Take Note: When you enter key phrase "6303RMX" into eBay or Amazon, you will see The supply of o.e.m size bearings - 10X42X13. "6303RMX" is stamped on the OEM idler #2 bearings. I've sturdy doubts about these remaining excellent bearings, such as the Koyo bearings labeled as staying created in https://aaacollectionagencyinc.com/our_services.html