Unit · AXIAL-PISTON PUMP

A4VG280EP4DP0B0/40MRNE4T21FD4T1AD00-0R902255757

Axial piston pump Bosch Rexroth series A4VG, type code A4VG280EP4DP0B0/40MRNE4T21FD4T1AD00-0, material number R902255757. Nominal size: NG 280. Axial piston unit: swashplate design, variable, nominal pressure 450 bar, maximum pressure 500 bar (A4V). Operating mode: pump, closed circuit (G). Control device: proportional control, electric with manual override and spring return U = 24 V (EP4). Pressure cut-off: pressure cut-off, with bypass Fixed setting, hydraulic, mechanical (D). Connector for solenoids: DEUTSCH molded connector, 2-pin – without suppressor diode (P). Swivel angle sensor: without swivel angle sensor (0). Additional function: mechanical stroke limiter and stroking chamber pressure port X X (B). DA control valve (only for NG110 and 125): without DA control valve (0). Configuration of port and fastening threads: metric ports according to ISO 6149 with O-ring seal, metric fastening thread according to DIN (M). Direction of rotation: viewed on drive shaft clockwise (R). Sealing material: NBR (nitrile rubber), shaft seal in FKM (fluoroelastomer) (N). Mounting flange: SAE J744 165-4 (E4). Drive shaft: splined shaft ANSI B92.1a–1976 2 in 15T 8/16DP (T2). Working port: SAE working port A and B, on left side (45° left) (1).

Number
R902255757
Type code
A4VG280EP4DP0B0/40MRNE4T21FD4T1AD00-0
Group
A4VG 280
Edition
01/2020
A4VG280EP4DP0B0/40MRNE4T21FD4T1AD00-0 — Drawing
Pos.NumberNameQtyAdd to inquiry
R902201357ROTARY GROUP Assembly parts list →L1
R902237888CONTROL Assembly parts list →L1
R902236583PUMP HOUSING Assembly parts list →L1
R902188405INTERNAL GEAR PUMP Assembly parts list →L1
R902139340CONTROL MODULE Assembly parts list →L1
R902199969BEARING FLANGE Assembly parts list →L1

Parameters from the type code

ItemMeaningCode
Axial piston unitSwashplate design, variable, nominal pressure 450 bar, maximum pressure 500 barA4V
Operating modePump, closed circuitG
Size (NG)280280
Control deviceProportional control, electric with manual override and spring return U = 24 VEP4
Pressure cut-offPressure cut-off, with bypass Fixed setting, hydraulic, mechanicalD
Connector for solenoidsDEUTSCH molded connector, 2-pin – without suppressor diodeP
Swivel angle sensorWithout swivel angle sensor0
Additional functionMechanical stroke limiter and stroking chamber pressure port X XB
DA control valve (only for NG110 and 125)Without DA control valve0
Configuration of port and fastening threadsMetric ports according to ISO 6149 with O-ring seal, metric fastening thread according to DINM
Direction of rotationViewed on drive shaft clockwiseR
Sealing materialNBR (nitrile rubber), shaft seal in FKM (fluoroelastomer)N
Mounting flangeSAE J744 165-4E4
Drive shaftSplined shaft ANSI B92.1a–1976 2 in 15T 8/16DPT2
Working portSAE working port A and B, on left side (45° left)1
Boost pump and rotary group configurationStandard rotary group boost pump integrated, standard internal gear pumpF
Through drive152-4 (D) D4 1 3/4 in 13T 8/16DP T1D4T1
High-pressure relief valveHigh-pressure relief valve, direct operated, fixed setting, with low-pressure relief valve, fixed settingA
Filtration boost circuit/external boost pressure supplyFiltration in the boost pump pressure line Ports for external boost circuit filtration (Fe and Fa)D
Pressure sensorWithout pressure sensor0
Other sensorsWithout sensor0
Standard / special versionStandard version0