Dodge Ball Bearing Unit, Normal Duty Non-Expansion, Series: 205 Series, 1 in Bore Dia, 3.89 in Bolt Center-to-Center Length, Two-Bolt Base Flange Mounting Type, 4.88 in Overall Length/Diameter, 1.65 in Overall Depth, 2-3/4 in Overall Height, Eccentric Collar Locking Device, Steel Bearing, Nitrile Rubber Seal, 3146 lb Dynamic/1769 lb Static, 7500 rpm Maximum, Powder Coated DualGuard seal with rubberized flinger is standardPrecision hardened and honed-series 200 mounted ball bearings in globally interchangeable, ISO dimensionsWide inner ring designDodge DualGuard land-riding, positive contact sealStronger and flexible ball cageSimplified anti-rotation device