71 ED72
Voltage 12 V (±20 %) 24 V (±20 %)
Control current
Start of control at p
min
100 mA 50 mA
End of control at p
max
1200 mA 600 mA
Current limit 1.54 A 0.77 A
Nominal resistance (at 20 °C) 5.5 Ω 22.7 Ω
Dither frequency 100 to
200 Hz
100 to
200 Hz
Duty cycle 100% 100 %
Controls and type of protection: see connector version page 50
Operating temperature range at valve -20°C to +115°C
Project planning note!
Excessive current levels (I > 1200 mA at 12 V or I > 600mA
at 24 V) to the ER solenoid can result in undesired pres-
sure increases which can lead to pump or system damage.
Therefore:
▶ Use I
max
current limiter solenoids.
▶ An intermediate plate pressure controller can be used
to protect the pump in the event of overflow.
An accessory kit with intermediate plate pressure control-
ler can be ordered from Bosch Rexroth under part number
R902490825.
1) Only with port plates 22 and 32
RE 92705/06.2016, Bosch Rexroth AG
Axial piston variable pump | A10VO Series 32
Dimensions size 45
17
Dimensions [mm]
Dimensions size 45
DRF, DRS, DRSC – Pressure and flow control, port plate 11 and 12; mounting flange C (SAE-B; 101-2)
-0.054
0
Z
X
X
35.7
Ø40
69.9
S
B
Ø25
52.4
26.2
129
146
154
9090
max. 110
40
146
9.5
L
L
X
L
1
Ø101.6
-0.054
0
Ø101.6
219
184
966.3
184
45
14.3
80.5
93.5
Ø14
83
45°
45°
88
B
S
Ø40
69.9
Ø25
52.4
26.235.7
5050
X
82
245
40
max. 110
189
9.5
L
L
1
228
96
6.3
45
14.3
W
V
Flange
ISO 3019-1
Valve mounting for
counter-clockwise
rotation
Detail V
▼ Port plate 12
▼ Port plate 11
Detail W
Detail Z
Valve mounting for
counter-clockwise
rotation
Flange
ISO 3019-1
Bosch Rexroth AG, RE 92705/06.2016
18 A10VO Series 32 | Axial piston variable pump
Dimensions size 45
Dimensions [mm]
▼ Port plate 12
▼ Port plate 11
DRF, DRS, DRSC – Pressure and flow control, port plate 11 and 12; mounting flange D (SAE-C; 127-4)
35.7
Ø40
69.9
S
B
Ø25
52.4
26.2
-0.063
0
Ø127
Z
X
88
40
max. 110
V
W
B
S
Ø40
69.9
Ø25
52.4
26.235.7
5050
X
82
129
146
154
9090
max. 110
40
114.5
12.7
219
146
95.56.3
184
45
15.5
89.5
57.5°
ø14.3
114.5
78.5
10
94
X
L
1
L
-0.063
0
Ø127
22812.7
245
95.56.3
189
45
15.5
L
1
L
Valve mounting for
counter-clockwise
rotation
Valve mounting for
counter-clockwise
rotation
Flange
ISO 3019-1
Flange
ISO 3019-1
Detail V Detail W
Detail Z
RE 92705/06.2016, Bosch Rexroth AG
Axial piston variable pump | A10VO Series 32
Dimensions size 45
19
Dimensions [mm]
▼ Splined shaft 1 in (SAE J744) ▼ Splined shaft 1 in (SAE J744)
S ‒ 15T 16/32DP
1)
R ‒ 15T 16/32DP
1)2)
45.9
16
5
38
30
1/4-20UNC-2B
3) 4)
Ø28
1/4-20UNC-2B
3) 4)
16
45.9
29.5
5
Ø28
▼ Splined shaft 7/8 in (SAE J744)
U ‒ 13T 16/32DP
1)
41
16
5
33.1
25.1
1/4-20UNC-2B
3) 4)
Ports Standard Size
4)
p
max
[bar]
5)
State
9)
B Working port (standard pressure series)
Fastening thread
SAE J518
6)
DIN 13
1 in
M10 x 1.5, 17 deep
350 O
S Suction port (standard pressure series)
Fastening thread
SAE J518
6)
DIN 13
1 1/2 in
M12 x 1.75; 20 deep
10 O
L Drain port ISO 11926
7)
7/8-14UNF-2B; 13 deep 2 O
8)
L
1
Drain port ISO 11926
7)
7/8-14UNF-2B; 13 deep 2 X
8)
X Pilot pressure ISO 11926 7/16-20 UNF-2A; 12 deep 350 O
M
B
Measuring pressure B DIN 3852-2
7)
G 1/4 in; 12 deep 350 X
Usable spline
length
1) Involute spline according to ANSIB92.1a, 30° pressure angle, flat
root, side fit, tolerance class5
2) Splines according to ANSI B92.1a, run out of spline is a deviation
from standard.
3) Thread according to ASME B1.1
4) For notes on tightening torques, see the instruction manual.
5) Depending on the application, momentary pressure peaks can occur.
Keep this in mind when selecting measuring devices and fittings.
6) Metric fastening thread is a deviation from standard.
7) The countersink can be deeper than as specified in the standard.
8) Depending on the installation position, L or L
1
must be connected
(also see installation instructions starting on page 51).
