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AL A10V O 28LA9D /53R-VRC12K68 (R902557331)
Axial piston variable pump A10VO, swashplate design, open circuit, nominal pressure 250 bar, maximum pressure 315 bar. Series 53. Geometric displacement 28 cm3. Power controller with pressure cut-of beginning of control from 141 to 230 bar. Seal: FKM (fluoroelastomer). Splined shaft ISO 3019-1, for higher torque. Mounting flange ISO 3019-1 (SAE) 2-hole. SAE flange ports, fastening thread metric, laterally opposite, for through drive. Through drive flange ISO 3019-1 101-2 (B) , hub for splined shaft 7/8 in 13T16/32DP.
The above diagrams belong to Rexroth www.boschrexroth.com