This is a genuine Simplicity replacement part used in compatible mowers and tractors. The relief bearing attaches to the wheel and is made of metal. If this part wears down it will need to be replaced and may require a set of pliers and a hammer during the installation. It is available as an individual replacement even though two may be needed.
This is an authentic Simplicity replacement part, sourced from the original manufacturer for use with outdoor power equipment. The bearing is commonly used to reduce friction between a rotating shaft and a fixed part assembly. This item is available as an individual replacement part.