9) O= Must be connected (plugged when delivered)
X= Plugged (in normal operation)
Bosch Rexroth AG, RE 92705/06.2016
20 A10VO Series 32 | Axial piston variable pump
Dimensions size 45
Dimensions [mm]
Port plate 11
▼ DR – Pressure controller ▼ LA.DS – Pressure, flow and power controller
X
Z
245
2)
max. 110
X
112
49
91
245
max. 110
X
128
54
▼ DRG – Pressure controller, remotely controlled ▼ ED7./ER7. – Pressure controller, electrical
B
X
X
82
245
2)
40
max. 110
228
2)
Z
36
63.5
140
244
1)2)
Z
1) ER7. 279mm if using an intermediate plate pressure controller
2) To mounting flange
Valve mounting for
counter-clockwise
rotation
Valve mounting for
counter-clockwise
rotation
Valve mounting for counter-clockwise rotation see page 17 and 18
Valve mounting for
counter-clockwise
rotation
View Z
View Z View Z
RE 92705/06.2016, Bosch Rexroth AG
Axial piston variable pump | A10VO Series 32
Dimensions size 45
21
Dimensions [mm]
Port plate 12
▼ DR – Pressure controller ▼ LA.DS – Pressure, flow and power controller
X
146
max. 110
40
129
X
112
213
146
▼ DRG – Pressure controller, remotely controlled ▼ ED7./ER7. – Pressure controller, electrical
X
129
146
154
2)
max. 110
40
X
35.6
145.5
2)
140
X
1) ER7. 180.5mm if using an intermediate plate pressure controller
2) To mounting flange
Valve mounting for
counter-clockwise
rotation
Valve mounting for
counter-clockwise
rotation
Valve mounting for
counter-clockwise
rotation
Valve mounting for
counter-clockwise
rotation
Bosch Rexroth AG, RE 92705/06.2016
22 A10VO Series 32 | Axial piston variable pump
Dimensions size 71
Dimensions [mm]
Dimensions size 71
DRF, DRS, DRSC – Pressure and flow control, port plate 11 and 12; mounting flange C (SAE-C; 127-2)
L
S
B
X
L
77.8
Ø50
S
42.9
Ø25
52.4
26.2
B
257
V
W
92
max. 110
143107.5
160
40
53
18
Ø127
-0.063
0
Ø127
-0.063
0
Ø18
98
181
210
L
1
L
104104
183
6 115
12.7
45°
45°
X
217
X
53
18
L
L1
223
279
max. 110
40
6 115
26212.7
Z
42.9
77.8
26.2
Ø25
5858
B
S
X
52.4
Ø50
92
Detail W
Detail V
Flange
ISO 3019-1
Valve mounting for
counter-clockwise
rotation
Valve mounting for
counter-clockwise
rotation
Flange
ISO 3019-1
▼ Port plate 12
▼ Port plate 11
RE 92705/06.2016, Bosch Rexroth AG
Axial piston variable pump | A10VO Series 32
Dimensions size 71
23
Dimensions [mm]
DRF, DRS, DRSC – Pressure and flow control, port plate 12; mounting flange D (SAE-C; 127-4) and U (SAE-D; 152-4)
ø127
0
-0.063
Z
Z
Y
Y
257
ø25
52.4
26.2
S
B
S
42.9
ø50
77.8
40
max. 110
146
57.5°
ø14.3
146
114.5
18
90.5
160
103
114.5
13.5
53
217
6
12.7 115
183
107
B
M
B
L
X
L
1
104104
69
38
218
max. 110
143
143
160
257
40
ø20.6
161.6
200
200
161.6
53
18
217
6
12.7
ø152.4
0
0.063
115
107.5
104104
69
183
X X
X
L
L
1
Detail Z
View Y
Flange
ISO 3019-1
Flange
ISO 3019-1
Valve mounting for
counter-clockwise
rotation
▼ Port plate 12; mounting flange D
▼ Port plate 12; mounting flange U
Bosch Rexroth AG, RE 92705/06.2016
24 A10VO Series 32 | Axial piston variable pump
Dimensions size 71
Dimensions [mm]
▼ Splined shaft 1 1/4 in (SAE J744)
▼ Splined shaft 1 1/4 in (SAE J744)
S ‒ 14T 12/24DP
1)
R ‒ 14T 12/24DP
1)2)
55.4
19
6
47.5
39.5
5/16-18UNC-2B
3) 4)
5/16-18UNC-2B
3) 4)
19
6
55.4
38
▼ Splined shaft 1 in (SAE J744)
U ‒ 15T 16/32DP
1)
1/4-20UNC-2B
3) 4)
45.4
16
5
38
30.8
Ports Standard Size
4)
p
max abs
[bar]
5)
State
9)
B Working port (standard pressure series)
Fastening thread
SAE J518
6)
DIN 13
1 in
M10 x 1.5, 17 deep
350 O
S Suction port (standard pressure series)
Fastening thread
SAE J518
6)
DIN 13
2 in
M12 x 1.75; 20 deep
10 O
L Drain port ISO 11926
7)
7/8-14 UNF-2B; 12 deep 2 O
8)
L
1
Drain port ISO 11926
7)
7/8-14 UNF-2B; 12 deep 2 X
8)
X Pilot pressure ISO 11926 7/16-20 UNF-2B; 12 deep 350 O
M
B
Measuring pressure B DIN 3852-2
7)
G 1/4 in; 12 deep 350 X
Usable spline
length
1) Involute spline according to ANSIB92.1a, 30° pressure angle, flat
root, side fit, tolerance class5
2) Splines according to ANSI B92.1a, run out of spline is a deviation
from standard.
3) Thread according to ASME B1.1
4) For notes on tightening torques, see the instruction manual.
5) Depending on the application, momentary pressure peaks can occur.
Keep this in mind when selecting measuring devices and fittings.
6) Metric fastening thread is a deviation from standard.
7) The countersink can be deeper than as specified in the standard.
8) Depending on the installation position, L or L
1
must be connected
(also see installation instructions starting on page 51).
9) O= Must be connected (plugged when delivered)
X= Plugged (in normal operation)
RE 92705/06.2016, Bosch Rexroth AG
Axial piston variable pump | A10VO Series 32
Dimensions size 71
25
Dimensions [mm]
Port plate 11
▼ DR – Pressure controller
▼ LA.DS – Pressure, flow and power controller
279
2)
max. 110
Z
279
69
49
138
126.5
103
X
Z
▼ DRG – Pressure controller, remotely controlled ▼ ED7./ER7. – Pressure controller, electrical
2434482
EP
X
92
279
2)
262
2)
max. 110
40
X
Z
Z
140
279
1)2)
109
X
1) ER7. 314mm if using an intermediate plate pressure controller
2) To mounting flange
Valve mounting for
counter-clockwise
rotation
Valve mounting for
counter-clockwise
rotation
Valve mounting for
counter-clockwise
rotation
Valve mounting for
counter-clockwise
rotation
View Z View Z
View Z View Z
Bosch Rexroth AG, RE 92705/06.2016
26 A10VO Series 32 | Axial piston variable pump
Dimensions size 71
Dimensions [mm]
Port plate 12
▼ DR – Pressure controller
▼ LA.DS – Pressure, flow and power controller
max. 110
160
X
239
2)
143
160
126.5
40
▼ DRG – Pressure controller, remotely controlled ▼ ED7./ER7. – Pressure controller, electrical
X
40
max. 110
160
143
183
2)
160
1)2)
140
1) ER7. 195mm if using an intermediate plate pressure controller
2) To mounting flange
Valve mounting for
counter-clockwise
rotation
Valve mounting for
counter-clockwise
rotation
Valve mounting for
counter-clockwise
rotation
Valve mounting for
counter-clockwise
rotation
RE 92705/06.2016, Bosch Rexroth AG
Axial piston variable pump | A10VO Series 32
Dimensions size 100
27
Dimensions [mm]
Dimensions size 100
DRF, DRS, DRSC – Pressure and flow control, port plate 11, 12; mounting flange C (SAE-C; 127-2), D (SAE-D; 152-4)
119
273
329
40
max. 110
11.5
5555
50.8
ø60
88.9
66.7
31.8
Ø32
Ø20.6
114.5
103
161.6
161.6
57.5°
ø152.4
0
-0.063
12.7
5.7
99
20
200
200
149.5
312
80
15
100
119
S
B
X
L
L
1
X
Z
ø17.5
88.9
Ø60
50.8
40
114.5
100100
165
ø181
236
148
103 max. 110
Ø127
0
-0.063
12.7
5.7
99
20
149.5
234 11.5
80
15
45°
57.5°
260
302
119
S
S
B
X
L
L1
31.8
Ø32
66.7
B
W
V
Valve mounting for
counter-clockwise
rotation
Valve mounting for
counter-clockwise
rotation
View Z
Detail VDetail W
Flange
ISO 3019-1
Flange
ISO 3019-1
▼ Port plate 11; mounting flange D
▼ Port plate 12; mounting flange C
Bosch Rexroth AG, RE 92705/06.2016
28 A10VO Series 32 | Axial piston variable pump
Dimensions size 100
Dimensions [mm]
▼ Splined shaft 1 1/2 in (SAE J744) ▼ Splined shaft 1 1/4 in (SAE J744)
S ‒ 17T 12/24DP
1)
U ‒ 14T 12/24DP
1)
61.9
28
9.5
54
43.5
7/16-14UNC-2B
3)4)
55.4
19
6
47.5
35
5/16-18UNC-2B
3)4)
▼ Splined shaft 1 1/4 in (SAE J744)
W ‒ 14T 12/24DP
1)2)
5/16-18UNC-2B
3)4)
19
6
55.4
35
Ports Standard Size
4)
p
max abs
[bar]
5)
State
9)
B Working port (high-pressure series)
Fastening thread
SAE J518
6)
DIN 13
1 1/4 in
M14x2;19 deep
350 O
S Suction port (standard pressure series)
Fastening thread
SAE J518
6)
DIN 13
2 1/2 in
M12 x 1.75; 17 deep
10 O
L Drain port ISO 11926
7)
1 1/16-12 UNF-2B; 15 deep 2 O
8)
L
1
Drain port ISO 11926
7)
1 1/16-12 UNF-2B; 15 deep 2 X
8)
X Pilot pressure ISO 11926 7/16-20 UNF; 12 deep 350 O
M
B
Measuring pressure B DIN 3852-2
7)
G 1/4 in; 12 deep 350 X
Usable spline length
1) Involute spline according to ANSIB92.1a, 30° pressure angle, flat
root, side fit, tolerance class5
2) Splines according to ANSI B92.1a, run out of spline is a deviation
from standard.
