Cages for ball-bearings, roller bearings, cylindrical roller bearings, needle bearings; grease rings (parts of machines); lubricators (parts of machines); sleeves (parts of machines) for assembling and disassembling ball-bearings, roller bearings, cylindrical roller bearings, needle bearings; anti-friction bearings, in particular with ball-bearings, roller bearings, cylindrical roller bearings, needle bearings; clutch release bearings, in particular clutch release bearings with roller bearings, cylindrical roller bearings, needle bearings; ball rings for bearings; cams for machines and machine tools; pulleys for machines and machine tools; transmission shafts (other than for land vehicles), belts for motors and engines; guides for machines; bearings (machine or engine parts); bearings for transmission shafts; driving gear mechanisms (other than for land vehicles); anti-friction ball bearings; balls (rolling elements); gearbox beari ings; hybrid ball-bearings (balls made of ceramic materials, universal bearings and associations of universal bearings), ball-bearings, roller bearings, cylindrical roller bearings, needle bearings