| 摘要 |
A tapered roller bearing comprises: an outer race 12 having a raceway surface 21; an inner race 11 having a raceway surface 20; and a plurality of rolling elements 15 located between the raceway surfaces and formed by third generatrices having a fixed radius of curvature R3 such that the rolling contact surface is convex in the axial direction; and where the center section 20a, 21a of the raceway surfaces 20, 21 is formed by first generatrices having a fixed radius of curvature R1 in an axially concave-shape, and the opposite ends 20b, 21b in the axial direction adjacent to the center section 20a, 21a are formed by second generatrices having a fixed radius of curvature R2 such that they separate from the rolling contact surface of the rolling element 15; and where the radius of curvature R3 of the third generatrices surface satisfies Equation [1] below. |
