Brueninghaus Hydromatik Rexroth A10VO & A10VSO pump

1 Brueninghaus Hydromatik Rexroth A10VO & A10 VSO pump Open circuit Size: Series: 31, 52, 53 Nominal pressure 280 bar. Peak pressure 350 bar Features Axial piston pump A10SO, variable, in swash plate design for hydrostatic transmissions in open loop circuit Flow is proportional to drive speed and displacement. By adjusting the swash plate angle it is possible to infinitely vary the flow Mounting flange acc. to SAE J744 Flanged ports acc. to SAE J518 2 case drain ports Good suction characteristics Permissible working pressure 280 bar Low noise level Long service life Axial and radial loading of drive shaft possible High power to weight ratio Wide range of controls Short response times Interchangeable with original Rexroth pump of the same model A10V SO 100DR /31 R- P P A 12 N00 Port type.

2 11,12, 41, 42, 61, 62, 91, 92 Variable displacement pump Mounting flange: Swash plate design variable, open circuit A= ISO 2-bolt SO= industrial pump B= ISO 4-bolt O= mobile pump C= SAE 2-bolt D=

3 SAE 4-bolt Size: 18, 28, 45, 71, 100, 140 Shaft end: P= Metric parallel key Control devices: S= SAE spline DG=two point.

4 Direct control K= SAE parallel key DR= pressure control R= SAE spline through drive DRG= remote control U= SAE spline DFR= pressure and flow control DFR1= orifice in X-channel closed DFLR= pressure, flow and torque control Seals: FHD= pilot pressure dependent displacement control with pressure control P=NBR ( Nitrile rubber) V=FKM (Fluoro rubber) Series: 31 Direction of rotation: R= clockwise.

5 L= anti-clockwise Through drive: NOO=without through drive With through drive*: K01= mounting flange: 82-2(A). Shaft/coupling: 16-4(A) K52= mounting flange: 82-2(A). Shaft/coupling: 19-4(A-B) K02= mounting flange: 101-2(B). Shaft/coupling: 22-4(B) K68= mounting flange: 101-2(B). Shaft/coupling: 22-4(B) K04= mounting flange: 101-2(B). Shaft/coupling: 25-4(B-B) K07= mounting flange: 127-2(C). Shaft/coupling: 32-4(C) K24= mounting flange: 127-2(C). Shaft/coupling: 38-4(C-C) K17= mounting flange: 152-4(D). Shaft/coupling: 44-4(D) *Flange acc. to ISO 3019-1. Coupling for splined shaft acc. to SAE J744 Rexroth A10VO & A10 VSO Parts information VIEW: A ITEM # 1: ROTARY GROUP ITEM # 2: CONTROL-ASS.

6 ITEM # 3: PUMP HOUSING ITEM # 4: END COVER-PORTS ITEM # 5: CRADEL ASS. ITEM # 6: SHAFT - DRIVE ITEM # 7: WASHER ITEM # 8: ADJUSTING DISC ITEM # 9: TAPPERED BRG ITEM # 10: TAPPERED BRG ITEM # 11: BEARING CRADLE ITEM # 12: SEAL - SHAFT ITEM # 13: O - RING ITEM # 14: O - RING ITEM # 15: SNAP RING ITEM # 16: CAP SCREWS ITEM # 17: CONTROL ASS. ITEM # 18: PLUG ITEM # 19: DOWEL PINS ITEM # 20: PLUG ITEM # 21: KEY ITEM # 22: COUPLING ITEM # 23: O - RING ITEM # 24: O - RING ITEM # 25: PLUG VIEW: B ITEM # 1: PISTONS ITEM # 2: BARREL ITEM # 3: LENS PLATE ITEM # 4: RETAINER PLATE ITEM # 5: RETAINING BALL ITEM # 6: SPRING ITEM # 7: PRESSURE PINS ITEM # 8: RETAINING RING ITEM # 9: RETAING CLIP VIEW: C ITEM # 1: CONTROL piston ITEM # 2: piston GUIDE ITEM # 3: COUNTER piston ITEM # 4: piston GUIDE ITEM # 5: SPRING ITEM # 6: LOCK NUT ITEM # 7: ACCORN NUT ITEM # 8: SCREW MAX.