3) Thread according to ASME B1.1
4) For notes on tightening torques, see the instruction manual.
5) Depending on the application, momentary pressure peaks can occur.
Keep this in mind when selecting measuring devices and fittings.
6) Metric fastening thread is a deviation from standard.
7) The countersink can be deeper than as specified in the standard.
8) Depending on the installation position, L or L
1
must be connected
(also see installation instructions starting on page 51).
9) O= Must be connected (plugged when delivered)
X= Plugged (in normal operation)
RE 92705/06.2016, Bosch Rexroth AG
Axial piston variable pump | A10VO Series 32
Dimensions size 100
29
Dimensions [mm]
Port plate 11
▼ DR – Pressure controller
▼ LA.DS – Pressure, flow and power controller
329
2)
max. 110
Z
96
2)
329
2)
X
145
49
Z
133
112.5
▼ DRG – Pressure controller, remotely controlled ▼ ED7./ER7. – Pressure controller, electrical
329
2)
40
max. 110
40
312
2)
100
X
X
Z
116.6
329
1)2)
139.9
Z
1) ER7. 364mm if using an intermediate plate pressure controller
2) To mounting flange
Valve mounting for
counter-clockwise
rotation
Valve mounting for
counter-clockwise
rotation
Valve mounting for
counter-clockwise
rotation
Valve mounting for
counter-clockwise
rotation
View Z View Z
View Z View Z
Bosch Rexroth AG, RE 92705/06.2016
30 A10VO Series 32 | Axial piston variable pump
Dimensions size 100
Dimensions [mm]
Port plate 12
▼ DR – Pressure controller
▼ LA.DS – Pressure, flow and power controller
165
max. 110
165
148
133
40
291
2)
X
▼ DRG – Pressure controller, remotely controlled ▼ ED7./ER7. – Pressure controller, electrical
40
max. 110
234
2)
X
X
165
148
X
140
165
1)
1) ER7. 200mm if using an intermediate plate pressure controller
2) To mounting flange
Valve mounting for
counter-clockwise
rotation
Valve mounting for
counter-clockwise
rotation
Valve mounting for
counter-clockwise
rotation
Valve mounting for
counter-clockwise
rotation
RE 92705/06.2016, Bosch Rexroth AG
Axial piston variable pump | A10VO Series 32
Dimensions size 140
31
Dimensions [mm]
Dimensions size 140
DRF, DRS, DRSC – Pressure and flow control, port plate 11 and 12; mounting flange C (SAE-C; 127-2)
S
X
L
L
1
163
180
29
max. 99
275
ø127
0
-0.063
ø127
0
-0.063
50.8
ø63
88.9
199
6
12.7
301
104
20
343
319
358
375
118.5
17.5
152
210
181
131
112
108
45°
110110
38
max. 108
B
ø32
66.7
31.8
S
B
L
L
1
199
6
12.7
104
20
V
W
X
S
B
107
66.7
31.8
50.8
ø63
88.9
6060
ø32
X
Z
Detail VDetail W
Valve mounting for
counter-clockwise
rotation
Flange
ISO 3019-1
Flange
ISO 3019-1
Valve mounting for
counter-clockwise
rotation
▼ Port plate 12; mounting flange C
▼ Port plate 11; mounting flange C
Bosch Rexroth AG, RE 92705/06.2016
32 A10VO Series 32 | Axial piston variable pump
Dimensions size 140
Dimensions [mm]
DRF, DRS, DRSC – Pressure and flow control, port plate 11 and 12; mounting flange D (SAE-D; 152-4)
X
S
B
L
1
L
max. 108
38
109
107
332
293
275
317
349
127.5
104 29
180
108
15
200
200
24
66.7
31.8
50.8
ø63
88.9
6060
ø32
57.5°
ø20.6
131
6.4
12.7
173
78
161.6
161.6
X
L
1
L
24
6.4
12.7
173
163
249
78
ø152.4
0
-0.063
ø152.4
0
-0.063
Z
V
W
110
max 99
110
B
ø32
66.7
S
50.8 31.8
ø63
88.9
Detail VDetail W
Valve mounting for
counter-clockwise
rotation
Flange
ISO 3019-1
Flange
ISO 3019-1
Valve mounting for
counter-clockwise
rotation
▼ Port plate 12; mounting flange D
▼ Port plate 11; mounting flange D
RE 92705/06.2016, Bosch Rexroth AG
Axial piston variable pump | A10VO Series 32
Dimensions size 140
33
Dimensions [mm]
▼ Splined shaft 1 3/4 in SAE J744 ▼ Splined shaft 1 1/2 in SAE J744
S ‒ 13T 8/16DP
1)
U ‒ 17T 12/24DP
1)
75
32
10
67
53
1/2-13UNC-2B
3)4)
62
28
6
54
43.5
7/16-14UNC-2B
3)4)
▼ Splined shaft 1 1/2 in SAE J744
W ‒ 17T 12/24DP
1)2)
7/16-14UNC-2B
3)4)
28
6
62
39
Ports Standard Size
4)
p
max abs
[bar]
5)
State
9)
B Working port (high-pressure series)
Fastening thread
SAE J518
6)
DIN 13
1 1/4 in
M14x2;19 deep
350 O
S Suction port (standard pressure series)
Fastening thread
SAE J518
6)
DIN 13
2 1/2 in
M12 x 1.75; 17 deep
10 O
L Drain port ISO 11926
7)
1 1/16-12 UNF-2B; 15 deep 2 O
8)
L
1
Drain port ISO 11926
7)
1 1/16-12 UNF-2B; 15 deep 2 X
8)
X Pilot pressure ISO 11926 7/16-20 UNF-2B; 12 deep 350 O
M
B
Measuring pressure B DIN 3852-2
7)
G 1/4 in; 12 deep 350 X
Usable spline length
1) Involute spline according to ANSIB92.1a, 30° pressure angle, flat
root, side fit, tolerance class5
2) Splines according to ANSI B92.1a, run out of spline is a deviation
from standard.
