Description Cast Iron Bearing Housing - 4-Bolt Flange - For bearing 20824 - Will accept USA and Import Inserts but only the import inserts will be greasable. This item is a suitable alternative for the following: 851-NF208, FBH4208IMP, FBH4208, FS208, F-80G, RCJ80MM, RCJ-80MM, FBH4208-IMP