Unit · BASE UNIT

GHA4VSO520K/30R-VZH25KB2R902547300

Base unit Bosch Rexroth series A4VSO, type code GHA4VSO520K/30R-VZH25KB2, material number R902547300. Nominal size: NG 520. Hydraulic fluid: high-speed version (H). Axial piston unit: swashplate design, variable, nominal pressure 5100 psi (350 bar), maximum pressure 5800 psi (400 bar) Metric (A4VS). Operating mode: pump, open circuit (O). Directions of rotation: viewed on drive shaft clockwise (R). Sealing material: FKM (fluorocarbon rubber) / HFD operation (V). Drive shaft: splined shaft DIN 5480 (Z). Mounting flange: based on ISO 3019-2 metric 8-hole (H). Working port: standard version fastening thread, port B and S: SAE flange lateral, offset 90°, 2nd pressure port B with flange plate upon delivery metric (25).

Number
R902547300
Type code
GHA4VSO520K/30R-VZH25KB2
Group
A4VSO 520
Edition
06/2020
GHA4VSO520K/30R-VZH25KB2 — Drawing
Pos.NumberNameQtyAdd to inquiry
R902433963ROTARY GROUP Assembly parts list →L1
R910975871PUMP HOUSING1
R902547321CONNECTION PLATE1
R902516002INDICATING DEVICE1
R902519529STUD BOLT1
R902493106SPLINED COUPLING1
R902488544BLANK FLANGE Assembly parts list →L1
R902572930SOCKET HEAD CAP SCREW8
R910942230SCREW PLUG3
R909156649SCREW PLUG3
R909156651SCREW PLUGD3
R910919863O-RINGD1
R913028081AXIAL SEALD1
R910923835R-RINGD2
R909831319DOUBLE BREAK-OFF PLUG1
R910938084DOUBLE BREAK-OFF PLUGD2
R910979838THROTTLE SCREW1
R910978402THROTTLE SCREW1
R910969260THROTTLE SCREW1
R910978403THROTTLE SCREW1
R910979852REFERENCE PLATE1
R910943498O-RING1
R910109606SOCKET HEAD CAP SCREW2
R902650189WASHER2

Parameters from the type code

ItemMeaningCode
Hydraulic fluidHigh-speed versionH
Axial piston unitSwashplate design, variable, nominal pressure 5100 psi (350 bar), maximum pressure 5800 psi (400 bar) MetricA4VS
Operating modePump, open circuitO
Size (NG)520520
SeriesSeries 3, index 030
Directions of rotationViewed on drive shaft clockwiseR
Sealing materialFKM (fluorocarbon rubber) / HFD operationV
Drive shaftSplined shaft DIN 5480Z
Mounting flangeBased on ISO 3019-2 metric 8-holeH
Working portStandard version fastening thread, port B and S: SAE flange lateral, offset 90°, 2nd pressure port B with flange plate upon delivery metric25