Dodge Flange Mount Roller Bearing Unit, Double-Interlock Non-Expansion Triple Lip Type K, Series: 315, 3-15/16 in Bore Dia, 9.19 in Bolt Center-to-Center Length, 13 in Bolt Circle, Four-Bolt Base Flange Mounting Type, 11.44 in Overall Length/Diameter, 5-1/2 in Overall Depth, 11.44 in Overall Height, 65 deg Setscrew Locking Device, Cast Iron Bearing, 24400 lb Dynamic/154000 lb Static, 1530 rpm Maximum, -100 to 200 deg F, Uncoated Offers tapered roller bearing durability in a variety of mounting stylesXTS triple-lip seal standardExtra protection E-Tect seal optionFactory assembled, adjusted and lubricated shaftSelf-aligning