Arc-Segment Bearing Cage Assembly for Large-Diameter Lubrication
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Traditional integral injection molding of large-diameter bearing cages results in dimensional accuracy issues, limited adaptability to different diameters, poor lubrication leading to noise and vibration problems, and high manufacturing and maintenance costs.
Innovation Solution
A segmented cage design using arc-shaped segments with a lubrication structure comprising a lubricant storage groove and guiding groove, allowing for flexible assembly and improved lubrication, and an ellipsoidal pocket shape for reduced vibration and enhanced structural integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If integral injection molding is used for large-diameter bearing cages, then the cage structure is simple, but the dimensional accuracy deteriorates and manufacturing difficulty increases
Solution Approach 1:
The cage is divided into multiple arc-shaped segments that can be manufactured separately using injection molding and then assembled together. This segmentation allows each segment to be produced with high dimensional accuracy using standard equipment, while the complete cage achieves the required large diameter. The segments are designed with connection structures that ensure precise assembly and maintain overall dimensional accuracy.
2Ease of manufacture
If integral injection molding is used for large-diameter bearing cages, then the cage can be manufactured as a single piece, but the adaptability to different bearing diameters deteriorates
Solution Approach 1:
The arc-shaped segments are designed as universal components that can be used across multiple bearing sizes. By varying the number of segments assembled in a circular pattern, cages can be configured for different pitch circle diameters while using the same basic segment design. This multi-functionality allows a single segment type to serve multiple bearing applications, enhancing adaptability without requiring entirely different manufacturing processes.
3Device complexity
If traditional cage design is used, then the structure is simple, but lubrication performance deteriorates causing noise and vibration
Solution Approach 1:
The cage structure incorporates localized lubrication features including lubricant storage grooves positioned at specific locations and lubricant guiding grooves that direct lubricant flow to critical contact areas. This local quality enhancement ensures adequate lubrication at key interfaces without requiring a complete redesign of the entire cage structure. The targeted approach improves lubrication performance and reduces noise and vibration while maintaining overall structural simplicity.
Data Source
AI summary
The present disclosure relates to a cage for a bearing. The cage includes a pocket. A lubrication structure is disposed on the pocket. The lubrication structure includes a lubricant storage groove and/or a lubricant guiding groove. This lubrication structure is especially suitable for the lubrication of large-size cages and large-size bearings. The present disclosure also provides a bearing, which comprises the cage described herein.