This is a A-1577800W1 Spherical Bearing, Hex Bore, Prelubed PN: 1577800W1Main Description As Following : A-1577800W1 Spherical Bearing, Hex Bore, Prelubed P.N: 1577800W1 Inside Diameter: 1.250"Outside Diameter: 3.1496"Replaces: 31-1577800 Stocked As: A-W208PPB16-I Found in Section & Models : Headers/Platforms/Feeder House > Feeder House Parts, Massey Ferguson COMBINE: 8560 (Elevator to Table Drive), Massey Ferguson COMBINE: 8570 (Elevator to Table Drive) Associated Items : New Also This is An Aftermarket Product And : Inside Diameter: 1.250" Outside Diameter: 3.1496" Replaces: 31-1577800