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Bearing device for wheel

A technology for bearing devices and wheels, which is applied in the direction of bearings, axles, wheels, etc., can solve problems such as easy loosening of bolts, achieve the effect of improving strength and not generating abnormal noise

Inactive Publication Date: 2013-02-13
NTN CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, it is easy to loosen at the joint part of the bolt

Method used

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  • Bearing device for wheel
  • Bearing device for wheel
  • Bearing device for wheel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0099] Below, refer to figure 1 ~ Figure 21 illustrates an embodiment of the present invention. figure 1 A bearing device for a wheel according to the first embodiment is shown, and the bearing device for a wheel is formed by integrally integrating a hub 1 , a multi-row rolling bearing 2 and a constant velocity universal joint 3 .

[0100] The constant velocity universal joint 3 includes an outer ring 5 as an outer joint member, an inner ring 6 as an inner joint member disposed inside the outer ring 5 , and a plurality of joints sandwiched between the outer ring 5 and the inner ring 6 to transmit torque. The balls 7 and the cage 8 holding the balls 7 sandwiched between the outer ring 5 and the inner ring 6 are composed as main components. The inner ring 6 is spline-fitted by press-fitting the end portion 10 a of the shaft 10 into the inner diameter 6 a of the shaft hole, and coupled to the shaft 10 so that torque can be transmitted. In addition, a stop ring 9 for preventin...

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PUM

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Abstract

A bearing device for a wheel, in which circumferential play is suppressed, which facilitates connection between a hub ring and an outer coupling member, in which a reduction in NVH characteristics dueto play at a joint between the hub ring and the constant velocity universal joint and by play between a bearing outer member and a knuckle is prevented, and which performs highly accurate transmission of rotational torque. The bearing device has a groove-ridge fitting structure (M) by which the hub ring (1) and a shaft section (12) of the outer coupling member of the constant velocity universal joint (3) are integrated together, and the shaft section (12) is fitted in a hole (22) of the hub ring (1). In the groove-ridge fitting structure (M), ridges (35) on the outer diameter surface of the shaft section (12) and grooves (36) in the inner diameter surface (37) of the hub ring (1) are fitted to each other in a fitting contact portion (38), and the ridges (35) and the grooves (36) are in intimate contact with each other in the entire fitting contact portion (38).

Description

technical field [0001] The present invention relates to a wheel bearing device for rotatably supporting a wheel on a vehicle body of a vehicle such as an automobile. Background technique [0002] Bearing devices for wheels have developed from the single-use multi-row rolling bearing structure called the first generation to the second generation with the body mounting flange integrated on the outer part, and further developed to the hub ring with the wheel mounting flange integrated In the third generation, an inner raceway surface with multiple rows of rolling bearings is integrally formed on the outer periphery of the wheel. Finally, the constant velocity universal joint integrated into the hub ring is developed, and the outer periphery of the outer joint member constituting the constant velocity universal joint is integrally formed. The fourth generation of the other inner raceway with multiple rows of rolling bearings. [0003] For example, Patent Document 1 describes a ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60B35/14B60B35/18F16C35/063F16C19/18
CPCY02T10/86
Inventor 鸟居晃河村浩志山内清茂小泽仁博中川亮浅野祐一梅木田光藏久昭友上真
Owner NTN CORP
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