Bearing Cage Segment Assembly Using Semi-Finished Metal Profiles
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Solution Overview
Problem
Existing methods for manufacturing rolling-element bearing cages are complex and costly, especially for large bearings, due to high material usage and the need for multiple manufacturing methods.
Innovation Solution
A cage segment for rolling-element bearing cages is designed using semi-finished metal profiles, such as bar stock, which can be easily cut and connected to form a receptacle for rolling elements, reducing material usage and manufacturing complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If traditional manufacturing methods (bulk material rolling and machining) are used for large bearing cages, then manufacturing precision and structural integrity are improved, but device complexity and manufacturing cost increase due to multiple manufacturing methods and complex machining processes
Solution Approach 1:
The cage is divided into multiple cage segments (first cage segment, second cage segment, etc.), each formed from separate semi-finished profiles. These segments are then connected using connecting elements to form the complete cage structure. This segmentation allows each segment to be manufactured independently using simple processes while maintaining overall manufacturing precision through standardized connection interfaces.
2Strength
If fiberglass-reinforced plastic is used for bearing cages, then temperature resistance and strength are improved, but material cost increases significantly due to high price per kilogram
Solution Approach 1:
The cage structure combines different materials strategically: semi-finished profiles made from cost-effective materials (such as metal or plastic) are used for the main cage segments, while connecting elements may be made from different materials optimized for their specific function. This composite approach reduces overall material cost while maintaining the strength and temperature resistance required for bearing cage application.
3Weight of moving object
If metal bar stock is used for cage segments, then weight is reduced compared to traditional materials, but manufacturing complexity increases due to cutting and assembly requirements
Solution Approach 1:
The cage segments are formed from pre-manufactured semi-finished profiles that already have the required cross-sectional shape and dimensions. These semi-finished profiles are available in standard forms that can be directly cut to length and assembled, eliminating the need for complex machining operations during cage manufacturing. This preliminary preparation of semi-finished materials significantly improves ease of manufacture while maintaining the weight advantages of metal materials.
Data Source
AI summary
A single-pocket cage segment of a multipart rolling-element bearing cage includes first and second side walls connected by first and second end walls. At least one of the first and second side walls or at least one of the first and second end walls is a semi-finished profile. The semi-finished profile may include a longitudinal channel in which a portion of an auxiliary body and/or a portion of a connector may be inserted.