Key Features of Fixed Displacement Hydraulic Piston Motor

• In the motor operating mode, working fluid delivered from hydraulic system through openings in the cover and through a groove in the distributor enters the cylinder block where it sets the pistons in motion.
• The pistons transfer the force to a spherical joint.
• Because the shaft axis and cylinder block axis are at an angle, the force acting on the joint is resolved into an axial and a tangential component.
• The axial load is taken up by bearings while the tangential one develops a torque at the hydraulic motor shaft.
• This shaft torque is directly proportional to the motor displacement [V] and pressure difference [DP], its value is limited by the safety valve.
• The rotational speed [n] is directly proportional to working fluid supply and inversely proportional to the displacement