It took years of study and measuring and inspecting failed bearings and seals, and retainer plates, to design a better retainer, and to finally arrive at a retainer plate that solved all the faults in original design. You benefit from all this with a retainer plate that DOES ITS JOB!
Patent Pending T.A.B.O.R plates are design engineered for use with TIMKEN SET 9 or 10 tapered roller bearings, and ONLY the NATIONAL 9912 outer oil seals.