Dodge Pillow Block Roller Bearing Unit, Double-Interlock Type K, Series: 103, 1-1/4 in Bore Dia, 6 to 6.38 in Bolt Center-to-Center Length, 2.13 in Base to Bore Centerline, 7-1/2 in Overall Length, 2.28 in Overall Width, 4.53 in Overall Height, Two-Bolt Base Mount, Round Bore Type, 1.88 in Base Width, 65 deg Setscrew Locking Device, Trident Triple-Lip Seal, Expansion Expansion Type, 3450 lb Dynamic/15760 lb Static, 4490 rpm Maximum, Cast Iron, Black Oxide Factory assembled, adjusted and prelubricatedCase hardened rollers and racesEasy installation and maintenanceTriple rubber lip contacting seals