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Title:
ROLLING ELEMENTS FOR TRACTION DRIVE
Document Type and Number:
Japanese Patent JP3748067
Kind Code:
B2
Abstract:

PROBLEM TO BE SOLVED: To provide rolling elements for traction drive capable of transmission of large power and having a high traction characteristic.
SOLUTION: The rolling elements (input disk 3, output disk 5, and power roller 6) for traction drive transmit power via traction oil between rolling surfaces. In relation to a surface micro shape of the rolling surfaces for transmitting the power of at least one of the rolling elements on the drive side and on the driven side, the cross sectional curve shape that is measured by a surface roughness meter and obtained without passing through a filter is a shape in which recessed parts as grooves and projecting parts as projecting strips are alternately arranged. A shape of the projecting parts over a center line of the cross sectional curve is one of a substantial trapezoid having round corners, a substantially crowning shape, a substantially elliptic arc shape, a substantially sine wave shape, and a substantial triangle having a round apex. The ratio λ/AMP of wavelength λ of irregularity of AMP of half of groove depth is set at 50 to 400.


Inventors:
Toshikazu Nanbu
Hiroki Chiba
Makoto Kano
Yoshiteru Yasuda
Kazuhiko Tanaka
Application Number:
JP2002044125A
Publication Date:
February 22, 2006
Filing Date:
February 21, 2002
Export Citation:
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Assignee:
Nissan Motor Co., Ltd
International Classes:
F16H15/00; F16H15/38; F16H13/00; (IPC1-7): F16H15/38
Domestic Patent References:
JP8296709A
JP7054849A
JP8049755A
JP7103303A
JP11141638A
JP10231908A
JP11141634A
Attorney, Agent or Firm:
Janggi Motonori