Bearing device for driving wheel

A technology for driving wheels and bearing devices, applied in rolling contact bearings, bearings in rotating motion, bearings, etc., can solve problems such as failure to reach service life, and achieve the effect of satisfying service life, low cost, and inhibiting wear and tear.
CN1426908AInactive Publication Date: 2003-07-02NTN CORP
1 Cites 21 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NTN CORP
Publication Date
2003-07-02
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

A bearing apparatus for a driving wheel of a vehicle is provided to promote reduction in the weight and size of the apparatus, suppress excessive stress or wear, and improve the durability. In a bearing apparatus for a driving wheel of a vehicle, a hub wheel(1), a constant velocity universal joint(3), and a double row rolling bearing(2) are assembled as a unit. One(1a) of the inner raceway surfaces in the double row rolling bearing is formed on the outer circumferential surface of the hub wheel, and the other(14a) of the inner raceway surfaces is formed on the outer circumferential surface of an outer joint member(14). The hub wheel and the outer joint member are fitted each other with one end surface(19) being abutted against a shoulder(16) of the outer joint member. The inner circumferential surface at the fitting portion of the hub wheel is formed with a hardened irregular portion(5). The hub wheel and the outer joint member are integrally connected via plastic deformation of the outer joint member with making the hardened irregular portion bite into the outer circumferential surface at the fitting portion of the outer joint member by radially outwardly expanding the fitting portion of the outer joint member. The outer circumferential surface of the outer joint member is formed with a hardened layer at least at a region including the inner raceway surface and a shaft portion(17) except for the fitting portion of the outer joint member.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The present invention relates to a drive wheel bearing device for supporting a drive wheel of an automobile, and more particularly, to a drive wheel bearing device in which a hub wheel, a universal joint, and a plurality of rows of rolling bearings are assembled. Background technique

[0002] The rear wheels of a rear-wheel drive vehicle, the front wheels of a front-wheel drive vehicle, or all the wheels of a four-wheel drive vehicle are supported on the drive wheel bearing device through the suspension device. In recent years, efforts have been made to reduce the weight and size of bearing devices for drive wheels, and there is a tendency to assemble hub wheels, constant velocity joints, and bearings into assemblies.

[0003] Figure 12 A vertical cross-sectional view of a conventional drive wheel bearing device is shown in which a wheel hub 50 , a plurality of rows of rolling bearings 60 , and a universal constant velocity joint 70 are assembled. Th...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More