Anti-friction bearings for machines; Ball bearings for use in machines, namely, bearings; Ball rings for bearings for machines, namely, bearings; Bearing cages being parts of machines; Bearing housings for machines; Engine bearings; Machine parts, namely, bearing housings; Machine parts, namely, bearing inserts; Machine parts, namely, bearings; Machine parts, namely, bearings and bushings; Machine parts, namely, roll mill bearings; Roller bearings for machines; Shaft bearings for vacuum pumps