Patent ID: 6669373
Filing Date: 2003-12-30
Classification: B60B,F16C,F16J

Abstract:
A sealing device for a bearing which comprises:first and second annular sealing plates accommodated within an annular space between inner and outer races, one of said first and second annular sealing plates being secured to one of the inner and outer races while the other of said first and second annular sealing plates is secured to the other of the inner and outer races, each of said first and second sealing plates being of a generally L-shaped section including a cylindrical wall and a radial upright wall; and an elastic seal lip element provided in the second sealing plate, wherein the elastic seal lip element includes a side lip held in sliding engagement with an inner side face of the radial upright wall of the first sealing plate and at least two radial lips held in sliding contact with the cylindrical wall of the first sealing plate, an engagement surface of the second sealing plate that is secured to one of the inner and outer races has at least a free end portion vulcanized with rubber, said first sealing plate being secured with the radial upright wall thereof positioned adjacent respective end faces of the inner and outer races, said radial upright wall of the first sealing plate having a free end remote from the cylindrical wall of the first sealing plate spaced a predetermined distance from the cylindrical wall of the second sealing plate to thereby form a radial gap, and said radial upright wall of the first sealing plate having an outer side face set back inwardly from the free end portion vulcanized with rubber of the cylindrical wall of the second sealing plate.