Radial Piston Motor with inner piston support and components hydrostatically discharged. RM 1000X; RM 1250X; RM 2500X; RM 3150X; RM 4000X; RM 4500X; RM 5000X in 7-cylinder-design. RM 1600X; RM 1800X; RM 2000X in 5-cylinder-design. Function Pressurised fluid to either ports 1 or 2 fills the respective cylinder chambers, forcing the motor to rotate. As the motor rotates the cylinder moves from the pressure, to the return port of the distributor, returning the fluid to tank. Motor Drive The drive shaft is supported in two large taper roller bearings, capable of accepting high radial and axial loads. Torque is developed by the pistons acting upon the eccentric camshaft through rigid piston pins and hydrostatically balanced bronze con-rods. High efficiencies are achieved due the hydrostatic balance of moving parts; also approximately 50% of the pistons are pressurised at any one time. Distribution Units The eccentric axial distribution system controls the flow to the cylinder bores and is hydrostatically balanced. This results in low leakage and minimal friction losses. The distribution system guarantees automatic compensation of pressure and temperature. It is insensitive to contamination and is shock resistant to temperature, giving a longer live. Furthermore, it offers very good low speed performance, and quiet running at high speed. Leakage The low leakage at the pistons and distribution system helps cooling and lubrication of the motor. This necessary internal leakage is carried away to the tank via one of the drain connections. Flushing At higher continuous power, a case drain flushing is necessary to carry away the heat of rods/crankshaft for a longer life. LSHT Hydraulic Motors RM1000X - 5000X Series Radial Piston Motors 1 www.jbj.co.uk/hydraulic-motors.html #DriveLineHarmony
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