Combined insulator and conductor assembly for bearings with clip mounted conductors
By designing a combined insulator and conductor assembly, and utilizing ring insulators and conductive fibers to provide an alternative path, the problem of damage caused by current passing through the bearing was solved, thus achieving bearing protection and safe current conduction.
CN113719535BActive Publication Date: 2026-07-03AB SKF SKF PATENT DEPARTMENT
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- AB SKF SKF PATENT DEPARTMENT
- Filing Date
- 2021-05-20
- Publication Date
- 2026-07-03
AI Technical Summary
Technical Problem
In the prior art, the passage of current or charge through the bearing raceway can cause bearing damage, and an alternative path is needed to prevent such damage.
Method used
A combined insulator and conductor assembly was designed, comprising a ring-shaped insulator and a conductor. The insulator prevents current from flowing between the outer ring of the bearing and the housing, while the conductor provides an alternative path for current to flow from the shaft to the housing via conductive fibers.
Benefits of technology
It effectively prevents current from passing through the bearing, protecting the bearing from damage, while providing a safe conductive path for the current and avoiding the formation of bearing voltage differences.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN113719535B_ABST
Abstract
An assembly comprising an electrical insulator and a conductor is provided for a bearing that can be disposed between a shaft and a housing. An annular insulator is disposed around the bearing and configured to prevent current flow between the outer ring and the housing. The electrical conductor has a retainer, a radially outer end, and a radially inner end, the retainer being releasably engaged with the insulator to connect the conductor to the bearing. The radially outer end and / or a portion of the conductor located between the outer and inner ends is electrically engaged with the housing, and the radially inner end is electrically engaged with the shaft to provide a conductive path between the shaft and the housing. Preferably, the conductor comprises: a conductive disc having an arcuate retainer clip that engages with an insulator groove of the insulator; and a brush assembly including conductive fibers engaged with an outer surface of the shaft.
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