Dodge Flange Mount Roller Bearing Unit, Non-Expansion Special Duty Type C, Series: 203 Series, 2-3/16 in Bore Dia, 6.45 in Bolt Center-to-Center Length, 9.13 in Bolt Circle, Four-Bolt Base Flange Mounting Type, 10-3/4 in Overall Length/Diameter, 5-3/4 in Overall Depth, Concentric Clamp Collar Locking Device, Steel Bearing, Steel Seal, 1700 lb Radial, 2500 rpm Maximum, -100 to 200 deg F, Uncoated Clamp sleeve mounting for improved concentricitySteel multiple labyrinth sealsTwo quality single rowTapered roller assembliesRugged two-piece housingElongated bolt holes