Alternating current servo motors; Bearing brackets for machines; Bearings for transmission shafts, being parts of machines; Bearings, as parts of machines; Drives for motors; Electric motors for machines with a digital servo drive controller; Engraving machines; Machine coupling and transmission components, except for land vehicles; Machine tool holders; Metalworking machine tools; Power tool accessories, namely, cutting guides; Self-lubricating mechanical friction parts, especially of compos...