One way clutch can overrun freely in one direction of rotation. Reverse rotation is instantaneously prevented by the automatic engagement of the clutch (another name is back stop, overrunning clutch or cam clutch) . The full complement of cams made special alloy steel provides greater torque capacity than the other roller clutch. The dimpling of cam clutch is distributed around the inner raceway, not concentrated. Therefore, this offer long life performance, high precision without any backlash and silent operation. Mi-k series are used in mining machinery and material handling sys. Such as roll feeder & automatic transfer for cutting, press. . . . etc. with indexing application. Mg-k series are used in general industrial, precisionMachinery. (printer, textile machinery, calender, fan, quilting machine. . . ) with overrunning application.