3) Thread according to ASME B1.1
4) For notes on tightening torques, see the instruction manual
5) Depending on the application, momentary pressure peaks can occur.
Keep this in mind when selecting measuring devices and fittings.
6) Metric fastening thread is a deviation from standard.
7) The countersink can be deeper than as specified in the standard.
8) Depending on the installation position, L or L
1
must be connected
(also see installation instructions starting on page 51).
9) O= Must be connected (plugged when delivered)
X= Plugged (in normal operation)
Bosch Rexroth AG, RE 92705/06.2016
34 A10VO Series 32 | Axial piston variable pump
Dimensions size 140
Dimensions [mm]
Port plate 11
▼ DR – Pressure controller; mounting flange D
▼ LA.DS – Pressure, flow and power controller
; mounting flange D
349 (375
1)
)
3)
max. 108
Z
99 (125
1)
)
3)
349 (319
1)
)
3)
X
152.5
139.5
119
49
Z
▼ DRG – Pressure controller, remotely controlled; mounting flange D ▼ ED7./ER7. – Pressure controller, electric; mounting flange D
349 (375
1)
)
3)
38
max. 108
332 (358
1)
)
3)
107
X
X
Z
Z
384
2)
(410
1)2)
)
3)
349 (375
1)
)
3)
124
138
1) Dimension of mounting flange C
2) ER7. If using an intermediate plate pressure controller
3) To mounting flange
Valve mounting for
counter-clockwise
rotation
Valve mounting for
counter-clockwise
rotation
Valve mounting for
counter-clockwise
rotation
Valve mounting for
counter-clockwise
rotation
View Z View Z
View Z View Z
RE 92705/06.2016, Bosch Rexroth AG
Axial piston variable pump | A10VO Series 32
Dimensions size 140
35
Dimensions [mm]
Port plate 12
▼ DR – Pressure controller; mounting flange D
▼ LA.DS – Pressure, flow and power controller
; mounting flange D
180
max. 99
X
108
29
163
180
139.5
306 (332
1)
)
3)
▼ DRG – Pressure controller, remotely controlled; mounting flange D ▼ ED7./ER7. – Pressure controller, electric; mounting flange D
X
275 (301
1)
)
3)
29
163
180
max. 99
X
129
180
2)
1) Dimension of mounting flange C
2) ER7. 215mm if using an intermediate plate pressure controller
3) To mounting flange
Valve mounting for
counter-clockwise
rotation
Valve mounting for
counter-clockwise
rotation
Valve mounting for
counter-clockwise
rotation
Valve mounting for
counter-clockwise
rotation
Bosch Rexroth AG, RE 92705/06.2016
36 A10VO Series 32 | Axial piston variable pump
Dimensions size 180
Dimensions [mm]
Dimensions size 180
DRF, DRS, DRSC – Pressure and flow control, port plate 11, 22 and 32; mounting flange D (SAE-D; 152-4)
max 121
22
20.6
161.6
ø152.4
0.000
-0.063
ø152.4
0.000
-0.063
66.7
ø32
31.8
365
78
285
24.2
6.4
12.7
173
268
ø63
110110
S
104
42
40
110.5
15
200
200
M
B
XX
X
B
L
L
1
71
161.6
57.5°
188
171
127.5
88.9
50.8
131
ø63
88.9
ø32
66.7
31.8
50.8
60 60
S
B
max. 119.1
6.4
78
318
24.2
12.7 173
382
108
365
L
Z
V
W
L
1
Detail XDetail W
Valve mounting for
counter-clockwise
rotation
Valve mounting for
counter-clockwise
rotation
Flange
ISO 3019-1
Flange
ISO 3019-1
▼ Port plate 22 and 32
▼ Port plate 11
View Z
RE 92705/06.2016, Bosch Rexroth AG
Axial piston variable pump | A10VO Series 32
Dimensions size 180
37
Dimensions [mm]
▼ Splined shaft 1 3/4 in SAE J744 ▼ Splined shaft 1 1/2 in SAE J744
S ‒ 13T 8/16DP
1)
W ‒ 17T 12/24DP
1)2)
75
32
10
67
53
1/2-13UNC-2B
3)4)
7/16-14UNC-2B
3)4)
28
6
62.6
39
Ports Standard Size
4)
p
max abs
[bar]
5)
State
9)
B Working port (high-pressure series)
Fastening thread
SAE J518
6)
DIN 13
1 1/4 in
M14x2;19 deep
350 O
S Suction port (standard pressure series)
Fastening thread
SAE J518
6)
DIN 13
2 1/2 in
M12 x 1.75; 17 deep
10 O
L Drain port ISO 11926
7)
1 5/16-12 UN-2B; 15 deep 2 O
8)
L
1
Drain port ISO 11926
7)
1 5/16-12 UN-2B; 15 deep 2 X
8)
X Pilot pressure ISO 11926 7/16-20 UNF-2B; 12 deep 350 O
M
B
Measuring pressure B DIN 3852-2
7)
G 1/4 in; 12 deep 350 X
Usable spline
length
1) Involute spline according to ANSIB92.1a, 30° pressure angle, flat
root, side fit, tolerance class5
2) Splines according to ANSI B92.1a, run out of spline is a deviation
from standard.
3) Thread according to ASME B1.1
4) For notes on tightening torques, see the instruction manual
5) Depending on the application, momentary pressure peaks can occur.
Keep this in mind when selecting measuring devices and fittings.
6) Metric fastening thread is a deviation from standard.
7) The countersink can be deeper than as specified in the standard.
8) Depending on the installation position, L or L
1
must be connected
(also see installation instructions starting on page 51).
