TB Wood's J3B Bushing — 3" bore. As a TB Wood's sleeve bearing, the J3B provides a wear-resistant interface for rotating shafts within power transmission assemblies. The 3" bore specifies the internal diameter of the sleeve, guiding fit with compatible shafts and housings in TB Wood's J3B-series configurations. Bushings in this family are chosen to minimize friction and wear in rotating machinery where a replaceable wear surface is desirable.
