Shrink discs, 2-piece
(path-controlled)

Two-piece shrink discs (displacement-controlled) are external clamping elements consisting of a pressure ring and a sleeve. Tightening the clamping screws to a specified torque draws the pressure ring axially onto the sleeve. The use of conical surfaces reduces the inner diameter of the sleeve, thereby exerting a radial clamping force on the hollow shaft. The clamping force applied by the shrink disc connection creates a friction-fit connection at the contact surfaces between the shaft and hub. Two-piece shrink discs have a smaller cone angle compared to three-piece shrink discs, which is responsible for the self-locking mechanism. Due to the small cone angle, the sleeve requires additional release threads. These release threads allow the pressure ring and sleeve to be easily separated during disassembly. Two-piece shrink discs (displacement-controlled) have a defined insertion path, allowing for installation without a torque wrench. The clamping screws of the two-part shrink disc (position-controlled) are tightened evenly in a sequential manner until the end face of the sleeve is flush with the end face of the pressure ring. The torque values ​​specified in the catalog can be applied once this assembly condition is reached.

Two-part shrink discs (position-controlled) are available in three different versions. The TAS 3173 series is ideal for very low torques and small installation spaces. For high to very high transmissible torques, you can choose between the TAS 3381 and TAS 3393. Depending on the available installation space and the required torque, we will work with you to find the right solution. We can also offer solutions for special corrosion protection or low-temperature environments.

Two-piece shrink discs (position-controlled) can transmit 20%-30% higher torques. Combined with their simplified handling, these two-piece shrink discs (position-controlled) have proven their worth in practice, particularly in the mining and conveyor technology sectors. However, these shrink discs are also commonly used in all friction-fit shaft-hub connections, for example, in drive technology, the oil and gas industry, the timber industry, and hollow shaft gearboxes.