9) O= Must be connected (plugged when delivered)
X= Plugged (in normal operation)
38 A10VO Series 32 | Axial piston variable pump
Dimensions size 180
Dimensions [mm]
Bosch Rexroth AG, RE 92705/06.2016
Port plate 11
▼ DR – Pressure controller
▼ LA.DS – Pressure, flow and power controller
Z
max. 119.1
382
2)
Z
152.5
47
119
139.5
X
99
2)
382
2)
▼ DRG – Pressure controller, remotely controlled ▼ ED7./ER7. – Pressure controller, electrical
Z
max. 119.1
40
382
2)
365
2)
108
X
374
1)2)
Z
124
138
X
1) ER7. 409mm if using an intermediate plate pressure controller
2) To mounting flange
Valve mounting for
counter-clockwise
rotation
Valve mounting for
counter-clockwise
rotation
Valve mounting for
counter-clockwise
rotation
Valve mounting for
counter-clockwise
rotation
View Z View Z
View Z View Z
RE 92705/06.2016, Bosch Rexroth AG
Axial piston variable pump | A10VO Series 32
Dimensions size 180
39
Dimensions [mm]
Port plate 22 and 32
▼ DR – Pressure controller
▼ LA.DS – Pressure, flow and power controller
122
268
2)
X
188
171
140
42
327
2)
X
188
▼ DRG – Pressure controller, remotely controlled ▼ ED7./ER7. – Pressure controller, electrical
122
42
268
2)
X
188
171
180
1)2)
140
1) ER7. 215mm if using an intermediate plate pressure controller
2) To mounting flange
Valve mounting for
counter-clockwise
rotation
Valve mounting for
counter-clockwise
rotation
Valve mounting for
counter-clockwise
rotation
Valve mounting for
counter-clockwise
rotation
Bosch Rexroth AG, RE 92705/06.2016
40 A10VO Series 32 | Axial piston variable pump
Dimensions, through drives
Dimensions [mm]
Dimensions, through drives
Flange ISO 3019-1 (SAE J744) Hub for splined shaft
1)
Availability over sizes Code
Diameter Attachment
2)
Diameter 45 71 100 140 180
82-2 (A)
, ,
5/8 in
9T 16/32DP
● ● ● ● –
K01
, ,
5/8 in
9T 16/32DP
○ ○ ○ ○ ●
U01
●
= Available
○
= On request
– = Not available
▼ 82-2 (A) ▼ 82-2 (A)
Ø106.5
45°
B
A
10
Ø82.55
+0.050
–0.020
M4
M3
M2
45°
45°
Ø91
+0.2
9
M2
M3
Ø82.55
+0.05
+0.02
Ø106.5
A
A
K01
(SAE J744 16-4 (A))
NG M1 M2 M3 M4 U01
(SAE J744 16-4 (A))
NG M1 M2 M3
45 229 10.7 53.4 M10 × 1.5;
16 deep
180 387 On request
71 267 11.8 61.3 M10 × 1.5;
20 deep
100 338 10.5 65 M10 × 1.5;
16 deep
140
5)
350 10.8 77.3 M10 × 1.5;
16 deep
140
6)
376
1) According to ANSI B92.1a, 30° pressure angle, flat root, side fit,
tolerance class 5
2) Mounting through bores pattern viewed from through drive with
control at top
3) Thread according to DIN 13, observe the instructions in the in-
struction manual for the maximum tightening torques.
4) O-ring included in the scope of delivery
5) With D-flange
6) With C-flange
M1 (to mounting flange)
M1 (to mounting flange)
M10; 16 deep
3)
O-Ring
4)
O-Ring
4)
RE 92705/06.2016, Bosch Rexroth AG
Axial piston variable pump | A10VO Series 32
Dimensions, through drives
41
Dimensions [mm]
1) Hub for splined shaft according to ANSI B92.1a, 30° pressure
angle, flat root, side fit, tolerance class 5
2) Mounting through bores pattern viewed from through drive with
control at top
3) Thread according to DIN 13, observe the instructions in the in-
struction manual for the maximum tightening torques.
4) O-ring included in the scope of delivery
5) With D-flange
6) With C-flange
Flange ISO 3019-1 (SAE J744) Hub for splined shaft
1)
Availability over sizes Code
Diameter Attachment
2)
Diameter 45 71 100 140 180
82-2 (A)
, ,
3/4 in
11T 16/32DP
● ● ● ● –
K52
, ,
3/4 in
11T 16/32DP
○ ○ ○ ○ ●
U52
●
= Available
○
= On request
– = Not available
▼ 82-2 (A) ▼ 82-2 (A)
45°
B
A
M4
M3
M2
Ø82.55
+0.05
-0.02
10
Ø106.5
Ø82.55
+0.05
+0.02
Ø91
+0.2
9
M3
M2
45°
45°
Ø106.5
A
A
K52
(SAE J744 19-4 (A-B))
NG M1 M2 M3 M4 U52
SAE J744 19-4 (A-B))
NG M1 M2 M3
45 229 18.9 38.7 M10 × 1.5;
16 deep
180 387 On request
71 267 21.3 41.4 M10 × 1.5;
20 deep
100 338 19 38.9 M10 × 1.5;
16 deep
140
5)
350 18.9 38.6 M10 × 1.5;
16 deep
140
6)
376
M1 (to mounting flange)
M1 (to mounting flange)
O-Ring
4)
O-Ring
4)
Bosch Rexroth AG, RE 92705/06.2016
42 A10VO Series 32 | Axial piston variable pump
Dimensions, through drives
Dimensions [mm]
1) Hub for splined shaft according to ANSI B92.1a, 30° pressure
angle, flat root, side fit, tolerance class 5
2) Mounting through bores pattern viewed from through drive with
control at top
3) Thread according to DIN 13, observe the instructions in the in-
struction manual for the maximum tightening torques.
4) O-ring included in the scope of delivery
5) With D-flange
6) With C-flange
Flange ISO 3019-2 (metric) Hub for splined shaft
1)
Availability over sizes Code
Diameter Attachment
2)
Diameter 45 71 100 140 180
101-2 (B)
, ,
7/8 in
13T 16/32DP
● ● ● ● –
K68
, ,
7/8 in
13T 16/32DP
○ ○ ○ ○ ●
U68
●
= Available
○
= On request
– = Not available
▼ 101-2 ▼ 101-2
A
B
M4
45°
Ø101.6
+0.05
–0.02
M2
M3
10
Ø146
Ø109.4
+0.2
M3
M2
9
Ø101.6
+0.05
+0.02
Ø146
45°
45°
A
A
K68
(SAE J744 22-4) (B))
NG M1 M2 M3 M4 U68
(SAE J744 22-4) (B))
NG M1 M2 M3
45 229 17.9 41.7 M12 × 1.75;
18 deep
180 387 18.6 42.4
71 267 20.3 44.1 M12 × 1.75;
20 deep
100 338 18 41.9 M12 × 1.75;
20 deep
140
5)
350 17.8 41.6 M12 × 1.75;
20 deep
140
6)
376
M1 (to mounting flange)
M1 (to mounting flange)
M12; 22 deep
3)
O-Ring
4)
O-Ring
4)
RE 92705/06.2016, Bosch Rexroth AG
Axial piston variable pump | A10VO Series 32
Dimensions, through drives
43
Dimensions [mm]
Flange ISO 3019-1 (SAE J744) Splined shaft
1)
Availability over sizes Code
Diameter Attachment
2)
Diameter 45 71 100 140 180
101-2 (B)
, ,
1 in
15T 16/32DP
● ● ● ● –
K04
, ,
1 in
15T 16/32DP
○ ○ ○ ○ ●
U04
●
= Available
○
= On request
– = Not available
▼ 101-2 (B) ▼ 101-2 (B)
A
B
M4
45°
Ø101.6
+0.05
–0.02
M2
M3
10
Ø146
Ø109.4
+0.2
M3
M2
9
Ø101.6
+0.05
+0.02
Ø146
45°
45°
A
A
K04
(SAE J744 25-4 (B-B))
NG M1 M2 M3 M4 U04
(SAE J744 25-4 (B-B))
NG M1 M2 M3
45 229 18.4 46.7 M12 × 1.75;
18 deep
180 387 On request
71 267 20.8 49.1 M12 × 1.75;
20 deep
100 338 18.2 46.6 M12 × 1.75;
20 deep
140
5)
350 18.3 45.9 M12 × 1.75;
20 deep
140
6)
376
1) Hub for splined shaft according to ANSI B92.1a, 30° pressure
angle, flat root, side fit, tolerance class 5
2) Mounting through bores pattern viewed from through drive with
control at top
3) Thread according to DIN 13, observe the instructions in the in-
struction manual for the maximum tightening torques.
