Item No.: SNA204~SNA212,SNA204L3~SNA212L3SNA Standard duty, Stainless steel,Wider inner ring,Eccentric lockingSteel ball:Stainless steel 440 Retainer: Stainless steel 201 Seal: Silicon rubber seal Eccentric locking collar:Stainless steel 304 Lubricant: Food grade grease Mobil FM222 Outer ring with grease groove and holes,at same side of eccentric locking collar 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