Take note: When you enter search term "6303RMX" into eBay or Amazon, you will see The provision of OEM dimensions bearings - 10X42X13. "6303RMX" is stamped over the OEM idler #two bearings. I have strong doubts about these being high-quality bearings, such as the Koyo bearings labeled as staying built https://sectordirectory.com/listings705930/the-basic-principles-of-credit-recovery-agency-in-anaheim