7 ADJ. ITEM # 9: O-RING Hydraulic Fluid In order to select the correct fluid, it is necessary to know the operating temperature in the tank (open circuit) in relation to the ambient temperature. The hydraulic fluid should be selected so that within the operating temperature range, the viscosity lies within the optimum range ( opt.); see shaded section of the selection diagram. We recommend that the higher viscosity grade is selected in each case. Example: at an ambient temperature of X C the operating temperature in the tank is 60 C. In the optimum viscosity range opt (shaded area), this corresponds to viscosity grades VG 46 or VG 68, VG 68 should be selected. Important: The leakage oil temperature is influenced by pressure and speed and is typically higher than the tank temperature.

8 However max. Temperature at any point in the system may not exceed 115 C. Prior to project design, please see our data sheets RE 90220 (mineral oil) and RE 90221 (ecologically acceptable fluids) for detailed information on fluids and application conditions. When using ecologically acceptable fluids attention must be paid to possible limitations of the technical data. DG - two point, direct control The pump can be set to a minimum swivel angle by connecting an external switching pressure to port X. This will supply the control piston directly with control oil; a minimum pressure of 50 bars is required. DR - Pressure control The pressure control serves to maintain a constant pressure in the hydraulic system, within the control range of the pump.

9 The pump therefore supplies only the amount of hydraulic fluid required by the actuators. Pressure can be sleeplessly set at the pilot valve. DRG - Pressure control, remote A pressure relief valve may be externally piped to port X for remote control purposes. However it is not included in the scope of supply with the DRG control. The differential pressure at the DRG control spool is set as standard to 20 bar and this results in a pilot flow of 1, 5 L/min. If another setting is required, please state this in clear text. DFR/DFR1-Pressure-flow control In addition to the pressure control function, the pump flow to the actuator may be varied by means of a differential pressure (eg. over an orifice or directional control valve). The pump supplies only the amount of fluid as required by the actuator.

10 In the DFR1-valve DFLR - Pressure/flow/power control In order to achieve a constant drive torque with a varying operating pressure, the swivel angle and with it the output flow from the axial piston unit is varied so that the product of flow and pressure remains constant. FHD - Displacement control, pilot pressure dependent, with pressure control The swivel angle of the pump, and hence the displacement or flow, is dependent on the pilot pressure p St X in port X. A constant pressure at 35 bars is required at port Y. An overriding pressure control is integrated, and can be sleeplessly set at the control valve. Rexroth A10VO , A10 VSO Displacement Max Speed [rpm] Flow Weight cm 3 /r [ in 3 /r] gpm [L/min] kg [lbs] A10VO28DG/31 A10 VSO28DG/31 28 3600 15/33 A10VO28 DFR1/31 A10 VSO28 DFR1/31 28 3600 15/33 A10VO28DR/31 A10 VSO28DR/31 28 3600 15/33 A10VO28 DRG/31 A10 VSO28 DRG/31 28 3600 15/33 A10VO28 DFLR/31 A10 VSO28 DFLR/31 28 3600 15/33 A10VO28ED/31 A10 VSO28ED/31 28 3600 15/33 A10VO28 FHD/31 A10 VSO28 FHD/31 28 3600 15/33 A10VO28EF/31 A10 VSO28EF/31 28 3600 15/33 A10VO45DG/31 A10 VSO45DG/31 45 3100 21/46 A10VO45 DFR1/31 A10 VSO45 DFR1/31 45 3100 21/46 A10VO45DR/31 A10 VSO45DR/31 45 3100 21/46 A10VO45 DRG/31 A10 VSO45 DRG/31 45 3100 21/46 A10VO45 DFLR/31 A10 VSO45 DFLR/31 45 3100 21/46 A10VO45ED/31 A10 VSO45ED/31 45 3100 21/46 A10VO45 FHD/31 A10 VSO45 FHD/31 45 3100 21/46 A10VO45EF/31 A10 VSO45EF/31 45