| 摘要 |
PROBLEM TO BE SOLVED: To provide a rolling bearing having excellent characteristics such as low torque, high moment rigidity and high spin wear resistance, capable of receiving radial load, bidirectional axial load and moment load and usable in a corrosion resistant atmosphere. SOLUTION: Rolling elements 6 are built in between an outer ring 1 and an inner ring 2. The outer ring and the inner ring have two raceway surfaces 4a, 4b and 5a, 5b larger than the radius of each rolling element. Each rolling element is arranged in the alternately intersecting manner on the circumference while an outer diameter 6a used as a rolling contact surface has a curvature also in the axial direction. The outer diameter of each rolling element comes in contact at two points in total, one point each on the constantly facing raceway surfaces of the outer and inner rings. According to the operating environment, stainless steel, ceramics, resin, or the like is used for all of the inner ring, outer ring and rolling elements, or at least the material of one of three elements, and corrosion-resistant coating is applied to the surface of at least one of the inner ring, outer ring and rolling elements.
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