Dodge imperial spherical roller bearings are the only high-capacity double-row spherical roller bearings with an effective easy-on, easy-off adapter mounting and removal system. Not only does this patented system provide a concentric grip for superior holding on the shaft, but it reduces the fretting corrosion caused by traditional setscrews and vibration. Dodge Pillow Block Roller Bearing Unit, Imperial SAF, 6 in Bore Dia, 19.38 to 21.63 in Bolt Center-to-Center Length, 7.06 in Base to Bore Centerline, 24-3/4 in Overall Length, 7.08 in Overall Width, 13.69 in Overall Height, Four-Bolt Base Mount, Round Bore Type, 6-3/4 in Base Width, Adapter Mounted Locking Device, Trident Triple-Lip Seal, Non-Expansion Expansion Type, 220000 lb Dynamic/315000 lb Static, -100 to 200 deg F, 975 rpm Maximum, Cast Iron, Uncoated Factory lubed, sealed and adjusted, ready to slip onto the shaftPatented imperial push/pull adapter mounting systemInterchangeable with SAF style pillow blocksEliminates need for feeler gaugesEasy and intuitive removal methodSeal operates up to +/- 1 deg of misalignment