Dodge Flange Mount Ball Bearing Unit, Medium Duty Non-Expansion Single Lip, Series: 218, 3-7/16 in Bore, 6-3/4 in Bolt Center-to-Center Length, 4-Bolt Base Flange Mounting, 8.44 in Overall Length/Diameter, 3.38 in Overall Depth, 8.44 in Overall Height, Set Screw Locking Device, Steel Bearing, Nitrile Rubber Seal, 21451 lb Dynamic/16641 lb Static Load, 2000 rpm Maximum, 225 to 400 deg F, Powder Coated