Notice: When you enter search term "6303RMX" into eBay or Amazon, you will note The provision of o.e.m dimensions bearings - 10X42X13. "6303RMX" is stamped over the OEM idler #2 bearings. I have robust doubts about these getting good quality bearings, such as the Koyo bearings labeled as being made https://ajax-directory.com/listings747703/credit-card-recovery-in-anaheim-an-overview