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Steering knuckle with pre-sealing

A wheel bracket and front seal technology, which is applied in the direction of wheels, hubs, casters, etc., can solve the problems of increasing fuel consumption, and achieve the effects of simple installation, fewer components, and reduced fuel consumption

Inactive Publication Date: 2011-02-02
SCHAEFFLER TECH AG & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A bigger problem arises in the very demanding sealing structure on the transmission side
[0009] In addition, it must be emphasized that measures aimed at increasing the sealing effect of one of the two sealing structures generally lead to an increased frictional moment of the seal or an increased frictional moment of the sealing lip and thus inevitably lead to increased fuel consumption

Method used

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  • Steering knuckle with pre-sealing
  • Steering knuckle with pre-sealing
  • Steering knuckle with pre-sealing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0033] figure 1 A sectional view of a wheel bearing arrangement with two rows of angular contact ball bearings according to the prior art is shown.

[0034] The wheel bearing consists of two rolling element rows 7 , 8 , two inner rings 5 ​​, 6 and an outer ring 10 . A seal 3 is arranged between the transmission-side inner ring 5 and the outer ring 10 , which seal protects the wheel bearing against environmental influences which act via the transmission-side gap 23 between the wheel carrier 31 and the joint cover 2 on wheel bearings. Accordingly, a wheel-side seal 4 is situated between the wheel-side inner ring 6 and outer ring 10 , which seal protects against environmental influences which act via the wheel-side gap 22 between the wheel hub 9 and the wheel carrier 31 on wheel bearings. Compared with the transmission-side gap 23 , the wheel-side gap 22 is in a relatively protected position, in particular because it passes through the wheel flange of the wheel hub 9 or throug...

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PUM

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Abstract

The invention relates to a steering knuckle, which is provided for receiving an outer ring of a wheel bearing, and to a wheel bearing arrangement with such a steering knuckle. The object of the invention is to relieve the sealing arrangements of the wheel bearing by a pre-seal, which is designed as a labyrinth seal and to realize an advantageous sealing effect due to an appropriate gap geometry. To this end, the steering knuckle has a collecting channel, which is provided to capture liquids and dirt particles and to discharge them at the periphery. The bearing seal can be changed by this measure, so that savings are possible with a minimum of sealing action of the conventional sealing arrangement and with greatly reduced friction torque. Overall, the sealing action, which is now achieved by the bearing seal and the pre-seal together, is increased or remains at least at the same level while manufacturing costs are reduced.

Description

technical field [0001] The invention relates to a wheel carrier and a wheel bearing structure with such a wheel carrier, which is provided for receiving the outer ring of the wheel bearing. Background technique [0002] Wheel brackets have found various applications in the automotive field. The function of the wheel carrier within the wheel bearing structure is to firmly connect the wheel bearing to the chassis or body of the commercial vehicle (NKW), passenger car (PKW) or also a motorcycle. [0003] In today's automobile construction, more and more hopes are placed on pre-installed components, which can often be combined, connected or installed with the vehicle in a simpler manner. The same applies to the wheel carrier, into which the wheel bearing unit can generally be integrated and mounted together with the wheel carrier unit. In this case, the wheel bearing unit is connected to the component transmitting the drive torque. Such a component can be a shaft or a joint l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16C33/80B60B27/00
CPCF16C33/805F16C2326/02F16C19/184B60B27/00F16D2003/22326B60B2900/141
Inventor 威廉·沃尔特埃尔温·哈特曼
Owner SCHAEFFLER TECH AG & CO KG
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