Dodge Flange Mount Ball Bearing Unit, Medium Duty Non-Expansion Single Lip, Series: 212, 2-3/16 in Bore Dia, 5.63 in Bolt Center-to-Center Length, Four-Bolt Base Flange Mounting Type, 6.88 in Overall Length/Diameter, 2.45 in Overall Depth, 6.88 in Overall Height, D-LOK Concentric Clamp Collar Locking Device, Steel Bearing, Nitrile Rubber Seal, 11791 lb Dynamic/8100 lb Static, 3500 rpm Maximum, 225 to 400 deg F, Powder Coated Precision-hardened and honed inner and outer ringsNew rugged housing designDual guard positive contact seal including rubberized flingersStronger and flexible ball retainerSimplified anti-rotation deviceWide inner ring design