I replaced a single pulley bearing with SKF 6302-2RS-C3 and another using a Nachi 6302-2NSE-C3. The Nachi internal race is a tad wider and you may not have to have the washer, but I employed a single anyhow. I bought two different bearings only to see which one particular lasts https://ontopicdirectory.com/listings13178573/half-arms-waxing-salon-in-lincoln-options