Benefit

Saving

Relaxed machining tolerances of mating components

Reduction or even elimination of secondary ‘finishing’ operations reduces machining costs, production time and opportunity for quality rejects.

Compensation of angular shaft alignment of rotating shafts

Increases appliance / motor life-time and reliability therefore reducing risk of warranty failures

Allows and controls radial movement of ‘floating’ bearings inside electric motor housings

Reduces radial stresses being transmitted from the inner to the outer race of the bearing during thermal expansion of the shaft. This reduction of stresses in the bearing increases the life-time of the bearing and therefore the motor

Reduction of radial forces exerted on outer race of bearing

Reduction of radial loads on outer race of bearing reduces the stress exerted on the rolling elements of the bearing and therefore increases the bearing life-time.

Allows for stiffening of assembly

The ability of the tolerance ring to stiffen any moving assembly allows the design engineer to reduce to a minimum any vibration. This reduction in vibration reduces in service noise levels and also increases product life-time

In line torque overload protection

Protect motors from burnout conditions in the event of a blockage. Also protects equipment users from potentially harmful injuries.

Compensation of thermal expansion rates in dissimilar materials

The use of high expansion housing materials linked to strong drive or bearing materials means that in high temperature range environments the design engineer risks assembly failure. The tolerance rings spring characteristics compensate for this expansion differential and therefore reduces potential assembly failures.