| 摘要 |
PROBLEM TO BE SOLVED: To provide a rolling bearing capable of receiving radial load and bilateral axial load having low torque, high moment rigidity, and a high spin wear resistant property, and moment load in spite of low cost. SOLUTION: An outer ring 1 and inner ring 2 have raceway grooves formed by raceway surfaces having a radius greater than the radius of a rolling body 5 respectively. At least one of raceway rings, for example, the outer ring 1 is comprised of two raceway surfaces 1a and 1a', and the rolling body 5, in which the outer diameter 5a as a rolling contact surface has a curvature in an axial direction, is alternately disposed on the circumference of the raceway grooves respectively. The outer diameters 5a and 5a of the rolling bodies 5 and 5 are kept in contact with the outer raceway surface 1a and an inner raceway surface 2a always opposing each other and also the outer raceway surface 1a' and inner raceway surface 2a always opposing each other, which keep in contact each other at one point respectively and totally two points at each of the opposing raceway surfaces. The rolling body 5 has a partially cut spherical shape in one side.
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