Bearing Protection Set for Electrical Isolation Coating
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Solution Overview
Problem
Existing methods for coating bearings with isolating materials like polyamide to prevent electrical current from reaching the inner surfaces of external rings are inefficient, as they require significant workload to clean the internal surfaces and may not ensure thorough protection, leading to potential damage during the coating process.
Innovation Solution
A protection set comprising a prosthesis that fits inside the external ring to cover the inner surface and side covers that attach to the external ring using cover latches, allowing for easy mounting and dismounting without damaging the coating, and featuring masking holes for handling during coating and drying processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the external ring of the bearing is coated with isolating material such as polyamide, then electrical isolation is provided, but the internal surface of the external ring becomes contaminated requiring significant cleaning workload
Solution Approach 1:
A protective coating is applied to the internal surface of the external ring before the bearing is coated with isolating material. This preliminary protective layer prevents the isolating material from adhering to the internal surface during the coating process, eliminating the need for subsequent cleaning operations while maintaining electrical isolation functionality
2Reliability
If the external ring is coated with isolating material to prevent current reaching the balls, then electrical isolation is achieved, but thorough protection of internal surfaces is difficult ensuring complete cleaning is problematic
Solution Approach 1:
A protective coating is applied to the internal surface of the external ring before the bearing is coated with isolating material. This preliminary protective layer ensures complete protection of the internal surface during the coating process, preventing isolating material contamination without requiring subsequent cleaning operations
3Reliability
If protective measures are taken during coating, then internal surfaces are protected, but the coating process becomes more complex
Solution Approach 1:
A protective coating is applied to the internal surface of the external ring before the bearing is coated with isolating material. This simple preliminary step provides effective protection during the coating process without requiring complex protective devices or multi-step procedures, maintaining process simplicity while ensuring internal surface protection
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables efficient protection of the internal surfaces of the external ring during coating, reducing workload and ensuring thorough protection without damaging the coating, applicable to both spraying and dipping methods, and facilitating easy mounting and dismounting.
Implementation Method 1
a prosthesis (2) mounted into the external ring of the bearing (1) such that it completely covers the inner surface (5) of the bearing's external ring
Implementation Method 2
covers (3) that are attached to the external ring (1) of the bearing on both sides of the bearing's external ring (1) in order to fasten the prosthesis (2) to the bearing's external ring (1)
Data Source
Figure 1
Figure 2
Figure 3
AI summary
This invention is related to a protection set using in the production of electrically isolated bearing. The protection set subject to the invention comprises a prosthesis (2) that is fitted inside the external ring (1) of the bearing such that it can completely wrap around the inner surface (5) of the external ring of the bearing and covers (3) which are mounted to the external ring (1) on both sides of the external ring (1) of the bearing in order to be fixed to the bearing external ring (1) of the prosthesis (2).