I changed a person pulley bearing with SKF 6302-2RS-C3 and the opposite which has a Nachi 6302-2NSE-C3. The Nachi internal race is a tad broader and you may not want the washer, but I utilized a single in any case. I purchased two diverse bearings just to see which a single lasts for a longer time.thanks to the generate ups on this and a couple oth