printing machine clutch CKA Series backstop is a type sprag freewheel supported by double bearings.overrunning speeds between printing machine clutch ... and often used for package machine, printing machine, food machine, medical machine, bucket, spinning and conveyor, weaving machine etc.. TnN.m nrmin ... -251501500703225320.6315WKA6WKA 70×32-281801500703028320.60 printing machine clutch CKA series