Shrink discs

The 2-part shrink disc (torque-controlled) is an external clamping element consisting of a pressure ring and a sleeve. By tightening the clamping screw with the specified screw tightening torque, the pressure ring is pulled axially onto the sleeve. By using conical surfaces, the inner diameter of the sleeve is reduced so that a radial clamping force is applied to the hollow shaft. The clamping force applied by the shrink disc connection creates a frictional connection at the contact surface between the shaft and hub.

The 3-part shrink discs are external clamping elements and consist of a pressure ring with thread, a pressure ring with through holes and a slotted inner ring. By tightening the clamping screws with the specified tightening torque, the two pressure rings of the 3-part shrink disc move towards each other on the slotted inner ring. The use of conical surfaces reduces the inner diameter of the inner ring, which applies a radial clamping force to the hollow shaft. The applied clamping force of the shrink disc connection creates a frictional connection at the contact surfaces between the shaft and hub.