A-207022IMP-AI Disc Bearing-ImportOne New Aftermarket Replacement Disc Bearing (Import) Fits Allis Chalmers and Fits Massey Ferguson Disc Harrows This spherical disc harrow bearing features a 1 1 2" square bore and a re lubricatable design, making it a direct fit replacement Fits Allis Chalmers (AC) and Fits Massey Ferguson (MF) disc harrows. The spherical outer race accommodates minor misalignment on disc axles, helping maintain consistent soil engagement across the gang.