Unit · AXIAL-PISTON PUMP
A4VG90HWD1/31R-NSF02K731ER909441957
Axial piston pump Bosch Rexroth series A4VG, type code A4VG90HWD1/31R-NSF02K731E, material number R909441957. Nominal size: NG 90. 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). 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 for single pump ANSI B92.1a (S). Mounting flange: SAE J744 2+4-hole (F). 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, 152-2/4 (D) W35 2×30×16×9g (73). High-pressure relief valve Setting range ∆pHD: high-pressure relief valve, pilot operated 100 … 420 bar with bypass (1). Filtration boost circuit/external boost pressure supply: external boost pressure supply (version without integrated boost pump – N00, K...) (E).
- Number
- R909441957
- Type code
- A4VG90HWD1/31R-NSF02K731E
- Group
- A4VG 90
- Edition
- 06/2020
This parts list has no drawing.
| Pos. | Number | Name | Qty | Add to inquiry |
|---|---|---|---|---|
| 1 | R909437464 | ROTARY GROUP Assembly parts list →L | 1 | |
| 2 | R909437599 | CONTROL Assembly parts list →L | 1 | |
| 3 | R909437268 | CONNECTION PLATE Assembly parts list →L | 1 | |
| 4 | R909442021 | BELL HOUSING Assembly parts list →L | 1 | |
| 5 | R909447296 | CONTROL MODULE Assembly parts list →L | 1 | |
| 10 | R909435958 | HOUSING | 1 | |
| 12 | R909435995 | HOUSING COVER | 1 | |
| 13 | R909436449 | PIVOT PIN | 1 | |
| 14 | R909405732 | POITIONING PIN | 1 | |
| 15 | R902132712 | PIVOT PIN | 1 | |
| 20 | R909153891 | SCREW PLUGD | 1 | |
| 21 | R909153815 | SCREW PLUGD | 2 | |
| 22 | R909153816 | SCREW PLUGD | 3 | |
| 24 | R909083228 | SCREW PLUG | 1 | |
| 25 | R909086731 | O-RINGD | 1 | |
| 26 | R909153572 | SCREW PLUG | 1 | |
| 28 | R909426700 | NOZZLE | 2 | |
| 29 | R909086547 | O-RINGD | 1 | |
| 30 | R909157989 | QUAD RINGD | 1 | |
| 31 | R913016373 | SLOTTED SPRING PIN | 2 | |
| 32 | R909151692 | SCREW PLUGD | 2 | |
| 33 | R909151694 | SCREW PLUGD | 3 | |
| 34 | R909083034 | SOCKET HEAD CAP SCREW | 8 | |
| 35 | R909153364 | SCREW PLUGD | 2 | |
| 39 | R909153862 | SCREW PLUGD | 1 | |
| 46 | R909154982 | SETSCREW | 1 | |
| 47 | R909087405 | SEALING NUTD | 1 | |
| 49 | R909426706 | NOZZLE | 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) | 90 | 90 |
| Control device | Proportional control hydraulic mechanical servo | HW |
| Pressure cut-off | Pressure cut-off | D |
| 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 for single pump ANSI B92.1a | S |
| Mounting flange | SAE J744 2+4-hole | F |
| 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, 152-2/4 (D) W35 2×30×16×9g | 73 |
| High-pressure relief valve Setting range ∆pHD | High-pressure relief valve, pilot operated 100 … 420 bar with bypass | 1 |
| Filtration boost circuit/external boost pressure supply | External boost pressure supply (version without integrated boost pump – N00, K...) | E |