This is a genuine item that is supplied directly from the original equipment manufacturer for use with Craftsman vacuums. The purpose of a bearing is to allow connected parts to rotate with minimum friction, unfortunately, over time components will wear out and may begin to fail eventually requiring a replacement. It is an identical repla...Read morecement for a missing or a faulty bearing that was installed on a new unit, please make sure to check the diagrams of your model for the correct location and application of this hardware. Keep in mind this high-quality component is made of durable plastic and is sold individually.