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Bearing apparatus for a wheel of vehicle

A technology for wheel bearings and wheels, applied in the direction of bearings, axles, wheels, etc., can solve problems such as damage to driving stability and driving feeling, achieve the effects of suppressing deformation, increasing strength and durability, and improving ease of use

Inactive Publication Date: 2005-02-02
NTN CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The surface runout of the brake rotor mounting surface 59 exerts an influence on the runout of the brake rotor 57, and thus produces braking displacement, which impairs driving stability and driving feeling
In this case, although it is also conceivable to further cut the brake rotor mounting surface 59 by lathe turning after the heat treatment of the hub wheel 51, thereby trimming the deformed part to improve the surface radial runout, there is still a problem, namely , between the surface hardened layer 62 of the corner 61 and the unhardened brake rotor mounting surface 59, there is a slight step due to the difference in hardness

Method used

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  • Bearing apparatus for a wheel of vehicle
  • Bearing apparatus for a wheel of vehicle
  • Bearing apparatus for a wheel of vehicle

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Embodiment Construction

[0029] figure 1 A first embodiment of the wheel bearing device of the present invention is shown. In the following description, when the bearing device is mounted to a vehicle body, the term "outside" of the device means a side on the outside of the vehicle body, and the term "inside" of the device means a side on the inside of the vehicle body.

[0030] The illustrated bearing device is a bearing device for a driving wheel of a vehicle, in which a hub wheel 1 and a double-row rolling bearing 2 are assembled into one unit, and the bearing device has a structure that the outer connecting part of a constant velocity joint 3 4 is fitted into the hub wheel 1 by means of a toothed engagement to transmit torque therein.

[0031]The double row rolling bearing 2 includes, as its main components: an outer member 5 in which double rows of outer raceway surfaces 5a and 5a are formed on its inner peripheral surface, and a vehicle body mounting flange 5b mounted to a vehicle body (not sh...

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Abstract

A bearing apparatus is provided for a wheel of vehicle which can increase the strength and durability of the hub wheel under the condition of rotary bending. It comprises an outer member formed with double row outer raceway surfaces on the inner peripheral surface thereof, an inner member formed with double row inner raceway surfaces arranged oppositely to the double row outer raceway surfaces, double row rolling elements contained freely rollably between the outer and inner raceway surfaces respectively of the outer and inner members, and a wheel mounting flange formed integrally with either one of the outer member or the inner member and is characterized in that at least one of the outer member and the inner member on which the wheel mounting flange is formed is heat treated and their raceway surfaces are hardened by quenching to a predetermined surface hardness.

Description

technical field [0001] The present invention relates to a wheel bearing arrangement for supporting a wheel of a vehicle, such as an automobile, and more particularly to a wheel bearing arrangement which includes improved strength and durability when subjected to rotational bending hub wheel. Background technique [0002] Wheel bearing devices include various types according to the application in the driven wheel and the driving wheel. E.g, Figure 5 The conventional vehicle driving wheel bearing device shown in has: a basic part, such as an inner member 50, including a hub wheel 51 and an inner ring 52; double rows of rolling elements 53 and 54; an outer member 55; and a constant velocity joint 56, Used to transmit the output of the engine to the wheel hub 51 . In this vehicle drive wheel bearing device, hub wheel 51 and brake rotor 57 for supporting the wheel (not shown) are made of medium carbon steel for machine structure, such as S53C, because it is easy to forge, cut ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60B27/00B60B35/14F16C19/18F16C33/62F16C33/64F16C33/78F16C35/063
CPCF16C19/186B60B27/0094F16C19/185B60B27/0084B60B27/0026B60B27/0005B60B27/00Y02T10/86F16C33/64F16C2326/02
Inventor 平井功田洼孝康吉田和彦
Owner NTN CORP
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