Unit · AXIAL-PISTON PUMP
A A4VSO 125 DR /30R-VPB25UB3R902550034
Axial piston pump Bosch Rexroth series A4VSO, type code AA4VSO125DR/30R-VPB25UB3, material number R902550034. Nominal size: NG 125. Axial piston unit: swashplate design, variable, nominal pressure 350 bar, maximum pressure 400 bar (A4VS). Operating mode: pump, open circuit (O). Control device Information on controller selection: pressure controller (DR). Directions of rotation: viewed on drive shaft Clockwise (R). Drive shafts: parallel keyed shaft DIN 6885 (P). Mounting flange: based on ISO 3019-2 (metric) 4-hole (B). Working port: SAE flange ports, B and S with 90° lateral 2nd pressure port B metric fastening thread offset opposite B, plugged with flange plate on delivery (25).
- Number
- R902550034
- Type code
- A A4VSO 125 DR /30R-VPB25UB3
- Group
- A4VSO 125
- Edition
- 07/2020

| Pos. | Number | Name | Qty | Add to inquiry |
|---|---|---|---|---|
| R902485083 | BASE UNIT Assembly parts list →L | 1 | ||
| R902415041 | REGULATOR Assembly parts list →L | 1 | ||
| 61 | R902421947 | SHIPPING PROTECTION | 1 | |
| 62 | R902602013 | SEAL SCREW | 1 | |
| 63 | R902421950 | SHIPPING PROTECTION | 1 | |
| 71 | R902573673 | FLANGE COVER | 1 |
Parameters from the type code
| Item | Meaning | Code |
|---|---|---|
| Axial piston unit | Swashplate design, variable, nominal pressure 350 bar, maximum pressure 400 bar | A4VS |
| Operating mode | Pump, open circuit | O |
| Size (NG) | 125 | 125 |
| Control device Information on controller selection | Pressure controller | DR |
| Series | Series 3, index 0 | 30 |
| Directions of rotation | Viewed on drive shaft Clockwise | R |
| Drive shafts | Parallel keyed shaft DIN 6885 | P |
| Mounting flange | Based on ISO 3019-2 (metric) 4-hole | B |
| Working port | SAE flange ports, B and S with 90° lateral 2nd pressure port B metric fastening thread offset opposite B, plugged with flange plate on delivery | 25 |