I Replaced just one pulley bearing with SKF 6302-2RS-C3 and the opposite using a Nachi 6302-2NSE-C3. The Nachi interior race is a tad broader and you may not require the washer, but I used 1 in any case. I bought two different bearings only to see which 1 lasts extended. https://luxepointbrowsandbeauty.com/contact.html