Title:
TOROIDAL CONTINUOUSLY VARIABLE TRANSMISSION
Document Type and Number:
WIPO Patent Application WO/2002/053943
Kind Code:
A1
Abstract:
A toroidal continuously variable transmission, comprising an input shaft, an input disk, an output disk, a plurality of trunnions, a plurality of power rollers, and thrust roller bearings, characterized in that at least one of the input disk, output disk, and power roller of a power roller bearing is formed of an alloy steel and carburized and ground or carbonitrided and ground, and at least one of the input disk, output disk, and power roller is 2.0 to 4.0 mm in effective hardened layer depth from the surface thereof with a hardness of Hv 653.
Inventors:
YOSHIKAWA TOMONOBU (JP)
Application Number:
PCT/JP2001/011245
Publication Date:
July 11, 2002
Filing Date:
December 21, 2001
Export Citation:
Assignee:
NSK LTD (JP)
YOSHIKAWA TOMONOBU (JP)
YOSHIKAWA TOMONOBU (JP)
International Classes:
C23C8/22; C23C8/32; C23C8/80; F16H15/38; (IPC1-7): F16H15/38; C23C8/22; C23C8/32
Foreign References:
| US5556348A | 1996-09-17 | |||
| JPH0979339A | 1997-03-25 | |||
| JPH11199983A | 1999-07-27 |
Other References:
"Ko no shintan kokaso fukasa sokuteiho", 30 June 1996, JAPANESE STANDARDS ASSOCIATION, JAPANESE INDUSTRIAL STANDARD JIS G 0557-1996, XP002909434
See also references of EP 1348775A4
See also references of EP 1348775A4
Attorney, Agent or Firm:
Suzuye, Takehiko c/o SUZUYE & SUZUYE 7-2 (Kasumigaseki 3-chome Chiyoda-ku, Tokyo, JP)
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