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Wheel hub bearing assemblies

A technology of wheel hub bearing and assembly, applied in the direction of wheel bearing, bearing element, wheel hub, etc., can solve the problems of increasing the friction of the sealing device and detrimental performance of the wheel hub bearing assembly.

Active Publication Date: 2021-04-02
AB SKF
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

These additional sealing lips are generally contact lips, that is to say lips which are arranged in direct sliding contact with the second shield or with the inner ring, however, although on the one hand an increased number of lips supported by the first shield improves The sealing ability of the sealing device is improved, but on the other hand the presence of multiple contact lips also increases the friction generated by the sealing device, which may be detrimental to the performance of the corresponding hub bearing assembly

Method used

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  • Wheel hub bearing assemblies

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Embodiment Construction

[0022] refer to figure 1 , Numeral 10 represents the whole of the wheel hub bearing assembly, which has an axis of rotation A and includes: a bearing outer ring 20; a bearing inner ring 30, which together with the outer ring 20 defines an intermediate space (interspace) 40; and a plurality of rolling bearings The body 50 is interposed between the outer ring 20 and the inner ring 30 to enable the outer ring 20 to rotate relative to the inner ring 30 .

[0023] For the purpose of mounting (on the inner ring) a (known and not shown) wheel, the inner ring 30 is provided with a flange 31 transverse to the axis of rotation A and axially towards the inside by an annular mounting surface 32 limited.

[0024] The outer ring 20 may be coupled to a fixed element of the vehicle, such as a suspension strut, and is axially delimited by a front annular surface 21 transverse to the axis A, (and the front annular surface 21 ) together with the annular mounting surface 32 of the flange 31 def...

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Abstract

A hub-bearing assembly having an axis of rotation and provided with an outer ring and an inner ring that define between them an interspace. The inner ring is provided with a flange that is transverse to the axis, and a sealing device being interposed between the outer ring and the inner ring and being provided with a moving sealing lip that is integral with the flange with the interposition of a second sealing shield, and which is directed towards a front annular surface of the outer ring.

Description

technical field [0001] The present invention relates to hub bearing assemblies for vehicle wheels. Background technique [0002] Known hub bearing assemblies have an axis of rotation and include: [0003] - a bearing outer ring radially bounded by a cylindrical outer surface coaxial with said axis of rotation and having shaped grooves formed throughout said cylindrical outer surface, axially defined by said axis of rotation transverse to said axis of rotation and The cylindrical outer surface is defined by an adjacent annular outer surface; [0004] - a bearing inner ring which, together with the outer ring, delimits an interspace and is provided with a flange transverse to said axis of rotation; and [0005] - sealing means between the outer ring and the inner ring to prevent any impurities from entering the hub bearing assembly through the intermediate space, and further comprising: [0006] - a first sealing shield integral with the outer ring and supporting a sealing ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16C33/78B60B27/00B60B27/02
CPCB60B27/00B60B27/02B60B2380/00F16C33/7823F16C33/7883F16C33/7889F16C2326/02B60B27/0073F16C19/14F16C33/7826F16C33/7879F16C33/80F16C33/805
Inventor 毛里奇奥·贝尔托拉达尼埃莱·杜赫
Owner AB SKF
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