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Sealing assembly and bearing device

A technology of sealing components and bearing devices, applied in the field of bearing sealing, can solve the problems of loose seals, reduced extrusion force of seals, failures, etc.

Inactive Publication Date: 2021-05-18
SCHAEFFLER TECH AG & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for example, in tapered roller bearings used in truck wheels, when the load on the bearing increases, a gap may develop between the two bearing rings, and the gap will increase with the load, causing the seal to be damaged. The extrusion force is reduced, resulting in loosening and seal failure

Method used

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  • Sealing assembly and bearing device
  • Sealing assembly and bearing device
  • Sealing assembly and bearing device

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Experimental program
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Embodiment Construction

[0019] Specific implementations of the sealing assembly and the bearing device according to the present invention will be described below with reference to the accompanying drawings. The following detailed description and drawings are used to illustrate the principles of the present invention. The present invention is not limited to the described preferred embodiments, and the protection scope of the present invention is defined by the claims.

[0020] Embodiments according to the invention provide a seal assembly having improved sealing effectiveness, eg forming part of a multi-row tapered roller bearing. figure 1 A partial axial sectional view of a multi-row tapered roller bearing including the seal assembly is shown. Such as figure 1 As shown, the multi-row tapered roller bearing includes an outer ring 1 , a first inner ring 2 , a second inner ring 3 and a plurality of rollers 4 . Wherein, the outer ring 1 , the first inner ring 2 , and the second inner ring 3 are annular...

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Abstract

The invention relates to a sealing assembly for static sealing and a bearing device. The sealing assembly comprises a sealing ring and a plurality of annular parts, wherein the plurality of annular parts are arranged in an aligned manner in the axial direction; two adjacent annular parts are provided with corresponding boss parts formed on the radial sides of the axial ends separately, the axial ends of the two adjacent annular parts abut against each other, and an annular mounting groove for mounting the sealing ring is formed between the two adjacent boss parts; and the sealing ring is provided with an annular main body part and at least two sealing lips extending from the main body part to the two axial sides separately. The sealing assembly and the bearing device disclosed by the invention have good sealing performance.

Description

technical field [0001] The invention relates to the technical field of bearing sealing. In particular, the invention relates to a seal assembly for static sealing and a bearing arrangement comprising such a seal assembly. Background technique [0002] Bearings are a common supporting member in various industrial fields. Since lubricating oil is used to reduce friction, various seals are often installed to prevent the lubricating oil from leaking. There are both types of seals for dynamic sealing between the inner and outer rings, and types for static sealing between side-by-side bearing rings. For example, in tapered roller bearings (TRB) it is often necessary to install seals for static sealing. Tapered roller bearings are used to bear combined radial and axial loads, and are often assembled in pairs to achieve their functions, or directly manufactured into double-row, four-row or multi-row forms. In a multi-row tapered roller bearing there are usually multiple bearing i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16C33/78F16C33/60
CPCF16C33/60F16C33/767F16C33/768F16C33/7813F16C33/7823
Inventor 刘鑫张岳林张叶舟李定宫铭
Owner SCHAEFFLER TECH AG & CO KG