ハブユニット軸受用内輪の製造方法

Japanese Patent JP7367379

B2

To obtain a manufacturing method which can improve the durability of a large flange part constituting an inner ring for a hub unit bearing.SOLUTION: A manufacturing method of an inner ring for a hub unit bearing includes: a process for obtaining an inner ring raw material 33 which has a lathing margin 35 at a point in which a range continuing to an anti-raceway side side face 19 being an inside face in an axial direction via an external peripheral face 17 from a raceway-side side face 18 being an outside face in the axial direction on a surface of the large flange part 13 should be formed, and in which a thickness of the lathing margin 35 is thicker than the other point in a point in which an objective portion being a portion including an anti-raceway side chamfered part 21 should be formed; a process for performing heat treatment on the inner ring raw material 33 as a whole; and a process for removing the lathing margin 35 of the inner ring raw material 33 which has been subjected to the heat treatment by lathing processing.SELECTED DRAWING: Figure 4

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Yokoyama Nancy Naoko

JP2019150195A

October 24, 2023

August 20, 2019

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Nippon Seiko Co., Ltd.

F16C33/64; B60B35/02; F16C19/38

JP2005140181A
JP2011163454A

Kiwa Patent Office

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