Dodge Flange Mount Ball Bearing Unit, Normal Duty Non-Expansion, Series: 203, 5/8 in Bore Dia, 2.54 in Bolt Center-to-Center Length, 2-Bolt Flange Mounting, 2.31 in Overall Length/Diameter, 1.13 in Overall Depth, 3.19 in Overall Height, Eccentric Collar Locking Device, Steel Bearing, 2158 lb Dynamic/1079 lb Static, 7500 rpm Maximum, Zinc Plated DualGuard seal with rubberized flinger is standardPrecision hardened and honed series 200 mounted ball bearings in globally interchangeableWide inner ring design