Patent ID: 7118280
Filing Date: 2006-10-10
Classification: F16C,F16J

Abstract:
1. A sealing device for a rolling contact bearing including an inner race and an outer race coaxial to each other and a rotation axis of the rolling contact bearing, the sealing device comprising: a first metal shield including a cylindrical portion assembled on the outer race of the rolling contact bearing and a flange integral to the cylindrical portion; a second shield formed from metal coupled to the inner race; and a seal of synthetic material and anchored to the cylindrical portion of the first shield to freely extend from and overhang the cylindrical portion; wherein the seal has a shape in axial section tapering towards a cylindrical sliding surface of the second shield, and including a sealing lip substantially in contact with the second shield and a lateral notch axially open towards the inside of the rolling contact bearing; wherein the notch further radially limits towards the inside of the flange and is axially limited towards the outside of the rolling contact bearing by a level surface transverse to the rotation axis; wherein the seal includes a tapered surface which is axially open towards the outside of the rolling contact bearing and defines, together with the level surface, a connecting section between the scaling lip and the cylindrical portion of the first shield; wherein the resistance of the connecting section to a determined flexure maintains the sealing lip in contact with the sliding surface daring variations in working conditions of the seal.