Mechanical power transmission refers to products used in systems with moving parts as opposed to systems powered electrically. These products include shaft couplings, chains and sprockets, belts and sheaves, and drive components.
Linear motion is motion that occurs in a straight line. Ball bushings are used on shafts and reduce friction in both axial and linear motions. Ball bushings can be self-aligning and offer good wear resistance and a low coefficient of friction. Pillow block bearings, also known as plummer blocks, are bearings encased in a housing designed to offer support to rotating shafts.