| 摘要 |
PROBLEM TO BE SOLVED: To suppress the rotation torque low, as well as to seal the inner space of a rolling bearing stably, even when the rolling bearing is used in the condition that the load is applied offset at one side in the radial direction. SOLUTION: The outer peripheral edges of a pair of seal rings are fixed on the inner peripheral surface of both ends in the axial direction of an outer ring 2. The front end edges of seal lips 11a to compose the seal rings 8 are sliding contacted to a taper surface 13 formed along the full periphery of the both ends in the axial direction of an inner ring 4. When the angle made by a straight line including the taper surface, and center axis isα, the angle made by a tangent at the contact point of a first imaginary circle which passes the contact point of the seal rings and the taper surface by making the center of the member having the taper surface as the center of the circle, and the center axis, isθ1, and the angle made by a tangent at the contact point of a second imaginary circle which passes the contact point and the center axis at the contact point, by making the center of the rolling body at the opposite side across the contact point and the center axis at 180 deg. as the center, isθ2, the following relation is accomplished:θ2<=α<θ1.
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