This ball bearing is assembled by the original manufacturer. It is used in a variety of Powermatic, Jet, and Wilton power tools. Ball bearings serve to protect moving parts from wearing each other down and from damage due to incorrect position/direction. This is a high-wear part and will need regular replacement. This part is sold individually.
This is a genuine replacement part that has been sourced from the original manufacturer to be used with table saws, panel saws, spindle sanders, and air hoists from Powermatic and Jet. The metal ball bearing is used to limit friction between a rotating shaft and a fixed part assembly. The ball bearing is sold as a single replacement part.