AZPF-12-004RQR12PB

The AZPF-12-004RQR12PB gear pump is manufactured by Bosch Rexroth and belongs to the AZPF External High Performance Gear Pumps series for hydraulic automation circuits that require compact, fixed-displacement flow. A displacement of 4.0 cm³ per revolution defines the volume delivered each shaft turn, establishing predictable pump output. The 82.55 mm mounting flange that follows the SAE J744 82-2 (A) standard aligns the housing with common motor adapters. A maximum drive shaft torque of 55 Nm permits the unit to accept moderate mechanical load without slip, while a maximum intermittent pressure of 260 bar allows the pump to handle short-term pressure spikes typical in actuation cycles. The maximum speed limit of 4000 rpm sets the upper operating boundary so designers can match motor speed to flow requirements without overspeeding the gears.

The pressure port is tapped 9/16-18 UNF-2B so standard hydraulic fittings can be attached to the outlet line without adapters. Clockwise rotation when viewed on the shaft provides correct flow direction for right-hand pump arrangements. FKM sealing (type code .PB) resists mineral oil and elevated temperatures, maintaining leak-free operation over time. A 15.875 mm shaft diameter fits common couplings, and a 4 × 20 mm key to DIN 6885 secures torsional transfer between the motor and gear set. The suction port uses the same 9/16-18 UNF-2B thread as the pressure port, simplifying hose inventory on the machine. Overall weight of 3.3 kg keeps the pump light enough for bracket mounting while still providing the structural mass needed to withstand hydraulic loads.