6
Balls of steel and of brass; castings, semi-worked; rollers of metal and metals (included in class 6) for roller bearings; bungee nuts and circlips, bushings, grease nipples, gear chains of meal for gear pinions and roller chains; guide rails (slide rails)
7
Machines for metal working and machine tools; machine coupling and transmission components for machines; Ball and roller bearings; ball joints; axle bearings; needle bearings; ball bearings; bearings for transmission shafts; shaft supports; hydrostatic bearings, and parts and fittings therefor (included in class 7); seals for bearings; bearing housings; machine parts, in particular coupling and transmission components; shafts and bearings for machines; pinions (machine parts); ball bushings (included in class 7); ball screws and roller spindles (included in class 7); joint heads (machine parts); mechanical metalworking tools; mechanical tools and parts and fittings therefor (included in class 7); machine tools; transmission chains (except for land vehicles); transmissions, machine transmissions; stop blocks, transmissions and transmission components for machines; linear guides; shaft guides; ball recirculating guides; roller recirculating guides; castor guides; ball screws
12
Vehicles and parts therefor, included in class 12; apparatus for locomotion by land, air or water; bearings, parts and fittings for vehicle bearings