12 Vehicle engine components, namely, universal joints, double universal joints, constant velocity joints, half shaft assemblies, constant velocity universal joints, drive shafts, joints, gearings, couplings and clutches, drive shafts, bearings and gear wheels; transmission shafts; connecting shafts, viscous couplings; flexible shaft couplings; cardan type and Hooke's type joints; transmissions; steering mechanism joints; wheel bearings; gears and gearboxes; differentials; locking differentials; cross pieces, bearing cups, bearings, yokes, rubber boots, plastic boots, outer races, cages, balls and connecting shafts; axles and steering axles; ball guide cones, drive shaft couplers; chassis systems, side members and cross members; vehicle transmission components, namely, clutches, gears, transmission shafts, transmission belts, flywheels, pressure plates, clutch disks, connecting shafts and constant velocity shafts, vehicle hydraulic and pump parts, vehicle shock absorber rods and struts, vehicle compressor parts, vehicle steering components; aerospace engine components, namely, universal joints, double universal joints, constant velocity joints, half shaft assemblies, constant velocity universal joints, drive shafts, joints, gearings, couplings and clutches, drive shafts, bearings and gear wheels; transmission shafts; connecting shafts, viscous couplings; flexible shaft couplings; cardan type and Hooke's type joints; transmissions; steering mechanism joints; wheel bearings; gears and gearboxes; differentials; locking differentials; cross pieces, bearing cups, bearings, yokes, rubber boots, plastic boots, outer races, cages, balls and connecting shafts; axles and steering axles; ball guide cones, drive shaft couplers; chassis systems, side members and cross members, propeller shafts; aerospace landing gear, aerospace mechanical actuators; nautical engine components, namely, universal joints, double universal joints, constant velocity joints, half shaft assemblies, constant velocity universal joints, drive shafts, joints, gearings, couplings and clutches, drive shafts, bearings and gear wheels; transmission shafts; connecting shafts, viscous couplings; flexible shaft couplings; cardan type and Hooke's type joints; transmissions; steering mechanism joints; wheel bearings; gears and gearboxes; differentials; locking differentials; cross pieces, bearing cups, bearings, yokes, rubber boots, plastic boots, outer races, cages, balls and connecting shafts; axles and steering axles; ball guide cones, drive shaft couplers; chassis systems, side members and cross members, propeller shafts; nautical transmission components, namely, clutches, gears, transmission shafts, transmission belts, flywheels, pressure plates, clutch disks, connecting shafts, propeller shafts, constant velocity shafts, turbine blades nautical hydraulic and pump parts, nautical compressor parts, nautical steering components