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Bearing assembly

一种轴承、轴承腔的技术，应用在轴承元件、轴承、球轴承等方向，能够解决不能保证轴承绝对密封等问题，达到提高效率的效果

Active Publication Date: 2017-02-15
AB SKF
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, although the labyrinth seal is small, because the ingress of foreign matter is still possible, the labyrinth seal cannot guarantee the absolute sealing of the bearing

Method used

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Examples

Experimental program
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Embodiment Construction

[0050] Unit A comprises a bearing 1 with a central axis X1 provided with an outer ring 2 , an inner ring 3 , a row of rolling bodies 4 (in this case, balls). The rolling bodies are arranged in parallel planes and are each held by cages 5 . This unit is designed to be installed in a housing provided in the mechanical system (not shown).

[0051] In normal operation mode, the outer ring 2 and the inner ring 3 are coaxial with the central axis X 1 .

[0052] The outer ring 2 has a cylindrical outer surface 21 and a bore 22 in which a raceway for the rolling elements 4 is formed.

[0053] The inner ring 3 has a cylindrical outer surface 31 in which raceways for the rolling elements 4 are formed.

[0054]The inner ring 3 may be rotating and the outer ring 2 non-rotating, or vice versa, or the two inner and outer rings may be rotatable relative to each other.

[0055] The outer ring 2 is axially bounded by two radial side edges 23 and 24 and the inner ring 3 is axially bounded by...

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PUM

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Abstract

A bearing assembly including a bearing having a first ring with a hole, two front edges and an outer cylindrical surface, and a second ring with a hole, two radial edges and an outer cylindrical surface is provided. The first and second rings rotate relatively about a central axis. The bearing includes at least one row of rolling elements housed in a chamber formed between an outer cylindrical surface and a hole of the rings, the first and second rings and the rolling elements determining a pitch diameter of the bearing. A sealing means is provided having an engagement portion rigidly connected to one of the rings and a tapered annular body extending from the engagement portion towards the other ring. When idle, the body forms a non-zero angle with a plane perpendicular to the pitch diameter and is in direct or indirect contact with the other bearing ring.

Description

technical field [0001] The invention relates to bearing units. Background technique [0002] Bearings generally include an inner ring and an outer ring that rotate relative to each other. The inner and outer rings may together form a bearing cavity in which rolling elements such as balls, needles or rollers are accommodated. [0003] Bearings are designed to be mounted in the housing of a mechanical system, in particular between a static mechanical element and a rotationally moving mechanical element to support their relative rotation. [0004] Bearings are equipped with seals to ensure that the bearing is sealed, preventing foreign matter such as particles, pollutants or water from entering the bearing cavity. These sealing means may comprise seals firmly connected to one of the inner and outer rings, preferably a rotating ring, and in sliding contact with the other ring. [0005] However, friction between the seal and ring during bearing rotation results in a frictional...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16C33/78
CPCF16C33/7816F16C33/783F16C19/06F16C33/7823F16C33/7863F16C33/7886F16C35/07F16C2208/60F16C2300/02
Inventor 弗兰克·贝伦斯
Owner AB SKF
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