Title:
MANUFACTURING METHOD FOR TAPERED ROLLER, AND TAPERED ROLLER BEARING
Document Type and Number:
WIPO Patent Application WO/2015/050144
Kind Code:
A1
Abstract:
The present invention implements a manufacturing method by which a good quality tapered roller can be obtained at low cost. An intermediate material (17) is obtained by grinding an outer peripheral surface (15) of a preliminary intermediate material (14), which is obtained by plastic working a metallic and cylindrical material, using a grindstone (16), with a large diameter-side end surface (10) of the preliminary intermediate material (14) as a reference. A final intermediate material (21a) is obtained by grinding the large diameter-side end surface (10) of the intermediate material (17) using a grindstone (20), and grinding the intermediate material (17) by a predetermined length instead of setting the intermediate material (17) to a predetermined length.
More Like This:
| JP2002250344 | ROLLER BEARING |
| WO/2010/122955 | TAPERED ROLLER BEARING AND METHOD OF DESIGNING SAME |
| WO/2007/046263 | ROLLER BEARING |
Inventors:
HADA RYOSUKE (JP)
YAMASHITA SOTARO (JP)
YAMASHITA SOTARO (JP)
Application Number:
PCT/JP2014/076216
Publication Date:
April 09, 2015
Filing Date:
September 30, 2014
Export Citation:
Assignee:
NSK LTD (JP)
International Classes:
F16C33/36; F16C19/36
Foreign References:
| JP2000304054A | 2000-10-31 | |||
| JP2011017651A | 2011-01-27 | |||
| JP2011152597A | 2011-08-11 |
Attorney, Agent or Firm:
Kiwa International (JP)
Patent business corporation Takakazu patent firm (JP)
Patent business corporation Takakazu patent firm (JP)
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