AC variable frequency drives that are used to control small and medium-sized motors in applications such as manufacturing processes, HVAC and pumps; aerators; alternating current servo motors; bearings for transmission shafts, being parts of machines; drives for motors; electric motors for machines; electric motors for machines with a digital servo drive controller; electric motors, and their parts, not for land vehicles; electric motors, not for land vehicles; elevator gears; fan belts for motors and engines; gear boxes other than for land vehicles; gear motors not for land vehicles; gearboxes other than for land vehicles; gears and enclosed drives for industrial machinery; gears for machines; inverter motors not for land vehicles; machine coupling and transmission components, except for land vehicles, and parts therefor; machine couplings and transmission components except for land vehicles; machine couplings and transmissions, except for land vehicles; machine parts, namely, bearings and bushings; machine parts, namely, gear drives; motor and engines except for land vehicles; motors other than for land vehicles; motors, gears and drives for orientating solar panels; motors, namely, alternating current motors not for land vehicles; planetary gear motors; power transmissions and gearing 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; servo motors; servo-drives for motors; servo-motors; shaft couplings as parts of machines; transmission chains, other than for land vehicles; transmission gears for machines; variable frequency drives for motors, other than for land vehicles; variable speed drives for machines; water aeration systems comprising water pumps, air compressors and air blowers; winch motors