Machine parts, namely, roller bearings, ball bearings for use in connection with hoist drum shafts, pumping units, sheave blocks, steel mill equipment, gear pumps, paper-converting machinery, machine tools, textile machinery, power transmission equipment and aircraft equipment, and needle bearings for use in connection with hoist drum shafts, pumping units, sheave blocks, steel mill equipment, gear pumps, paper-converting machinery, machine tools, textile machinery, power transmission equipme...