Sealmaster® PN gold mounted bearings feature high phosphorus, electroless nickel coated steel insert with patented seal technology available in either set screw or Skwezloc® concentric locking collar, within a variety of 316 stainless casting high strength composite fluoropolymer coated cast iron housing configurations. The high performance triple lip seal is the latest innovation of over 10 patents on sealing technology. The combination of stainless flingers and FKM lip materials provide a strong contaminant resistance and GoldPlex® FG (USDA H1) food-grade grease loss. Specially engineered for industries with corrosive wash down environments such as food and beverage, pharmaceuticals and chemical processing. PN gold mounted ball bearings provide outstanding performance in demanding corrosive environments. Sealmaster® Pillow Block Ball Bearing, 1-Piece Standard Duty, Series: CRTBC-PN, 1.438 in Bore Dia, 3-1/4 in Bolt Center-to-Center Length, 1-7/8 in Base to Bore Centerline, 4-1/4 in Overall Length, 1-11/16 in Overall Width, 3-3/4 in Overall Height, Tapped Base Mount, Straight Bore Type, 1-7/8 in Base Width, Set Screw Locking Device, High Performance Triple Lip Seal, Non-Expansion, 5782 lb Dynamic, 220 °F, 2000 RPM Maximum, 52100 Steel, Phosphorus Nickel Coated