The Brevini 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 discs that provide high reliability and ease of maintenance
Used together with gearboxes, disc couplings, flange couplings, sleeve couplings, press flywheels, clutches and composting rotor and wind turbines, these shrink discs are commonly tightened with standard set screws. They work by 'shrinking' or squeezing a portion of the mounted component down onto the shaft. Fit clearance between the hub outside diameter and shrink discs are controlled to ensure the hub contracts within its elastic limits.