| 摘要 |
PROBLEM TO BE SOLVED: To smooth axial movement of a tapered roller during running-in. SOLUTION: By respectively deviating the apexes of crowning of a raceway surfaces 1a, a raceway surface 2a, and a rolling surface 3c from an axial center to the large part side, a contact part central position C between an orbit surface 1a, and a raceway 2a and a rolling surface 3c is deviated from the axial center (a position being 1/2 of length L) of a tapered roller 3 to the large part side by a given amount α. |
