CSA204-12 3/4" Bore Cylindrical OD, Insert Bearing w/Locking CollarFYH UC2018D11 1 2" inch ND SS Insert Mounted Bearing CSA204 12 3 4" Bore Cylindrical OD, Insert Bearing W Locking Collar CSA204 12 VXB Bearing. Item: CSA204 12 Mounted Insert Ball Bearing Quantity: 1 Bearing Locking Collar Black Oxide Coated insert Hard Chrome Coated Insert High Temperature Insert 400F Triple lip labyrinth seal Boor : 3 4" inch