Ball bearings for use in machines, namely, carrier device, conveyor system or positioning system; Ball rings for bearings for machines, namely, carrier device, conveyor system or positioning system; Ball transfer table units for use in carrier device, conveyor system or positioning system; Ball transfer units for use in carrier device, conveyor system or positioning system; Ball valves being parts of machines; Bearing brackets for machines; Bearings for transmission shafts, being parts of machines; Bearings, as parts of machines; Bushing assembly for conveyor pulleys; Couplings for machines; Linear actuators; Linear motions machines for moving objects; Linear motors; Machine coupling and belting except 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 elements not for land vehicles, namely, ball transfer units; Machine elements not for land vehicles, namely, ball transfer table units; Machine elements not for land vehicles, namely, pneumatic ball transfer units; Machine parts, namely, flexible shaft couplings; Machine parts, namely, bearings and bushings; Machine parts, namely, roller bearings; Machine parts, namely, bearing housings; Machine parts, namely, bearing inserts; Machine parts, namely, bearings; Machine parts, namely, roll mill bearings; Machine parts, namely, couplers and semi-couplers of synthetic material; Machine parts, namely, joints and joint parts for connecting sliding strips, plates and guides; Machine parts, namely, rollers coated with synthetic material; Roller bearings for machines; Shaft bearings for vacuum pumps; Shaft couplings as parts of machines; Shaft couplings for machines; Shaft couplings, not for land vehicles; and Shafts for pumps