Item No.: SSUCFC204~SSUCFC212SSUCFC All stainless steel flange cartridge units,Setscrew lockingHousing: Stainless steel 304 Zerk fittings: Stainless steel 304 Insert bearing: Stainless steel 440 Steel ball:Stainless steel 440 Retainer: Stainless steel 201 Seal: Silicon rubber seal Lubricant: Food grade grease TOTAL NEVASTANE XMF 2 or Mobil FM222 Outer ring with grease groove and holes,at same side of setscrew With anti-rotation pin at opposite side of setscrew Phone: +86-592-580 8851 / +86-592-580 7618Email: sales@ldk-bearing.com ; benjamin@ldk-bearings.com