... for Beam Pumping Units application with special high slip (5 to 13%),very high starting torque and very soft mechanical ... durability, quiet operation ,reduced vibration ,advanced construction ,high safety and reliability in service, convenience for application ... No:213T~449T4,Output Range:2~208HP.5,Synchronous Speed:1200RPM(6 Poles 60Hz),1000RPM(6 ... NEMA D motor for oilwell pump with high quality