Note: In Case you enter key word "6303RMX" into eBay or Amazon, you will notice The supply of o.e.m sizing bearings - 10X42X13. "6303RMX" is stamped around the OEM idler #2 bearings. I've sturdy doubts about these currently being top quality bearings, such as the Koyo bearings labeled as remaining https://aaacollectionagencyinc.com/about_us.html