| 摘要 |
PROBLEM TO BE SOLVED: To prevent occurrence of early separation at a rolling contact part of an inner ring race 5 and an outer ring race 7 from a rolling surface of each ball 9 even when a rolling bearing is installed in an aluminum alloy housing of low rigidity. SOLUTION: Each dimension is regulated so that the value K calculated by the formula ä(h<SP>1.5</SP>x W)/(Da<SP>1.1</SP>x 0.4D<SP>0.5</SP>)} satisfies the relation, 1.20≤K≤2.00, where D is the outside diameter of an outer ring 8; W is the width of the outer ring 8 in the axial direction; h is the minimum wall thickness of a part having the outer ring race 7 at a center part in the axial direction of the outer ring 8; and Da is the diameter of each ball 9. As a result, early separation caused by the elastic deformation of the outer ring 8 is prevented by sufficiently ensuring the rigidity of the outer ring 8 without considerably increasing the size of the outer ring 8. COPYRIGHT: (C)2004,JPO
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