7 Bearing housings for machines; Bearing inserts for machines; Bearings, as parts of machines; Anti-friction bearings for machines; Ball bearings for use in machines, namely, bearings, chain, and oil seals; Ball rings for bearings for machines, namely, bearings, chain, and oil seals; Engine bearings; Machine parts, namely, bearing housings; Machine parts, namely, bearing inserts; Machine parts, namely, bearings; Machine parts, namely, bearings and bushings; Machine parts, namely, roll mill bearings; Machine parts, namely, roller bearings; 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 machines, lifting machines, agricultural machinery, construction equipment machines and hydraulic turbines; Shaft bearings for vacuum pumps