4) O-ring included in the scope of delivery
5) With D-flange
6) With C-flange
M1 (to mounting flange)
M1 (to mounting flange)
O-Ring
4)
O-Ring
4)
Bosch Rexroth AG, RE 92705/06.2016
44 A10VO Series 32 | Axial piston variable pump
Dimensions, through drives
Dimensions [mm]
Flange ISO 3019-1 (SAE J744) Splined shaft
1)
Availability over sizes Code
Diameter Attachment
2)
Diameter 45 71 100 140 180
127-2 (C)
,
1 1/4 in
14T 12/24DP
– ● ● ● –
K07
, ,
1 1/4 in
14T 12/24DP
– ○ ○ ○ ●
U07
●
= Available
○
= On request
– = Not available
▼ 127-2 (C) ▼ 127-2 (C)
45°
A
B
Ø181
Ø127
+0.05
–0.02
M2
M3
M4
13
A
B
45°
Ø181
M2
Ø127
+0.05
–0.02
M3
13
K07
(SAE J744 32-4 (C))
NG M1 M2 M3 M4
3)
U07
(SAE J744 32-4 (C))
NG M1 M2 M3
71 267 21.8 58.6 M16 × 2;
continuous
180 387 18.9 56.1
100 338 19.5 56.4 M16 × 2;
continuous
140
5)
350 19.3 56.1 M16 × 2; 24 deep
140
6)
376
1) Hub for splined shaft according to ANSI B92.1a, 30° pressure
angle, flat root, side fit, tolerance class 5
2) Mounting through bores pattern viewed from through drive with
control at top
3) Thread according to DIN 13, observe the instructions in the in-
struction manual for the maximum tightening torques.
4) O-ring included in the scope of delivery
5) With D-flange
6) With C-flange
M1 (to mounting flange) M1 (to mounting flange)
O-Ring
4)
O-Ring
4)
Omitted for
NG 71
Omitted for
NG 71
M16; 22 deep
RE 92705/06.2016, Bosch Rexroth AG
Axial piston variable pump | A10VO Series 32
Dimensions, through drives
45
Dimensions [mm]
Flange ISO 3019-1 (SAE J744) Splined shaft
1)
Availability over sizes Code
Diameter Attachment
2)
Diameter 45 71 100 140 180
127-2 (C)
,
1 1/2 in
17T 12/24DP
– – ● ● –
K24
, ,
1 1/2 in
17T 12/24DP
– – ○ ○ ●
U24
●
= Available
○
= On request
– = Not available
▼ 127-2 (C) ▼ 127-2 (C)
ø181
45°
A
B
M2
M3
M4
M3a
13
ø127
+0.05
–0.02
45°
45°
Ø181
M3
M2
Ø127
+0.05
+0.02
13
A
A
K24
(SAE J744
38-4 (C-C))
NG M1 M2 M3 M3a M4
3)
U24
(SAE J744 38-4 (C-C))
NG M1 M2 M3
180 387 9.9 62.3
100 323 9.9 65 – M16 × 2;
continuous
140
5)
350 9.7 – 69.1 M16 × 2; 24 deep
140
6)
376
1) Hub for splined shaft according to ANSI B92.1a, 30° pressure
angle, flat root, side fit, tolerance class 5
2) Mounting through bores pattern viewed from through drive with
control at top
3) Thread according to DIN 13, observe the instructions in the
instruction manual for the maximum tightening torques.
4) O-ring included in the scope of delivery
5) With D-flange
6) With C-flange
M1 (to mounting flange)
M1 (to mounting flange)
O-Ring
4)
O-Ring
4)
M16; 22 deep
3)
Bosch Rexroth AG, RE 92705/06.2016
46 A10VO Series 32 | Axial piston variable pump
Dimensions, through drives
Dimensions [mm]
1) Hub for splined shaft according to ANSI B92.1a, 30° pressure
angle, flat root, side fit, tolerance class 5
2) Mounting through bores pattern viewed from through drive with
control at top
3) Thread according to DIN 13, observe the instructions in the
instruction manual for the maximum tightening torques.
4) O-ring included in the scope of delivery
Flange ISO 3019-1 (SAE J744) Splined shaft
1)
Availability over sizes Code
Diameter Attachment
2)
Diameter 45 71 100 140 180
127-4 (C)
1 1/4 in
14T 12/24DP
– ○ ● ● –
K15
1 1/4 in
14T 12/24DP
– – ○ ○ ●
U15
●
= Available
○
= On request
– = Not available
▼ 127-4 (C) ▼ 127-4 (C)
13
Ø127
+0.050
-0.020
114.5
114.5
M4
M3
M2
A
B
M3
M2
Ø136
+0.2
Ø127
+0.05
+0.02
13
114.5
114.5
A
A
K15
(SAE J744 32-4 (C))
NG M1 M2 M3 M4
3)
U15
(SAE J744 32-4 (C))
NG M1 M2 M3
100 338 17.9 56.5 M12 × 1.75; 22 deep 180 387 20 57
140 350 17.9 56.5 M12 × 1.75; 22 deep
M1 (to mounting flange)
M1 (to mounting flange)
O-Ring
4)
O-Ring
4)
M12; 22 deep
3)
RE 92705/06.2016, Bosch Rexroth AG
Axial piston variable pump | A10VO Series 32
Dimensions, through drives
47
Dimensions [mm]
Flange ISO 3019-1 (SAE J744) Splined shaft
1)
Availability over sizes Code
Diameter Attachment
2)
Diameter 45 71 100 140 180
152-4 (D)
1 3/4 in
13T 8/16DP
– – – ● –
K17
1 3/4 in
13T 8/16DP
– – – ○ ●
U17
●
= Available
○
= On request
– = Not available
▼ 152-4 (D) ▼ 152-4 (D)
A
B
M2
M3
13
ø152.4
+0.07
–0.02
161.6
161.6
M3
M2
13
Ø152.4
Ø163
+0.05
+0.02
+0.2
161.6
161.6
A
A
K17
152-4 (D)
NG M1 M2 M3 U17
152-4 (D)
NG M1 M2 M3
140 350 11 77.3 180 387 10.8 78.1
1) Hub for splined shaft according to ANSI B92.1a, 30° pressure
angle, flat root, side fit, tolerance class 5
2) Mounting through bores pattern viewed from through drive with
control at top
3) Thread according to DIN 13, observe the instructions in the in-
struction manual for the maximum tightening torques.
4) O-ring included in the scope of delivery
M1 (to mounting flange)
M1 (to mounting flange)
M16; continuous
3)
M16; 22 deep
3)
O-Ring
4)
O-Ring
4)
Bosch Rexroth AG, RE 92705/06.2016
48 A10VO Series 32 | Axial piston variable pump
Overview of mounting options
1) 1st Pump only with mounting flanges D or U for Uxx through drives
(for more information, see also ordering code on page 3).
