Drive Shaft Bearings, Belt Disc Sander, Belt Disc Sander. 2 pieces in a se. Bearings have an outside diameter of 35mm and a 5/8″ bore “The drive side bearing has an external snap ring, and the ID bearing has an internal snap ring.
Fits Craftsman sanders with the following model numbers: 10322500, 10322540, 11322520, 11322521, 11322500, 11322541, 11322580, 113225830, 113225831, 113225801, 113225900, 113225900, 113225900, 113225900, 113225900, 113225900, 113225900, 113225930, 113225931.
STD315228 is the Craftsman part number that this item replaces.
Craftsman is a brand owned by Sears. Six-by-nine-inch belt-disc sander with drive shaft bearing. 2 pieces in a se. Bearings have an outside diameter of 35mm and a 5/8” bore “The drive side bearing has an external snap ring, and the ID bearing has an internal snap ring. The final two images are for reference only and show the mating shaft and an exploded parts view. The bearings are the only items included in this listing. Bearing on the pulley side: 60434 (or STD315228. Bearing 3509 is the polar opposite of 3509. (or STD315228. This belt will fit Craftsman sanders with the following model numbers: 10322500, 10322540, 11322520, 11322521, 11322500, 11322541, 11322580, 113225830, 113225831, 113225801, 113225900, 113225900, 113225930, 113.225930, 113.225930, 113.225930, 113.225930.
Because my belt sander was so old, I was unable to complete the installation of the bearings. The aluminum drive cylinder was stuck to the drive spindle and couldn’t be moved. Here are a few pointers for anyone who is attempting to install these bearings. circlips are used to hold two parts of the shaft in place: one to hold the drive cylinder in place on the drive spindle, and another to hold the drive spindle in place on the cast iron platten. Afterwards, you’ll find two woodruff keys: a tiny one that prevents the drive cylinder from sliding on the drive spindle, and a slightly larger one that prevents the pulley from slipping on the drive spindle (see illustration). An allen set screw completes the assembly by preventing movement of both the drive cylinder and its rotor on the drive spindle. If you don’t loosen/remove all of these items, you’ll have a difficult time disassembling everything for the bearing replacement process. My sincere recommendation is that you establish a machine shop.
For your convenience, I’ll pull the drive spindle. A quick update: I discovered that there was an extra set screw on top of the set screw that was holding the aluminum drum on to the drive spindle, which I had previously overlooked. It’s no surprise that I couldn’t get that thing apart!
