AZ-P-F-22-028-RRR12MB

The AZ-P-F-22-028-RRR12MB gear pump belongs to the AZPF External High Performance Gear Pumps series from Bosch Rexroth and serves as a fixed-displacement source of flow in hydraulic automation circuits. It delivers 28 cm³ of oil per revolution, providing a predictable volume for actuators downstream. Clockwise rotation is specified, which matches standard right-hand drive shafts and avoids cross-porting errors. Reinforced bearings support higher radial loads from belt or gear drives and help maintain alignment at sustained pressures. The unit withstands 170 bar continuously, so it can remain in closed-loop systems without derating, while a 200 bar intermittent limit permits brief load spikes during machine cycles. Pressure peaks up to 240 bar are tolerated for short durations, protecting the housing during shock events. A drive torque capacity of 110 Nm on shaft type R defines the maximum input that can be applied without damaging the gear set. The 2-bolt 82.55 mm SAE 82-2 A flange simplifies mounting to common pump pads and keeps alignment precise.

For dynamic duty the pump runs safely up to 3000 rpm at port P2, allowing high flow rates when faster actuator speed is required, yet it can slow to 500 rpm under conditions below 100 bar so low-speed positioning remains stable. This speed range lets one pump serve both rapid travel and fine metering tasks in a single circuit. The pressure and suction ports share 1 1/16-12 UNF-2B threads, enabling direct connection to SAE straight-thread adapters without additional manifolds. NBR sealing material is used throughout, providing compatibility with standard mineral oils and maintaining elasticity over the temperature range typical of mobile equipment. Power is transmitted through an ANSI B92.1 9-tooth 16/32 pitch spline; the profile ensures accurate torque transfer and aligns with common drive shafts. A usable spline length of 21.8 mm offers full tooth engagement to prevent fretting at high load reversals. Corrosion-protected, pinned surface treatment guards the housing against environmental exposure and locks critical components in place during vibration.