AZPF-12-019LRR12MB

The AZPF-12-019LRR12MB pump belongs to the AZPF External High Performance Gear Pumps series and is produced by Bosch Rexroth. Designed to convert mechanical drive power into hydraulic flow for automated circuits, it offers a geometric displacement of 19 cm³ per revolution so each shaft turn delivers a fixed fluid volume. A maximum rotation speed of 3000 rpm permits use on medium-speed prime movers common in industrial machinery. The unit sustains up to 230 bar intermittent pressure, allowing short load peaks without damage. Rotation is fixed in the counter-clockwise direction which must match the motor orientation during installation. NBR sealing material isolates internal passages to suit standard hydraulic oils and keep leakage low. Overall mass is 3.9 kg, meaning the pump can be supported by light mounting brackets. The interface follows the SAE J744 82-2 (A) flange pattern, simplifying attachment to compliant motors and bell housings.

The flange diameter is 82.55 mm, providing a centering face that keeps the housing concentric with the drive source and reduces vibration. A minimum usable shaft length of 21.8 mm guarantees adequate overlap between the pump spline and the coupling hub to prevent fretting. The drive shaft carries 9 involute spline teeth, and each tooth is 2.357 mm thick, so torsional loads are distributed across a defined contact area. For ancillary fixation the body includes M6 threads that are 13 mm deep, allowing positive mounting to frames or bell housings. Fluid entry is through an 11/16-12 UN-2B suction port thread that accepts standard low-pressure adapters, while discharge exits via a 7/8-14 UNF-2B pressure port thread rated for the stated working pressure. These dimensional and connection details let the pump integrate smoothly into hydraulic automation where precise alignment, secure fastening, and leak-free piping are mandatory.