Unit · AXIAL-PISTON PUMP
A4VG56HWDT1/32R-NAC02K045E-SR902211789
Axial piston pump Bosch Rexroth series A4VG, type code A4VG56HWDT1/32R-NAC02K045E-S, material number R902211789. Nominal size: NG 56. Axial piston unit: swashplate design, variable, nominal pressure 400 bar, maximum pressure 450 bar (A4V). Operating mode: pump, closed circuit (G). Control device: proportional control hydraulic mechanical servo (HW). Pressure cut-off: pressure cut-off (D). Stroking chamber pressure port: stroking chamber pressure port X X (T). DA control valve: without DA control valve (1). Direction of rotation: viewed on drive shaft clockwise (R). Sealing material: NBR (nitrile rubber), shaft seal made of FKM (fluorocarbon rubber) (N). Drive shaft: splined shaft DIN 5480 for combination pump – 1st pump (A). Mounting flange: SAE J744 2-hole (C). Working port (port plate): SAE working port A and B, top and bottom suction port S bottom (02). Boost pump: without integrated boost pump with through drive (K). Through drive: flange SAE J744 Hub for splined shaft, 101-2 (B) 1 in 15T 16/32DP (04). High-pressure relief valve Setting range ∆pHD: high-pressure relief valve 250 … 420 bar direct operated, fixed setting with bypass (5).
- Number
- R902211789
- Type code
- A4VG56HWDT1/32R-NAC02K045E-S
- Group
- A4VG 56
- Edition
- 12/2019
This parts list has no drawing.
| Pos. | Number | Name | Qty | Add to inquiry |
|---|---|---|---|---|
| 1 | R902199696 | ROTARY GROUP Assembly parts list →L | 1 | |
| 2 | R902010810 | CONTROL Assembly parts list →L | 1 | |
| 3 | R902211427 | CONNECTION PLATE Assembly parts list →L | 1 | |
| 4 | R909606675 | BELL HOUSING Assembly parts list →L | 1 | |
| 5 | R902018885 | CONTROL MODULE Assembly parts list →L | 1 | |
| 10 | R902029526 | HOUSING | 1 | |
| 13 | R902132713 | PIVOT PIN | 1 | |
| 14 | R909405732 | POITIONING PIN | 1 | |
| 20 | R909151694 | SCREW PLUGD | 1 | |
| 21 | R909151979 | SCREW PLUGD | 2 | |
| 22 | R909151692 | SCREW PLUGD | 6 | |
| 27 | R909831318 | DOUBLE BREAK-OFF PLUG | 2 | |
| 28 | R909156493 | NOZZLE | 2 | |
| 31 | R913016373 | SLOTTED SPRING PIN | 2 | |
| 32 | R909153364 | SCREW PLUGD | 1 | |
| 39 | R909153861 | SCREW PLUG | 1 | |
| 46 | R909154981 | SETSCREW | 1 | |
| 47 | R909153271 | SEALING NUTD | 1 | |
| 98 | R902095505 | SEAL KIT | 1 |
Parameters from the type code
| Item | Meaning | Code |
|---|---|---|
| Axial piston unit | Swashplate design, variable, nominal pressure 400 bar, maximum pressure 450 bar | A4V |
| Operating mode | Pump, closed circuit | G |
| Size (NG) | 56 | 56 |
| Control device | Proportional control hydraulic mechanical servo | HW |
| Pressure cut-off | Pressure cut-off | D |
| Stroking chamber pressure port | Stroking chamber pressure port X X | T |
| DA control valve | Without DA control valve | 1 |
| Series | Series 3, index 2 | 32 |
| Direction of rotation | Viewed on drive shaft clockwise | R |
| Sealing material | NBR (nitrile rubber), shaft seal made of FKM (fluorocarbon rubber) | N |
| Drive shaft | Splined shaft DIN 5480 for combination pump – 1st pump | A |
| Mounting flange | SAE J744 2-hole | C |
| Working port (port plate) | SAE working port A and B, top and bottom suction port S bottom | 02 |
| Boost pump | Without integrated boost pump with through drive | K |
| Through drive | Flange SAE J744 Hub for splined shaft, 101-2 (B) 1 in 15T 16/32DP | 04 |
| High-pressure relief valve Setting range ∆pHD | High-pressure relief valve 250 … 420 bar direct operated, fixed setting with bypass | 5 |
| Filtration boost circuit/external boost pressure supply | External boost pressure supply (version without integrated boost pump – N00, K...) | E |
| Standard/special version | Special version | -S |