I'm not sure what type or size you need but as a former industrial purchasing manager I can say there are two basic types the 'sprirolox' style and the 'Truac' style. Other's manufacture copies of these. Any local business to business that specializes in bearing will carry these. Most have over the counter sales. Measure the shaft diameter and the groove diameter and width or the Bore and groove minor diameter and width. Even better if you have the old one to take along. I assume you want stainless.