Y-Bearings, SKF Concentra

SKF ConCentra Y-bearings have an inner ring symmetrically extended on both sides. The patented SKF ConCentra locking technology is based on the expansion and contraction of two mating surfaces: the bearing bore and the external surface of the stepped sleeve. Both surfaces have precision-engineered serrations. When the grub screws in the mounting collar are tightened, the inner ring is displaced axially, relative to the stepped sleeve. This forces the bearing inner ring to expand and the stepped sleeve to contract evenly, providing a true concentric fit on the shaft. SKF ConCentra Y-bearings provide an easy, quick and reliable way to lock a bearing onto a shaft.