Title:
IN-WHEEL MOTOR DRIVE DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/137925
Kind Code:
A1
Abstract:
Provided is an in-wheel motor drive device 21 in which a semi-solid lubricant J is present in a spline-fitted portion M where an output gear shaft 37 and a hub wheel 51 are coupled, and an opening of a hollow portion of the hub wheel 51 is sealed with an annular first seal member S1 disposed on the inboard side relative to the spline-fitted portion M, and with a second seal member S2 disposed on the outboard side relative to the spline-fitted portion M. The output gear shaft 37 is provided with a hole portion 65 having one end that opens at an end surface 37c on the outboard side, and another end that opens at a surface E exposed to the internal space of a casing 22.
Inventors:
SATO KATSUNORI (JP)
Application Number:
PCT/JP2019/050227
Publication Date:
July 02, 2020
Filing Date:
December 20, 2019
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD (JP)
International Classes:
B60K7/00; F16H1/06; F16H57/04; F16J13/14; F16J15/06
Foreign References:
| JP2015137733A | 2015-07-30 | |||
| JP2018199364A | 2018-12-20 |
Attorney, Agent or Firm:
SHIROMURA Kunihiko et al. (JP)
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