Hydraulic Motor Spool Valve Motor BM4 is a large spool valve, high pressure motor, with radial ball-bearings design, and can bear greater load. Characteristic features： It adapts the gerolor design, which has a higher distribution accuracy and mechanical efficiency. The motor can be used in high pressure and high torque. Double taper roller bearings permit high radial loads. Credible design for shaft seal , which can bear high pressure. A variety of connection types of flange, output shaft and oil port. Main Specification Displacement(ml/r) 245 310 390 500 630 800 Flow(LPM) Cont. 80 80 80 80 80 80 Int. 100 100 100 100 100 100 Speed(RPM) Cont. 320 250 200 156 120 106 Int. 390 300 240 200 150 120 Pressure(MPa) Cont. 14 14 14 14 12.5 10 Int. 15 15 15 15 13 12 Torque(N*m) Cont. 435 556 698 870 997 1024 Int. 502 664 798 1058 1178 1380 Note:  1. Intermittent means the entrance of maximum pressure; continuous working pressure means the differential pressure. 2. Motor should not work under the highest pressure and the maximum speed. 3. The running time should not exceed 10% under intermittent working conditions. 4. The Maximum working temperature is 80℃. 5. The maximum allowable back pressure is 10Mpa, but the recommended back pressure should not exceed 5MP, a leaking pipes is needed when exceeding. 6. One hour running time under 40% of maximum working pressure is recommended before full capacity working. 7. Recommending N68 anti-wear hydraulic oil, viscosity 37-73cSt, cleanliness ISO 18/13.