Bearing housings for machines; Bearing inserts for machines; Bearing brackets for machines; Bearing cages being parts of machines; Machine parts, namely, bearing housings; Machine parts, namely, bearing inserts; 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; Engine bearings; Machine parts, namely, bearings; Roller bearings for machines; Bearings, as parts of machines; Sliding bearings for machines; Bushings for use as parts of machines; Bushing assembly for conveyor pulleys; Machine parts, namely, bearings and bushings; Machine parts, namely, metal grounding bushings