Parts of conveyors, in particular belt conveyors; brake linings (other than for vehicles), pressure regulators, pressure valves and pressure reducers (parts of machines); printing rollers for machines, filters for engines and machines, sparking plugs and glow plugs for engines; conveyor belts, ball-bearings, bearings (parts of machines), journals (parts of machines), piston segments, grease rings, grinding disks and grindstones (parts of machines), drilling heads, drilling bits, adhesive bands for pulleys, belts for motors and engines, anti-friction bearings for machines, elevator belts and elevator chains, belts for machines, springs, bearings, in particular ball-bearings, couplings other than for land vehicles; feeders (parts of machines), brake segments other than for vehicles, slide rests and pulleys (parts of machines), pulleys and belts for machines, grease boxes and chucks (parts of machines); self-oiling bearings, shock absorber plungers (parts of machines), control cables for machines and engines, rollers (parts of machines); dynamo belts, belts for motors, driving chains (other than for land vehicles); adhesive bands for pulleys; conveyor chains and conveyor belts