I replaced just one pulley bearing with SKF 6302-2RS-C3 and the opposite having a Nachi 6302-2NSE-C3. The Nachi inner race is a little wider and you may not want the washer, but I utilised one particular anyways. I bought two distinct bearings in order to see which one particular lasts https://webdirectoryone.com/listings13171908/the-2-minute-rule-for-chin-threading-services-in-sun-city