Sealing assembly for a rolling bearing

A technology for sealing devices and rolling bearings, which is applied to rolling contact bearings, engine seals, and rotating bearings, etc. It can solve problems such as elastic body wear and achieve the effect of saving materials

Active Publication Date: 2013-04-17
SCHAEFFLER TECH AG & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Sealing arrangements of the prior art have the disadvantage that environmental influences can act directly on the sealing lip from the outside, wherein the material of the sealing lip, in most cases the elastomer, wears out very quickly

Method used

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  • Sealing assembly for a rolling bearing
  • Sealing assembly for a rolling bearing
  • Sealing assembly for a rolling bearing

Examples

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Embodiment Construction

[0032] figure 1 A three-part seal with cover part 10 is shown. The sealing device has a frictionless pre-seal which is designed as a labyrinth seal and is formed by the contact part 14 , the first bearing part 30 and the cover part 10 . In this case, the cover part 10 is embodied as a cold-formed plate, wherein an annular opening 50 is arranged at the end of the hollow-cylindrical section 52 , which opens into the first collecting groove 12 of the contact part 14 . Alternatively, the cover part 10 can also consist of plastic or be machined as a turned part. Furthermore, the cover part 10 has a fastening part 47 which is fastened by means of a press fit to the outer surface of the first bearing part 30 embodied as an outer ring.

[0033] The outer ring forms, for example, at least part of the hub 30 , whereby the cover part 10 becomes a kind of centrifugal plate from which water escapes radially and away from the opening 50 during rotational operation. The water and dirt par...

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PUM

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Abstract

The invention relates to a sealing assembly for sealing a rolling bearing, in particular a wheel bearing, between a first (30, 32) and a second bearing part (32), wherein both bearing parts are rotatable relative to each other and form both an axial intermediate chamber (61) and a radial intermediate chamber (60) in relation to a common axis of rotation, wherein the sealing assembly comprises the following: a contact part (14, 24) having a preferably hollow-cylindrical fastening piece (37, 40) for fastening and a ring-shaped contact piece (41, 43) for positioning the contact part on the second bearing part, and a carrier (39, 45) which can be fastened to the first bearing part, having an elastic part (13, 23) forming a first axial sealing lip (17, 29) and / or a radial sealing lip (19, 36). The teachings according to the invention show how the service life and the sealing performance can be increased cost-effectively. According to the invention, the contact part forms a first catch channel (12, 22) with a radially extending part of the second bearing part, wherein an end piece (34, 44) of the contact part partially defines an opening 50, 51 which leads into the first catch channel. It is thus possible according to the invention to establish a labyrinth seal as a pre-seal which contributes to sealing without additional friction losses.

Description

technical field [0001] The invention relates to a sealing arrangement for sealing a rolling bearing, in particular a wheel bearing, between a first bearing part and a second bearing part, wherein the two bearing parts are rotatable relative to each other and about a common axis of rotation Not only the axial intermediate space is formed, but also the radial intermediate space is formed, wherein the sealing device comprises the following: [0002] - a contact part with a preferably hollow cylindrical fixture for fixing and an annular contact part for positioning the contact part on the second support part; [0003] - A carrier part, which can be fastened to the first bearing part, with an elastic part which forms the first axial sealing lip and / or the radial sealing lip. Background technique [0004] Sealing arrangements with kneading sealing contacts with axial and radial sealing lips are typically used for sealing rolling bearings, where the two bearing parts to be sealed ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16C33/78F16J15/32
CPCF16C33/7863F16C2326/02F16J15/3264F16C33/7886F16C19/00F16C33/805B60B27/0073F16C33/785F16C33/7853F16C33/7889F16C33/7896F16C33/78F16J15/32
Inventor 亚历山大·黑普威廉·沃尔特
Owner SCHAEFFLER TECH AG & CO KG
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