Bearing assembly having press-fitted thrust ribs
AssigneeThe Timken Company
InventorsJames Eddie Jones, William E. Harbottle, Dennis Lee Otto
Life of this patent
Estimating the term…
Abstract
A bearing assembly has a shaft extended through a double cup with opposed tapered raceways machined directly into the cup and shaft. A row of tapered rollers is positioned between each pair of raceways, and the rollers of each row are mounted in opposition and substantially on apex. Expulsion of the rollers is prevented by annular rib rings which are press-fitted over the shaft and embrace the shaft at the large diameter ends of the tapered raceways thereon. The shaft has grooves which underlie the rib rings and enhance the holding power of the rings.
Claims15
A bearing assembly comprising a cup having a tapered raceway;
- a shaft extended through the cup and having a tapered raceway located opposite to the cup raceway, the shaft also having a substantially cylindrical surface located adjacent to the large diameter end of the tapered raceway, the diameter of the cylindrical surface and the diameter of the large end of the tapered raceway being substantially equal;
- tapered rollers fitted between and contacting the raceways;
- and an annular thrust rib ring press-fitted over the cylindrical surface of the shaft and positioned opposite the large diameter ends of the rollers to maintain the rollers in the correct axial position with respect to the shaft.
A bearing assembly comprising:
- an outer race having an inwardly presented raceway;
- a shaft extending through the outer race and having an outwardly presented raceway located thereon opposite to the raceway of the outer race, the shaft having an outwardly opening depression located axially beyond the raceway on the shaft;
- rolling elements located between and contacting the raceways;
- and a rib ring encircling the shaft at the depression therein, the rib ring extending over the depression while being spaced from the base of the depression;
- the rib ring being located against the rolling elements to axially position the rolling elements between the raceways, the rib ring further being sized for a tight interference fit with the shaft.
A bearing assembly comprising a cup having two tapered raceways on it;
- a shaft extended through the cup and having two tapered raceways located opposite to the raceways of the cup whereby two sets of opposed tapered raceways exist in the bearing assembly;
- tapered rollers arranged in two rows, with the rollers of one row being between and contacting the raceways of the one set and the rollers of the other row being between and contacting the raceways of the other set, the tapered rollers of the one row being directed in the opposite direction from the tapered rollers of the other row;
- and annular thrust rib rings pressfitted over the shaft and positioned opposite the large diameter ends of the rollers in each row to maintain the rollers in the correct axial position with respect to the shaft, whereby the adjustment of the bearing assembly is dependent on the axial positioning of the thrust rib rings.
Dependencies are inferred from the claim text.