Title:
RACEWAY RING FOR RADIAL BALL BEARING AND ITS MANUFACTURING METHOD
Document Type and Number:
Japanese Patent JP2006181638
Kind Code:
A
Abstract:
To develop a manufacturing method which can obtain an outer ring 2a used for a radial ball bearing, while maintaining a practically sufficient accuracy at low cost.
A highly precise workpiece 8 shown in (A) is formed into the outer ring 2a shown in (E), through a preparatory intermediate workpiece 9 shown in (B), a first intermediate workpiece 10 shown in (C), and a second intermediate workpiece 11 shown in (D). In each processing step, cold processes such as forging and rolling are applied, none of which causes removal of material.
Inventors:
KOBAYASHI KAZUTO
OTSUKA SEIJI
YASUDA YUTAKA
SHINDO ISAO
OTSUKA SEIJI
YASUDA YUTAKA
SHINDO ISAO
Application Number:
JP2005165540A
Publication Date:
July 13, 2006
Filing Date:
June 06, 2005
Export Citation:
Assignee:
NSK LTD
International Classes:
B21K1/04; B21H1/12; F16C33/64
Attorney, Agent or Firm:
Takeo Koyama
Nakai Shun
Kinzo Koyama
Nakai Shun
Kinzo Koyama
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