Title:
SINGLE-CAVITY TOROIDAL CONTINUOUSLY VARIABLE TRANSMISSION
Document Type and Number:
WIPO Patent Application WO/2015/052950
Kind Code:
A1
Abstract:
Provided is a single-cavity toroidal continuously variable transmission with which gyro slippage is suppressed, bearing loss is reduced, and the service life is increased. In this single-cavity toroidal continuously variable transmission the pitch circle diameter (PCD) of an output-side bearing (46) is smaller than that of an input-side bearing (43), and the ball diameter of the output-side bearing (46) is smaller than that of the input-side bearing (43), so the centrifugal force applied to the balls of the output-side bearing on the speed-increase side/under a low load can be reduced. Accordingly, gyro slippage can be suppressed and bearing loss can be reduced. Furthermore, by making the groove R ratio of the output-side bearing (46) smaller than that of the input-side bearing (43), the service life can be increased even when he pitch circle diameter (PCD) and the ball diameter of the output-side bearing (46) are smaller than that of the input-side bearing (43).
More Like This:
Inventors:
KISHIDA HIROTAKA (JP)
ONO JUNJI (JP)
ONO JUNJI (JP)
Application Number:
PCT/JP2014/059728
Publication Date:
April 16, 2015
Filing Date:
April 02, 2014
Export Citation:
Assignee:
NSK LTD (JP)
International Classes:
F16H15/38
Foreign References:
| JP2979945B2 | 1999-11-22 | |||
| JPH11132301A | 1999-05-21 | |||
| JP2004530847A | 2004-10-07 | |||
| JP2013184656A | 2013-09-19 | |||
| JP2979945B2 | 1999-11-22 | |||
| JPH11132301A | 1999-05-21 |
Other References:
See also references of EP 3056764A4
Attorney, Agent or Firm:
KURIBAYASHI, Mitsuo (JP)
Mitsuo Kuribayashi (JP)
Mitsuo Kuribayashi (JP)
Download PDF:
Previous Patent: COVER MEMBER
Next Patent: OPTICAL FIBER UNIT, METHOD FOR BRANCHING OPTICAL FIBER, AND OPTICAL FIBER CABLE
Next Patent: OPTICAL FIBER UNIT, METHOD FOR BRANCHING OPTICAL FIBER, AND OPTICAL FIBER CABLE