Overview of mounting options
Through drive Mounting options – 2nd pump
Flange (SAE)
ISO 3019-1
Hub for splined shaft Code
1)
A10VO/31 and 32
NG(shaft)
A10VO/52 and 53
NG(shaft)
External gear pump
82-2 (A) 5/8 in (K)(U)01
18 (U)/31 10 (U), 18 (U)
Design F
3/4 in (K)(U)52
18 (S, R)/31 10 (S) 18 (S, R)
101-2 (B) 7/8 in (K)(U)68 28 (S, R)/31 28 (S, R)
Design N/G
1 in (K)(U)04 45 (S, R) 45 (S, R) –
127-2 (C) 1 1/4 in (K)(U)07 71 (S, R)
85 (U,W) –
1 1/2 in (K)(U)24 100 (S)
85 (S), 100 (S) –
127-4 (C) 1 in UE2 45 (S, R)/32
60, 63, 72 (U, W) –
1 1/4 in (K)(U)15 71 (S, R)/32
63 (S, R), 72 (S, R) –
152-4 (D) 1 3/4 in (K)(U)17 140 (S); 180 (S)/32
– –
Mounting flange C, D and U (see order item 09 in the order-
ing code) and port plate with a K.. or U.. Through drive (see
or items 10 and 11 in the ordering code) directly connected
by the static and dynamic loading when installed.
The following table shows the version to be selected:
Mounting flange C D U
Port plate 12 22 /32 22 /32
Through drive K.. U.. U..
RE 92705/06.2016, Bosch Rexroth AG
Axial piston variable pump | A10VO Series 32
Combination pumps A10VO + A10VO
49
Dimensions [mm]
Combination pumps A10VO + A10VO
By using combination pumps, it is possible to have inde-
pendent circuits without the need for splitter gearboxes.
When ordering combination pumps, the type designations
of the 1st and 2nd pumps must be linked by a “+”.
Order example:
A10VO100DR/32R-VSC12K07+
A10VO71DR/32R-VSC12N00
It is permissible to use a combination of two single pumps
of the same nominal size (tandem pump) considering a
dynamic mass acceleration of maximum 10 g (= 98.1 m/s
2
)
without additional support brackets.
For combination pumps consisting of more than two
pumps, the mounting flange must be rated for the permissi-
ble mass torque (please consult us).
The “K..” through drives are plugged with a non-pres-
sure-resistant cover. Before commissioning the units, they
must therefore be equipped with pressure-resistant covers.
Through drives can also be ordered with pressure-resistant
covers, please state in plain text.
The “U..” through drives are equipped with a flexible,
universal through drive (without hub and intermediate
flange) and a pressure-resistant cover. This enables the
utilization of various through drive options without any
machining of the port plate. Details of the necessary
adapter parts can be found in data sheet RE 95581.
Permissible mass moment of inertia
NG 45 71 100 140 180
for 4-hole flange
static
T
m
Nm 3000 3000 4500 4500 4500
dynamic at 10g (98.1m/s
2
)
T
m
Nm 300 300 450 450 450
for 2-hole flange
static
T
m
Nm 1370 2160 3000 3000
1)
–
dynamic at 10g (98.1m/s
2
)
T
m
Nm 137 216 300 300
1)
–
Weight with port plate 11/12N00 and
mounting flange C
m
kg 25.8 40.4 56.4 70.5 75.2
Weight with port plate 12K.. and mount-
ing flange C
m
kg 27.4 43.3 62.6 79.5 –
Weight with port plate 22(32)U00 and
mounting flange D or U
m
kg 32.6 51.8 76 90.2 89.4
Distance, center of gr avity at 11/12N00
l
1
mm 108 120 138 158 159
Distance, center of gravity at 12Kxx
l
1
mm 115 129 153 177 –
Distance, center of gravity at 22/32Uxx
l
1
mm 135 153 184 196 190
Please also pay attention to the installation information
onpage 53.
l
1
(l
1
)(M
1
)
(l
1
)(M
1
)(M
1
)
l
2
l
3
m
1
m
2
m
3
m
1
, m
2
, m
3
Weight of pump [kg]
l
1
, l
2
, l
3
Distance, center of
gravity
[mm]
T
m
= (m
1
• l
1
+ m
2
• l
2
+ m
3
• l
3
) •
1
[Nm]
102
Calculation for multiple pumps
l
1
= Distance, center of gravity, front pump (value from “Permis-
sible mass moment of inertia” table)
l
2
= Dimension “M1” from through drive drawings (page 40 to 47)
+ l
1
of the 2nd pump
l
3
= Dimension “M1” from through drive drawings (page 40 to 47)
of the 1st pump + “M1” of the 2nd pump + l
1
of the 3rd pump
1) Pump combinations permissible only max. as double pump up to
the same size.
Pump 1 Pump 2 Pump 3
Bosch Rexroth AG, RE 92705/06.2016
50 A10VO Series 32 | Axial piston variable pump
Connector for solenoids
Dimensions [mm]
Connector for solenoids
DEUTSCH DT04-2P
Molded connector, 2-pin, without bidirectional suppressor
diode
The following type of protection ensues with an installed
mating connector:
▶ IP67 (DIN/EN 60529) and
▶ IP69K (DIN 40050-9)
▼ Switching symbol
▼ Mating connector DEUTSCH DT06-2S-EP04
Consisting of DT designation
1 housing DT06-2S-EP04
1 wedge W2S
2 sockets 0462-201-16141
The mating connector is not included in the scope of delivery.
This can be supplied by Bosch Rexroth on request (material
number R902601804).
Electronic controls
Control Electronics function Electronics Data sheet
Electric pressure control Controlled power outlet RA analog 95230
RC4-5/30 digital 95205
Notice
If necessary, you can change the position of the connector
by turning the solenoid.
The procedure is defined in the instruction manual.
RE 92705/06.2016, Bosch Rexroth AG
Axial piston variable pump | A10VO Series 32
Installation instructions
51
1) Because complete air bleeding and filling are not possible in this
position, the pump should be air bled and filled in a horizontal po-
sition before installation.
Installation instructions
General
The axial piston unit must be filled with hydraulic fluid and
air bled during commissioning and operation. This must
also be considered with a long-term standstill.
Particularly with the “drive shaft up/down” installation
position, filling and air bleeding must be carried out com-
pletely as there is, for example, a danger of dry running.
The leakage in the housing area must be discharged to the
reservoir via the highest available tank port (L, L
1
).
If a shared drain line is used for several units, make sure
that the respective case pressure is not exceeded. The
shared drain line must be dimensioned to ensure that the
maximum permissible case pressure of all connected units
is not exceeded in any operating conditions, specifically on
cold start. If this is not possible, separate drain lines must
be laid if necessary.
To achieve favorable noise values, decouple all connecting
lines using elastic elements and avoid above-reservoir
installation.
In all operating conditions, the suction lines and the drain
lines must flow into the reservoir below the minimum fluid
level. The permissible suction height h
S
results from the
overall loss of pressure. However, it must not be higher
than h
S max
= 800 mm. The minimum suction pressure at
port S (see the technical data on page 6) must not be
fallen short of during operation and at cold starting either.
