Title:
IN-WHEEL MOTOR DRIVE UNIT
Document Type and Number:
Japanese Patent JP2015169298
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To improve the cost reduction and durability of an in-wheel motor drive unit.SOLUTION: An in-wheel motor drive unit 21 comprises a casing 22 for holding a motor part A, a speed reduction part B and a wheel bearing part C, the speed reduction part B has a reduction gear input shaft 25 connected to a motor rotating shaft 24, and a reduction gear output shaft 28 which transmits the rotation of the decelerated reduction gear input shaft 25 to the wheel bearing part C, and the reduction gear input shaft 25 is rotatably supported by rolling bearings 37a, 37b. The reduction gear input shaft 25 is formed of case hardening steel, and has a hard layer H which is formed by being applied with carburization quenching and tempering as heat treatment.
Inventors:
YUKISHIMA MAKOTO
SUZUKI MINORU
UOZUMI TOMOHISA
SUZUKI MINORU
UOZUMI TOMOHISA
Application Number:
JP2014046129A
Publication Date:
September 28, 2015
Filing Date:
March 10, 2014
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD
International Classes:
F16H1/32; B60K7/00; F16H57/04
Domestic Patent References:
| JP2012148725A | 2012-08-09 | |||
| JPS6263653A | 1987-03-20 | |||
| JP2012148725A | 2012-08-09 | |||
| JPS6263653A | 1987-03-20 |
Foreign References:
| WO2011115219A1 | 2011-09-22 | |||
| WO2011115219A1 | 2011-09-22 |
Attorney, Agent or Firm:
Kunihiko Shiromura
Tsuyoshi Kumano
Tsuyoshi Kumano
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