563-014 S460 4 x 60 inch belt sander reversible replacement platen. This platen works with S460D, S460W and S460V 4 x 60 inch belt sanders regardless of the units age.
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.