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Electrical insulating device for bearings

一种绝缘装置、轴承的技术，应用在轴承领域，能够解决损坏等问题

Active Publication Date: 2019-08-02
AB SKF
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In either case, when current passes through the bearing, damage to (components of) the bearing may occur

Method used

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  • Electrical insulating device for bearings
  • Electrical insulating device for bearings
  • Electrical insulating device for bearings

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Embodiment Construction

[0019] Certain terms are used in the following description for convenience only and not for limitation. The words "inwardly", "inwardly" and "outwardly", "outwardly" refer to directions toward and away from, respectively, the designated centerline or geometric center of the element being described (the specific meaning will be apparent from the context of the description). Furthermore, as used herein, the words "connect" and "coupled" are each intended to include a direct connection between two elements without any other elements intervening and between elements with one or more other elements intervening. indirect connections between them. Terminology includes the words specifically mentioned above, derivatives thereof and words of similar import.

[0020] Referring now to the drawings in detail, in which like reference numerals are used to represent like elements throughout, in Figure 1-Figure 13 shows an insulation device 10 for a bearing 12, wherein the bearing 12 can b...

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Abstract

An insulating device is for a bearing mountable within a housing and includes a generally annular metallic body configured to couple with an outer ring of the bearing so as to be mounted to the bearing when the bearing is separate from a housing. The body includes an axial portion, the axial portion having an inner circumferential surface disposeable about the outer ring outer surface and an opposing outer circumferential surface, and first and second radial portions each disposeable against a separate one of the outer ring axial ends. At least one oxide layer is formed on at least one of theinner and outer circumferential surfaces of the body axial portion so as to substantially prevent electrical flow between the bearing and the housing.

Description

technical field [0001] This invention relates to bearings, and more particularly to bearings for electrical equipment such as electric motors and generators. Background technique [0002] Bearing assemblies are well known and generally include: an inner ring, an outer ring, and rolling elements ( / rolling elements) between the inner ring and the outer ring, or (comprising) inner and outer members with relatively sliding surfaces. In either case, damage to (components of) the bearing may occur when current passes through the bearing. In order to prevent the flow of such currents, bearing rings have been provided with insulating coatings, or bearings have been provided with rolling elements formed of non-conductive materials such as ceramics. Contents of the invention [0003] In one aspect, the invention relates to an insulating device for a bearing mountable in a housing, said bearing having an inner ring and an outer ring and a plurality of rolling elements arranged betwe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16C19/16F16C33/58F16C33/30
CPCF16C19/16F16C33/583F16C33/30F16C19/52H02K5/16F16C2380/00F16C33/62F16C2223/30F16C41/002
Inventor 伊戈尔·多雷斯庭马蒂厄·休伯特卡尔·普雷斯
Owner AB SKF
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