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Title:
METHOD FOR MANUFACTURING RING BLANK FOR HOUSING WASHER OF BEARING RING FOR SUPPORTING AXIS OF AUTOMOBILE, AND THE RING BLANK
Document Type and Number:
Japanese Patent JP2008168315
Kind Code:
A
Abstract:

To eliminate the insufficiency of the steel blank on the end surface and the surface part of a ring blank so as to prevent the occurrence of burrs on the end surface and the riding up of the blank on the surface part in the case of manufacturing the ring for a housing washer of a double row bearing by forging the blank for cold-rolling processing by a horizontal forging machine, and then subjecting a cold ring rolling processing.

The manufacturing method comprises optimizing the weight distribution of an annular projecting part 2 and an inner face flattening part 3 of the ring blank for the housing washer.


Inventors:
TATE YUKIO
NASU RYUJI
Application Number:
JP2007003140A
Publication Date:
July 24, 2008
Filing Date:
January 11, 2007
Export Citation:
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Assignee:
SANYO SPECIAL STEEL CO LTD
International Classes:
B21K1/05; B21H1/12; B21J1/04; B21J5/12; F16C33/64
Attorney, Agent or Firm:
Kenji Yokoi
Yokoi Satoshi