Shrink discs are removable machine elements used for to connect a hollow shaft with a solid shaft. The assembly is hydraulically pre-loaded under high pressure using a hand pump.
The self-locking tapered joint being secured with a retaining ring. Assembly and removal of these takes only a fraction of the time usually taken for bolt type Shrink Discs. The main function of a shrink disc is the safe connection of a shaft with a hub by means of friction.
- Two Part Shrink Disc – The stepped taper outer ring is pulled onto the stepped taper inner ring by tightening the clamping screws. A radial clamping force is generated by the taper surfaces, The radial clamping force presses the hollow shaft onto the shaft and creates a frictional bonded connection at the contact surfaces between the shaft and the hollow shaft. Thereby, torque / axial force can be transmitted between the shaft and the hollow shaft.
- Three Part Shrink Disc – The front nut and rear nut are pulled together over the inner ring by tightening the clamping screws. A radial clamping force is generated by the taper surfaces. The radial clamping force presses the hollow shaft onto the shaft and creates a frictional connection at the contact surfaces between the shaft and the hollow shaft. Thereby, torque / axial force can be transmitted between the shaft and the hollow shaft
