RA104RRB-IMP One New Aftermarket Insert Bearing With Collar 3013-2508One New Aftermarket Insert Bearing With Collar Tech Info: Bearing Type Insert Bearing Bore Shape Round Greasable Sealed Sealed Inner Race Narrow Outer Race Shape Spherical Shaft Lock Type Lock Collar Bearing Inner Diameter 1. 25" Bearing Outer Diameter 2. 84" Overall Width 1. 53" Replaces Part Numbers: 3013 2508, SA20720, AE28296, 565672R92, RA104RRB IMP, JD8593