Sealing arrangement for a wheel bearing arrangement of a motor vehicle
A technology of sealing device and supporting device, which is applied to the sealing of the engine, the bearing of the rotating motion, the wheel, etc., can solve the problems of high cost, extra cost, corrosion of the bottom layer, etc., and achieve the effect of small construction space and favorable cost.
Active Publication Date: 2020-08-28
AUDI AG
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- Application Information
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Problems solved by technology
This has proven to be disadvantageous because the grinding process required for this results in additional costs and thus no free choice of geometry, since the grinding wheel has to be guided radially inwards to the axis of rotation of the wheel support
The variants in which the sealing lip works around the stainless steel centrifugal plate have also proven to be disadvantageous, since in order to fasten the stainless steel centrifugal plate to the hub, a polished, long, cylindrical press fit is usually required, which is also cost-intensive in production
A further disadvantage of this variant is that the centrifugal plate requires a relatively large construction space both axially and radially and that underlayer corrosion can occur during static press-fitting
Method used
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Embodiment Construction
[0022] FIG. 1 shows a wheel mounting of a motor vehicle, generally designated with reference numeral 10 . The hub 12 is rotatably mounted in a known manner via roller bearings 14 . The hub 12 itself is in drive connection with a cardan shaft 18 .
[0023] As shown in FIGS. 1 and 2 , between the rotating part of the wheel support 10 (here the hub 12 ) and the stationary part of the wheel support 10 (here the fixed bearing ring 14 - 1 of the rolling bearing 14 ) There is a seal generally indicated by the reference number 100 .
[0024] The sealing device 100 comprises a sealing body 110 formed from an elastomer, which is supported on a fixed bearing ring 14 - 1 of the rolling bearing 14 and has two sealing lips 112 . As can be seen in particular from FIG. 2 , the sealing lip 112 rests under preload on a centrifugal plate 114 made of stainless steel, which is arranged in the groove 20 of the hub 12 and is inseparable from the hub 12 . The way of relative rotation is fixed. Th...
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Abstract
The invention relates to a sealing arrangement (100) for a wheel bearing arrangement (10) of a motor vehicle, comprising a sealing body (110) having a sealing lip (112), the sealing body (110) being arranged on a stationary component (14-1) of the wheel bearing arrangement (10) and the sealing lip (112) resting against a sealing surface (116) of a rotating component (12) of the wheel bearing arrangement (10). The invention is characterized in that a film (118) is applied to the sealing surface (116).
Description
technical field [0001] The invention relates to a sealing arrangement for a wheel bearing of a motor vehicle of the type specified in the preamble of claim 1 . Background technique [0002] As is known, the wheel bearings of motor vehicles are usually equipped with a sealing device which acts between the fixed part of the wheel bearing and the rotating part of the wheel bearing and usually comprises a sealing body with a sealing lip which It is arranged on the stationary part of the wheel bearing, while the sealing lip bears against a sealing surface formed on the rotating part of the wheel bearing. Just as an example reference DE 101 32 429 A1. [0003] Depending on the design of the wheel bearing, the sealing lip of the sealing body can either work directly against or around the wheel hub or against or around the stainless steel centrifugal plate. A prerequisite for maintaining the sealing effect here is that the sealing surface against or around which the sealing lip wo...
Claims
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IPC IPC(8): F16J15/324B60B27/00F16C33/78F16J15/3264
CPCF16C2240/60F16C2223/32B60B27/0073F16C33/7826F16C33/7886F16C33/805F16J15/324F16J15/3264F16C2326/02F16C19/186F16C2240/54
Inventor J·阿尔布尔M·弗里希
Owner AUDI AG