Title:
ROLLING ELEMENT FOR TRACTION DRIVE, AND TOROIDAL TYPE CONTINUOUSLY VARIABLE TRANSMISSION
Document Type and Number:
Japanese Patent JP2003343675
Kind Code:
A
Abstract:
To provide a rolling element for traction drive that keeps traction coefficient high under a condition of thick oil film and prevents decrease of durability even under a condition of thin oil film.
In the rolling element for traction drive, a rolling surface 3a of a power roller 3 is provided with a fine groove 3b spirally continuing along the rolling direction, respective rolling surfaces 1a and 2a of input/output disks 1 and 2 are provided with dimples 1b and 2b having a diameter smaller than the width of a fine groove 3b of the power roller 3, and the fine groove 3b of the power roller 3 and the dimples 1b and 2b of input/output disks 1 and 2 are disposed in a range D where a Hertzian contact ellipse in an at least maximum load passes.
Inventors:
CHIBA HIROTAKA
NANBU TOSHIKAZU
YASUDA YOSHITERU
NANBU TOSHIKAZU
YASUDA YOSHITERU
Application Number:
JP2002156661A
Publication Date:
December 03, 2003
Filing Date:
May 30, 2002
Export Citation:
Assignee:
NISSAN MOTOR
International Classes:
F16H15/38; (IPC1-7): F16H15/38
Attorney, Agent or Firm:
Matoba
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