PPC Variable Displacement Hydraulic Motors are adjustable displacement ball piston motors built to the highest standards of accuracy. Designed for applications requiring rugged durability, smooth low speed running, highest efficiency and minimum leakage, they permit precision control of torque and speed It provides a versatile power package of high efficiency. Adjustments of the motor displacement can be made to exactly match torque and speed characteristics as required by specific conditions.

The motor employs 20 ball pistons uniformly distributed and ported, reacting with precision anti friction bearing displacement rings to provide a virtually pulseless, vibration-free output rotation at any speed. Output torque is constant throughout entire speed range, with constant input pressure. Reversibility with identical dynamic characteristics in either direction is provided by precisely identical flow paths within the motor.

Balanced forces within the motor minimize frictional losses permitting slow rotation under servo control, as well as providing a small start-run pressure. The motor may be operated continuously, reversed or stalled while under full load conditions. It may be mounted in any position. The motor can be run with or without case filled. Empty case is recommended for speeds above 2000 rpm. Operating temperature is limited by hydraulic fluid capabilities. 10 micron filtration ahead of the motor is recommended. Filtration to this degree will prolong motor life and efficiency.

Motor mountings: Flange is standard. Consult factory for other mountings.
Manual control of motor displacement is standard; Hydraulic remote control is available.