... be alternative for Ringfeder, Sati,Chiaravalli, Tollok etc Our Power Locks are interchangeable to: Ringfeder, Tollok, Chiaravalli, ... Good exchangeability; 3. Heavy load born by joint with Power Lock; 4. Long lifetime and high efficient transmitting; ... breakdown. They are also called Shaft Locking Assembly, Locking Elements, Keyless Shaft Locking, Locking Devices, Power Lock , Cone Clamping Element etc. ...