When designing the reservoir, ensure adequate distance
between the suction line and the drain line. This prevents the
heated, return flow from being drawn directly back into the
suction line.
Key
L, L
1
(F) Filling / air bleeding
S Suction port
L, L
1
Drain port
SB Baffle (baffle plate)
h
t min
Minimum required immersion depth (200 mm)
h
min
Minimum required distance to reservoir bottom (100 mm)
h
ES min
Minimum necessary height required to protect the axial
piston unit from draining (25 mm)
h
S max
Maximum permissible suction height (800 mm)
Installation position
See the following examples 1 to 9.
Further installation positions are available upon request.
Recommended installation position: 1 and 3
Below-reservoir installation (standard)
Below-reservoir installation means that the axial piston unit
is installed outside of the reservoir and below the minimum
fluid level of the reservoir.
Installation position Air bleed Filling
1
L
L
1
S
h
t min
SB
F
h
min
F F (L)
2
1)
SB
F
L
L
1
S
h
t min
h
min
F F (L
1
)
3
L
L
1
S
SB
F
h
t min
h
min
F F (L
1
)
Notice
Port F is part of the external piping and must be provided
on the customer side to make filling and air bleeding easier.
Bosch Rexroth AG, RE 92705/06.2016
52 A10VO Series 32 | Axial piston variable pump
Connector for solenoids
Dimensions [mm]
1) Because complete air bleeding and filling are not possible in this
position, the pump should be air bled and filled in a horizontal po-
sition before installation.
Above-reservoir installation
Above-reservoir installation means that the axial piston
unit is installed above the minimum fluid level of the reser-
voir. To prevent the axial piston unit from draining in posi-
tion 5, the height difference h
ESmin
must be at least 25mm.
Observe the maximum permissible suction height
h
Smax
= 800mm.
Installation position Air bleed Filling
4
L
L
1
S
F
SB
h
s max
h
t min
h
min
F F (L)
5
1)
SB
S
F
L
L
1
h
s max
h
t min
h
min
h
ES min
F F (L
1
)
6
L
L
1
S
F
SB
h
s max
h
t min
h
min
F F (L
1
)
A check valve in the drain line is only permissible in
individual cases. Consult us for approval.
Inside-reservoir installation
Inside-reservoir installation is when the axial piston unit is
installed in the reservoir below the minimum fluid level.
The axial piston unit is completely below the hydraulic fluid.
If the minimum fluid level is equal to or below the upper edge
of the pump, see chapter “Above-reservoir installation”.
Axial piston units with electrical components (e.g., electric
control, sensors) may not be installed in a reservoir below
the fluid level.
Installation position Air bleed Filling
7
L
L
1
S
h
min
SB
h
t min
Over the
highest tank
port L
Automatically
via the open
port L or L
1
due to the
position
under the
hydraulic
fluid level
8
1)
L
L
1
S
SB
h
min
h
t min
Over the
highest tank
port L
1
9
L
L
1
S
SB
h
min
h
t min
Over the
highest tank
port L
1
For key, see page 51.
RE 92705/06.2016, Bosch Rexroth AG
53
Assembly note
Due to the compact design of the housing, socket-head
screws with a hexagon socket must be used to attach the
axial piston pump. Please observe the maximum permissible
surface pressure according to VDI 2230.
Apart from this, you should take into account the information
regarding tightening torques in the instruction manual.
Bosch Rexroth AG, RE 92705/06.2016
54 A10VO Series 32 | Axial piston variable pump
Project planning notes
Project planning notes
▶ The A10VO axial piston variable pump is designed to be
used in open circuit.
▶ The project planning, installation and commissioning of
the axial piston unit requires the involvement of quali-
fied skilled personnel.
▶ Before using the axial piston unit, please read the corre-
sponding instruction manual completely and thoroughly.
If necessary, these can be requested from Bosch Rexroth.
▶ Before finalizing your design, please request a binding
installation drawing.
▶ The specified data and notes contained herein must be
observed.
▶ Depending on the operating conditions of the axial
piston unit (working pressure, fluid temperature), the
characteristic curve may shift.
▶ Preservation: Our axial piston units are supplied as
standard with preservative protection for a maximum of
12 months. If longer preservative protection is required
(maximum 24 months), please specify this in plain text
when placing your order. The preservation periods apply
under optimal storage conditions, details of which can
be found in the data sheet 90312 or the instruction
manual.
▶ Not all versions of the product are approved for use in a
safety function pursuant to ISO13849. Please consult the
responsible contact person at Bosch Rexroth if you require
reliability parameters (e.g. MTTF
d
) for functional safety.
▶ Depending on the type of control used, electromagnetic
effects can be produced when using solenoids. When a
direct current is applied, solenoids do not cause electro-
magnetic interference nor is their operation impaired by
electromagnetic interference.
Other behavior can result when a modulated direct
current (e.g. PWM signal) is applied. Potential electro-
magnetic interference for persons (e.g. persons with a
pacemaker) and other components must be tested by
the machine manufacturer.
▶ Pressure controllers are not protection against overpres-
sure. A pressure relief valve is to be provided for the
hydraulic system.
▶ Working ports:
– The ports and fastening threads are designed for the
specified maximum pressure. The machine or system
manufacturer must ensure that the connecting ele-
ments and lines correspond to the specified applica-
tion conditions (pressure, flow, hydraulic fluid, tem-
perature) with the necessary safety factors.
– The working ports and function ports are only
intended to accommodate hydraulic lines.
Safety instructions
▶ During and shortly after operation, there is a risk of
getting burnt on the axial piston unit and especially on
the solenoids. Take appropriate safety measures (e.g. by
wearing protective clothing).
▶ Moving parts in control equipment (e.g. valve spools)
can, under certain circumstances get blocked in posi-
tion as a result of contamination (e.g. impure hydraulic
fluid, abrasion, or residual dirt from components). As a
result, the hydraulic fluid flow and the build-up of torque
in the axial piston unit can no longer respond correctly
to the operator's specifications. Even the use of various
filter elements (external or internal flow filter) will not
rule out a fault but merely reduce the risk. The machine/
system manufacturer must check whether additional
measures are required on the machine for the relevant
application in order to bring the driven consumer into a
safe position (e.g. safe stop) and ensure any measures
are properly implemented.
RE 92705/06.2016, Bosch Rexroth AG
55 Axial piston variable pump | A10VO Series 32
56
Bosch Rexroth AG, RE 92705/06.2016
Bosch Rexroth AG
Mobile Applications
An den Kelterwiesen 14
72160 Horb a.N., Germany
Tel. +49 7451 92-0
info.ma@boschrexroth.de
www.boschrexroth.com
©BoschRexrothAG2016. All rights reserved, also regarding any disposal,
exploitation, reproduction, editing, distribution, as well as in the event of
applications for industrial property rights. The data specified within only
serves to describe the product. No statements concerning a certain condition
or suitability for a certain application can be derived from our information. he
information given does not release the user from the obligation of own
judgment and verification. It must be remembered that our products are
subject to a natural process of wear and aging.
A10VO Series 32 | Axial piston variable pump