Anti-friction bearings for machines; Ball bearings for use in machines, namely, vacuum pumps; Ball rings for bearings for machines, namely, vacuum pumps; Bearing brackets for machines; Bearing housings for machines; Bearings for transmission shafts, being parts of machines; Machine parts, namely, bearing housings; Machine parts, namely, bearing inserts; Machine parts, namely, bearings and bushings; Machine parts, namely, roller bearings; Roller bearings for machines; Self-lubricating mechanic...