Invention Grant
US09574609B2 Superfinishing machine, superfinishing method and outer ring of bearing having superfinished raceway surface 有权
超精加工机,超精加工方法和具有超级滚道面的轴承外圈

Superfinishing machine, superfinishing method and outer ring of bearing having superfinished raceway surface
Abstract:
A superfinishing machine and a superfinishing method which can perform axially uniform finishing on a logarithmically crowned surface formed on an inner peripheral surface of an annular member in a short time, and an outer ring of a bearing having a raceway surface superfinished by the superfinishing method, are provided. A superfinishing machine 1 includes a linearly reciprocating mechanism 40 configured to linearly reciprocate a grinding stone 3 held by a pressing section 30, along a plane B touching a generatrix of the logarithmically crowned surface, and in a direction C inclined by a given angle φ with respect to a center axis O of an outer ring 10.
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