The 641-007 1 inch heavy retaining ring is a carbon steel clip used to secure the drive pulleys of the 4 and 6 inch wet sander drive pulleys on the shaft.
342-023 6 INCH INDUSTRIAL BELT SANDERS COUPLING GUARD
342-023 6 inch industrial belt sanders coupling guard cover's the 148-001 coupling assembly on the 6 x 48 inch and 6 x 60 inch Kalamazoo Industries dry belt sanders.
697-024 industrial machine spring is used to keep the sanding belt tension on the several of the Kalamazoo sanders and the abrasive blade centered on the 14 inch abrasive saws.