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Wheel bearing device

A technology of wheel bearings and hub wheels, which is applied to bearings, axles, wheels, etc., can solve problems such as compressive permanent deformation, and achieve the effect of reducing abnormal noise

Inactive Publication Date: 2017-05-24
NTN CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, although vibration suppressing materials (such as polymer materials) applied to hub wheels of automobiles have an excellent vibration absorbing effect in a high-frequency region above several kilohertz (kHz), they cannot pass through polymer materials (such as rubber) Obtain an attenuation effect sufficient to resist the resonance noise of 200-300 Hz caused by the vibration of rubber tires due to uneven roads
In addition, when a centrifugal load is repeatedly or continuously applied to the hub wheel for a long period of time, there may be problems in the durability of the hub wheel and the promotion of compression set caused by the centrifugal load

Method used

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Embodiment approach

[0035] Preferred embodiments of the present invention will be described with reference to the accompanying drawings.

[0036] figure 1 is a longitudinal sectional view of an embodiment of the wheel bearing device of the present invention, figure 2 is showing figure 1 The enlarged view of the damping mechanism, image 3 is showing figure 2 An enlarged view of a modification of the damping mechanism, Figure 4 is showing figure 1 A longitudinal sectional view of a modification of the wheel bearing arrangement, Figure 5 is showing figure 1 A longitudinal sectional view of another modification of the wheel bearing device of Figure 6 is showing figure 1 A longitudinal sectional view of yet another modification of the wheel bearing device of . In the description of this specification, the outer side of the wheel bearing unit when the wheel bearing unit is mounted on the vehicle is referred to as “outer side” (the left side in the figure), and the inner side of the ...

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Abstract

Provided is a wheel bearing device that prevents the development of resonance with components around a bearing portion while ensuring rigidity of the wheel bearing device, offering excellent vibration absorption performance and durability. An attenuation mechanism (14) is disposed at the center in an axial direction of parallel rows of inner rolling surfaces (1a, 2a) of an internal member (3). The attenuation mechanism (14) is provided with a metal weight (15) and an elastic member (16) having a predetermined thickness and covering an outer surface of the weight (15), with attachment portions (17) formed at both ends of the elastic member. The attenuation mechanism (14) is affixed with metal fastener bands (18) fitted on the attachment portions (17). The weight (15) changes the specific number of vibrations of the bearing portion and thereby prevents the development of resonance with the components around the bearing portion in prior consideration of the point of resonance of the bearing portion and the components, whereby a wheel bearing device having excellent vibration absorption performance and durability can be provided.

Description

technical field [0001] The present invention generally relates to a wheel bearing device capable of rotatably supporting a wheel of a vehicle such as an automobile, and more particularly, to a wheel bearing device provided with a vibration damping mechanism in a vibration transmission path. Background technique [0002] A structure has been proposed in which an anti-vibration mechanism is located on a wheel bearing device for mounting a tire wheel or a brake disc, for example, a structure in which a cylindrical vibration-damping material On the part between the inner wheel of the hub wheel and the hub wheel on which the wheel is mounted. For example, if Figure 7 As shown, there has been proposed a vibration damping mechanism in which a vibration damping member 55 formed of an elastic material is inserted between inner rings 51, 52 and outer joints of a constant velocity joint 53 of a double row rolling bearing 50 between the members 54 to suppress the transmission of the v...

Claims

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Application Information

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IPC IPC(8): B60B35/18F16C19/18F16C19/52F16F15/02B60B27/00
CPCF16C19/186F16C19/527F16C2326/02B60B27/0015B60B27/0047F16F15/1442B60B2900/131B60B2900/133B60B27/00B60B35/18F16F15/02
Inventor 重冈和寿须间洋斗西川健太郎关诚
Owner NTN CORP
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