Title:
CYLINDRICAL ROLLER FOR TRIPOD CONSTANT VELOCITY JOINT AND METHOD OF MANUFACTURING THE ROLLER
Document Type and Number:
WIPO Patent Application WO/2000/014419
Kind Code:
A1
Abstract:
A method of manufacturing a cylindrical roller for tripod constant velocity joint, comprising the steps of, at the initial stage of a production process, forming a pair of inserting grooves (19) by forging in a metal material for manufacturing a cylindrical roller (5) and, at the same time, forming a reference cylindrical surface part concentric to the bottom surface (37) of each mounting groove (19) and a reference flat surface part perpendicular to the center axis of the reference cylindrical surface part in the inner diameter side part of the metal material, supporting the reference cylindrical surface part by the chuck of a lathe when the metal material is turned so as to set the center axis of the reference cylindrical surface part to the center of rotation in turning operation, and turning the metal material under this condition so as to form the cylindrical surface part (16) on the outer peripheral surface of the metal material and the spherical recessed surface part (18) on the inner peripheral surface of it coaxially with the bottom surface (37) of each inserting groove (19).
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Inventors:
OHKUBO KIYOSHI (JP)
Application Number:
PCT/JP1999/004760
Publication Date:
March 16, 2000
Filing Date:
September 02, 1999
Export Citation:
Assignee:
NSK LTD (JP)
OHKUBO KIYOSHI (JP)
OHKUBO KIYOSHI (JP)
International Classes:
B23P21/00; B21K1/76; F16D3/20; F16D3/205; (IPC1-7): F16D3/205; B21K1/14
Foreign References:
| JPH0567821U | 1993-09-10 | |||
| JPH08338439A | 1996-12-24 | |||
| JPH08145071A | 1996-06-04 | |||
| JPS58132343A | 1983-08-06 |
Attorney, Agent or Firm:
Kamoda, Asao (Rainbow Building 8th floor 2-15-17
Nishi-Shimbashi Minato-ku Tokyo, JP)
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