Title:
IN-WHEEL MOTOR DRIVE DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/070055
Kind Code:
A8
Abstract:
Provided is an in-wheel motor drive device 21 comprising an electric motor section A, a speed reducer section B, and a bearing section C for a wheel. The in-wheel motor drive device 21 is provided with a casing 22, and the speed reducer section B has a speed reduction structure comprising parallel shaft gears. The in-wheel motor drive device 21 is characterized in that: the parallel shaft gears are constituted of one or more intermediate shafts S1 provided with an input-side intermediate gear 31 and an output-side intermediate gear 32, and of an output shaft 36 provided with a final output gear 35; the opposite ends of the intermediate shafts S1 and the opposite ends of the output shaft 36 are rotatably supported by rolling bearings 44, 45, 48, 49; and, among the rolling bearings 44, 45, 48, 49, the rolling bearing 44 located adjacent to the input-side intermediate gear 31 and/or the rolling bearing 48 located adjacent to the final output gear 35 is disposed in the inner diameter-side recess 33, 47 in the adjacent gear 31, 35.
Inventors:
TAIKOU SHINYA (JP)
TAMURA SHIRO (JP)
UOZUMI TOMOHISA (JP)
TAMURA SHIRO (JP)
UOZUMI TOMOHISA (JP)
Application Number:
PCT/JP2016/082716
Publication Date:
May 02, 2019
Filing Date:
November 02, 2016
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD (JP)
International Classes:
B60K7/00; F16H57/021
Attorney, Agent or Firm:
SHIROMURA Kunihiko et al. (JP)
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