Unit · AXIAL-PISTON PUMP
AA4VG56DA1DM4/32R-NSC52FXX5FH-SR902055044
Axial piston pump Bosch Rexroth series A4VG, type code AA4VG56DA1DM4/32R-NSC52FXX5FH-S, material number R902055044. Nominal size: NG 56. Axial piston unit: swashplate design, variable, nominal pressure 5800 psi (400 bar), maximum pressure 6500 psi (A4V). Operating mode: pump, closed circuit (G). Control device: automatic control, speed related U = 12 V (DA1). Pressure cut-off: pressure cut-off (D). Mechanical stroke limiter: mechanical stroke limiter, externally adjustable (M). 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 for single pump ANSI B92.1a (S). Mounting flange: SAE J744 2-hole (C). Working port (port plate): SAE working port A and B, top and bottom suction port S bottom (52). Boost pump: integrated boost pump with and without through drive (F). High-pressure relief valve Setting range ∆pHD: high-pressure relief valve 3600 to 6100 psi direct operated, fixed setting (250 to 420 bar) with bypass (5). Filtration boost circuit/external boost pressure supply: attachment filter with cold start valve (F). Standard/special version: special version (-S).
- Number
- R902055044
- Type code
- AA4VG56DA1DM4/32R-NSC52FXX5FH-S
- Group
- A4VG 56
- Edition
- 12/2019
This parts list has no drawing.
| Pos. | Number | Name | Qty | Add to inquiry |
|---|---|---|---|---|
| 1 | — | ROTARY GROUP Assembly parts list →L | 1 | |
| 2 | — | CONTROL Assembly parts list →L | 1 | |
| 3 | R909609352 | CONNECTION PLATE Assembly parts list →L | 1 | |
| 4 | — | INTERNAL GEAR PUMP Assembly parts list →L | 1 | |
| 5 | R902053171 | INCHING VALVE Assembly parts list →L | 1 | |
| 6 | R902033737 | FILTER Assembly parts list →L | 1 | |
| 7 | R909414719 | CONTROL CARTRIDGE Assembly parts list →L | 1 | |
| 10 | R902029575 | HOUSING | 1 | |
| 13 | R902132713 | PIVOT PIN | 1 | |
| 20 | R909154480 | SCREW PLUGD | 1 | |
| 21 | R909153371 | SCREW PLUGD | 2 | |
| 22 | R909154478 | SCREW PLUGD | 4 | |
| 27 | — | DOUBLE BREAK-OFF PLUG | 2 | |
| 28 | R909600840 | THROTTLE VALVE Assembly parts list →L | 2 | |
| 31 | R913016373 | SLOTTED SPRING PIN | 2 | |
| 32 | R909153364 | SCREW PLUGD | 1 | |
| 33 | R909153338 | SCREW PLUGD | 1 | |
| 37 | R909087912 | SCREW PLUG | 1 | |
| 46 | R909435856 | ECCENTRIC SCREW | 1 | |
| 47 | R909153271 | SEALING NUTD | 1 | |
| 49 | R909156496 | NOZZLE | 1 | |
| 54 | R909156492 | NOZZLE | 1 | |
| 85 | R909438806 | CONTROL ELEMENT Assembly parts list →L | 1 |
Parameters from the type code
| Item | Meaning | Code |
|---|---|---|
| Axial piston unit | Swashplate design, variable, nominal pressure 5800 psi (400 bar), maximum pressure 6500 psi | A4V |
| Operating mode | Pump, closed circuit | G |
| Size (NG) | 56 | 56 |
| Control device | Automatic control, speed related U = 12 V | DA1 |
| Pressure cut-off | Pressure cut-off | D |
| Mechanical stroke limiter | Mechanical stroke limiter, externally adjustable | M |
| 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 for single pump ANSI B92.1a | S |
| Mounting flange | SAE J744 2-hole | C |
| Working port (port plate) | SAE working port A and B, top and bottom suction port S bottom | 52 |
| Boost pump | Integrated boost pump with and without through drive | F |
| High-pressure relief valve Setting range ∆pHD | High-pressure relief valve 3600 to 6100 psi direct operated, fixed setting (250 to 420 bar) with bypass | 5 |
| Filtration boost circuit/external boost pressure supply | Attachment filter with cold start valve | F |
| Standard/special version | Special version | -S |