AA10VO60DR/52R-VSD61N00

The AA10VO60DR/52R-VSD61N00 axial piston unit belongs to the A10VSO Variable Pumps series produced by Bosch Rexroth for closed-loop hydraulic automation circuits. Designed to adjust flow by varying piston stroke, it helps maintain system pressure while the integrated pressure controller (DR) limits outlet force without external valves. A geometric displacement of 60 cm³ per revolution defines the volume delivered each shaft turn, and a maximum pressure rating of 315 bar marks the highest permitted load during transient events. Continuous operation is governed by a nominal pressure of 250 bar to control component fatigue. The shaft may reach a nominal speed of 2600 rpm, matching common diesel or electric prime movers, and the rotation is clockwise to match standard right-hand engine layouts. Installation is simplified by an ISO 3019-1 four-hole mounting flange, while an FKM seal protects against hot or chemically aggressive hydraulic oils. The housing weighs 22 kg, so one technician can position and secure the unit during machine build.

At maximum displacement the pump delivers 90 l/min when the drive turns at 1500 rpm, supplying moderate-sized cylinders; increasing speed raises flow to 156 l/min for circuits with higher throughput. Producing this output consumes 37 kW at 1500 rpm, and 65 kW is required when it runs at the full nominal flow, so motor sizing must account for both points. Shaft torque peaks at 238 Nm under the rated load, which guides coupling selection and shaft-key dimensions; this figure also affects the sizing of hydrostatic bearings in the drive train. Because the configuration is supplied without a through drive, no secondary pump can be attached, simplifying the installation but removing the option for auxiliary power take-off. These operating figures demonstrate how the unit balances variable flow with controlled power draw, making it suitable for presses, mobile machinery, and other hydraulic equipment that demand pressure-responsive supply within constrained spaces.