Wheel bearing apparatus incorporated with an in-wheel motor

Patent metadata

Field	Value
Publication number	US-8944196-B2
Application number	US-201213629790-A
Country	US
Kind code	B2
Filing date	Sep 28, 2012
Priority date	Mar 30, 2010
Publication date	Feb 3, 2015
Grant date	Feb 3, 2015

Abstract

A wheel bearing apparatus incorporating an in-wheel motor has a connecting shaft. The connecting shaft has a disc portion, forming the planetary elements, and a shaft portion, axially extending from the disc portion, via a shoulder portion. The outer circumference of the shaft portion has a serration. The connecting shaft is inserted into the wheel hub until the disc portion abuts the inner member. A seal ring, formed of elastic material, is interposed between the inner member and the connecting shaft to shield the driving portion from the outside in a liquid-tight manner.

First claim

What is claimed is:

1. A wheel bearing apparatus incorporating an in-wheel motor comprising:
a wheel bearing;
a planetary reduction gear mounted on the wheel bearing;
an electric motor (M) for driving the planetary reduction gear; and
a driving portion having a rotation member;
the wheel bearing includes an outer member integrally formed on an outer circumference with a body mounting flange and the outer member inner circumference including double row outer raceway surface…

Assignees

• Ntn Toyo Bearing Co Ltd

Inventors

• Yamada Tomoya
• Suzuki Syougo

Classifications

• B60B7/00

  Operations & Transport · mapped topic

• F16H1/28

  Mechanical Engineering · mapped topic

• B60B27/0026

  Operations & Transport · mapped topic

• B60B7/066

  Operations & Transport · mapped topic

• H02K7/116

  Electricity · mapped topic