Bearings for transmission shafts, being parts of machines; Belts for transmissions other than for land vehicles; Bushing assembly for conveyor pulleys; Chains for chain saws; Chains for conveyors; Electric pulley blocks; Engine timing components, namely, cam sprockets and chains; Power transmission belts for machines; Power transmission belts for machines, motors and engines used in industrial applications; Pulleys being parts of machines; Self-lubricating mechanical friction parts, especiall...