Sealmaster® RPB-CR self-aligning high capacity tapered roller bearings include a fluoropolymer-coated housing and locking collars. They also include stainless steel grease fittings and single lip contact seal. For corrosion resistant applications, they also include GoldPlex® FG (USDA H1) food grade grease. The fluoropolymer coating is resistant to most chemicals and hydrocarbon solvents. These bearings are used in applications where they may be subjected to moisture and corrosive and abrasive environments. Depending on your preference, these bearings are available in two or four bolt pillow blocks and four bolt flanges. Sealmaster® Pillow Block Roller Bearing Unit, Standard-Duty, Series: RPB-CR, 1-3/4 in Bore, 6-5/16 to 7-3/16 in Bolt Center-to-Center Length, 2-1/4 in Base to Bore Centerline, 8-7/8 in Overall Length, 3-1/2 in Overall Width, 4-5/8 in Overall Height, Two-Bolt Base Mounting, Round/Tapered Bore, 2-7/16 in Base Width, Double Set Screw Locking Device, Contact Seal, Non-Expansion (Fixed) Expansion, 8070 lb Dynamic Load, 250 °F, 2500 RPM Maximum, Cast Iron, Fluoropolymer Coated