1401185 Bearing Self Aligning Fits Caterpillar D5MOne New Aftermarket Replacement Self Aligning Bearing Fits Caterpillar (Fits CAT) D5M Track Type Tractor This aftermarket replacement self aligning bearing is designed to accommodate shaft to housing misalignment on the Fits Caterpillar D5M Track Type Tractor. Engineered to handle both radial and axial loads, self aligning bearings are critical in applications where precise alignment between rotating components is challenging or subject to change