| 摘要 |
PROBLEM TO BE SOLVED: To provide an angular ball bearing device, attaining high rigidity while absorbing deformation due to temperature even in an environment having a large temperature change. SOLUTION: An inner ring 4c of a bearing composed of an outer ring 4a, balls 4b and an inner ring 4c is fixed by an inner ring pressing plate 1a formed on a shaft 1, and the outer ring 4a is provided with an outer spacer 5a and an inner spacer 5b disposed and fixed on both sides thereof. The outer spacer 5a and the inner spacer 5b are formed by a combination of suitable materials different in coefficient of linear expansion to absorb a differnece in amount of thermal deformation caused in the shaft 1, the bearing (4a, 4b, 4c) and a housing 2. COPYRIGHT: (C)2006,JPO&NCIPI
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