7 Anti-friction bearings for machines; Axles for machines; Ball transfer units; Bearing brackets for machines; Bearings for transmission shafts, being parts of machines; Bearings, as parts of machines; Machine parts, namely, bearings and bushings; Machine parts, namely, roller bearings [ ; 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 ]