OUTER JOINT MEMBER FOR FIXED CONSTANT VELOCITY UNIVERSAL JOINT

Title:

OUTER JOINT MEMBER FOR FIXED CONSTANT VELOCITY UNIVERSAL JOINT

Document Type and Number:

WIPO Patent Application WO/2010/082427

Kind Code:

A1

Abstract:

An outer joint member for a fixed constant velocity universal joint, capable of being produced with an improved yield ratio and reduced production cost by reducing the number of man-hour by a reduction in the amount of work after forging. An outer joint member for a fixed constant velocity universal joint, provided with a cup section (16) and a shaft section (18) which extends in the axial direction from the bottom of the cup section (16). The outer joint member consists of carbon steel for mechanical structures, and the following portions of the outer joint member are finished by cold forging: track grooves (12), inner diameter spherical surface sections (14a), chamfers (12b) at the cup entrance, track chamfers (12c), chamfers (12a) at the track entrances, portions of the outer diameter surface of the cup section (16), said portions excluding a boot mounting section (19), and a center hole (13) in an end surface (18a) of the shaft section (18).

Inventors:

KOBAYASHI MASAZUMI (JP)
YAMAZAKI KISAO (JP)
ISHIJIMA MINORU (JP)

Application Number:

PCT/JP2009/071088

Publication Date:

July 22, 2010

Filing Date:

December 18, 2009

Export Citation:

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Assignee:

NTN TOYO BEARING CO LTD (JP)
KOBAYASHI MASAZUMI (JP)
YAMAZAKI KISAO (JP)
ISHIJIMA MINORU (JP)

International Classes:

F16D3/20; B21K1/14; F16D3/2237; F16D3/2245

Domestic Patent References:

WO2007148487A1	2007-12-27
WO2007097141A1	2007-08-30
WO2008010340A1	2008-01-24
WO2008099678A1	2008-08-21

Foreign References:

JP2008121791A	2008-05-29
JP2008111469A	2008-05-15
JP2000230570A	2000-08-22
JPH03112125U	1991-11-15
JP2002346688A	2002-12-03

Other References: