Shrink discs

Shrink discs are used together with gearboxes, disc couplings, flange couplings, sleeve couplings, press flywheels, clutches and composting rotor & wind turbines.

Shrink discs are selected to transmit very high torques without the use of keys, or the occurrence of fretting corrosion or backlash. Brevini selects only those shrink dics that provide high reliability & ease of maintenance.

A shrink disc works by ‘shrinking’ or squeezing a portion of the mounted component down onto the shaft. Fit clearance between the hub outside diameter and shrink disc are controlled to ensure the hub contracts within its elastic limits.

Shrink discs are commonly tightened with standard set screws. Hydraulic versions are also available for quicker installation & removal.