MACHINE TOOLS FOR STEEL AND METAL CUTTING BY DRILLING, TURNING, MILLING, GRINDING, REAMING, THREADING AND COUNTERSINKING, AND JOURNALS FOR SUCH MACHINE TOOLS; PUMPS; COMPRESSORS; GEARINGS AND TRANSMISSIONS; COUPLINGS; METAL CUTTING TOOLS FOR CUTTING METAL BY DRILLING, TURNING, MILLING, GRINDING, REAMING, THREADING AND COUNTERSINKING; CLAMPING TOOLS-NAMELY, MANDRELS, ARBORS AND CHUCKS; GEAR WHEELS; FLY WHEELS; SHAFTS; AXLES; RODS AND LINKAGES; FRICTION BEARINGS AND JOURNALS; BALL BEARINGS; ROLLER BEARINGS; LEVERS; AND CRANKSHAFTS