Unit · AXIAL-PISTON PUMP

A A4VSO 250 HS4 /30R-PZB25UB4R902485531

Axial piston pump Bosch Rexroth series A4VSO, type code AA4VSO250HS4/30R-PZB25UB4, material number R902485531. Nominal size: NG 250. Axial piston unit: swashplate design, variable, nominal pressure 350 bar, maximum pressure 400 bar (A4VS). Operating mode: pump, open circuit (O). Directions of rotation: viewed on drive shaft Clockwise (R). Drive shafts: splined shaft DIN 5480 (Z). Mounting flange: based on ISO 3019-2 (metric) 4-hole (B). Working port: SAE flange ports, B and S with 90° lateral 2nd pressure port B metric fastening thread offset opposite B, plugged with flange plate on delivery (25).

Number
R902485531
Type code
A A4VSO 250 HS4 /30R-PZB25UB4
Group
A4VSO 250
Edition
07/2020
A  A4VSO 250 HS4   /30R-PZB25UB4 — Drawing
Pos.NumberNameQtyAdd to inquiry
R902481680BASE UNIT Assembly parts list →L1
R910984244ADJUSTING PIECE Assembly parts list →L1
R902422923INDUCTIVE POS.TRANSDUCER Assembly parts list →L1
R910984173CONNECTION PLATE Assembly parts list →L1
R902437418VALVE Assembly parts list →L1
R910785105SOCKET HEAD CAP SCREW4
61R902805709SHIPPING PROTECTION1
R902602206SEAL SCREW1
63R902564145SHIPPING PROTECTION1
71R902573673FLANGE COVER1
81R902602011SEAL SCREW1
82R902602011SEAL SCREW1

Parameters from the type code

ItemMeaningCode
Axial piston unitSwashplate design, variable, nominal pressure 350 bar, maximum pressure 400 barA4VS
Operating modePump, open circuitO
Size (NG)250250
SeriesSeries 3, index 030
Directions of rotationViewed on drive shaft ClockwiseR
Drive shaftsSplined shaft DIN 5480Z
Mounting flangeBased on ISO 3019-2 (metric) 4-holeB
Working portSAE flange ports, B and S with 90° lateral 2nd pressure port B metric fastening thread offset opposite B, plugged with flange plate on delivery25