The Bosch Rexroth R992000539 is a genuine A10VO Series 31 axial piston variable pump, specifically configured as an A10VO45DR/31R-VSC12N00. This high-performance hydraulic pump features a nominal displacement of 45 cm³/rev and is equipped with a DR (pressure compensator) control device. Designed for robust applications, it operates at a nominal pressure of 280 bar and a maximum pressure of 350 bar. It has a clockwise rotation, a splined shaft (SAE J744 25-1), a 2-hole mounting flange (SAE J744 101-2), and FKM seals for durability. Ideal for mobile and industrial hydraulic systems requiring reliable variable flow.