Bearing brackets for machines; Bearings, as parts of machines; Engine bearings; Machine parts, namely, bearing housings; Machine parts, namely, bearings; Machine parts, namely, bearings and bushings; Roller bearings for machines; Self-lubricating mechanical friction parts, especially of composite materials, namely, wear rings, washers, bushings, spherical bearings, bearing pads, sliding blocks and machine transmission gears all for load bearing machines, conveyors, handling trucks and machine...