Bearing Compression Strap for Ring Distortion Control
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Solution Overview
Problem
Large bearing rings tend to distort under load due to inadequate support, which affects their performance and longevity.
Innovation Solution
A tensioning arrangement comprising a strap with connectors and a tensioner that applies a circumferentially distributed compressive force to the bearing ring, preventing distortion by increasing tension in the strap and thus providing a stable rotational center.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If a large bearing ring is used, then the load capacity is improved, but the bearing ring distorts under load due to inadequate support
Solution Approach 1:
The bearing ring is segmented into multiple sections by introducing circumferential grooves, allowing independent deformation of each segment under load. This segmentation enables the bearing ring to accommodate loading conditions without overall distortion, maintaining structural integrity while supporting large loads.
Solution Approach 2:
The cross-sectional geometry of the bearing ring is changed by introducing circumferential grooves, transforming it from a solid circular section to a segmented section with varying thickness. This parameter change allows the bearing ring to distribute stresses more effectively and prevent distortion under load.
2Force
If the bearing ring is made larger, then the load bearing capability is improved, but the structural stability deteriorates
Solution Approach 1:
The bearing ring is divided into multiple segments through circumferential grooves, allowing each segment to independently support portions of the load. This segmentation maintains structural stability in larger bearing rings by distributing stresses across multiple smaller sections rather than relying on a single large continuous structure.
Solution Approach 2:
The circumferential grooves introduce curved geometries into the bearing ring cross-section, creating a more complex three-dimensional stress distribution pattern that enhances structural stability while maintaining large load-bearing capability.
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
The solution effectively prevents bearing ring distortion under load, enhancing the bearing's performance and lifespan by maintaining structural integrity through controlled compressive forces.
Implementation Method 1
The tensioner also comprises means for applying tension to the strap. In use, the strap is arranged around the bearing ring and a circumferential length of the strap in contact with the bearing ring is reduced, thereby applying compressive force to the bearing ring.
Data Source
AI summary
A tensioning arrangement for a bearing ring, which introduces a compressive force towards a rotational centre of the bearing ring, to prevent the bearing ring distorting as a shaft supported by the bearing turns. The tensioner arrangement includes a strap and a tensioner. The strap has a connector at each end, and tensioner has an element for connecting to the connectors. The tensioner also has an element for applying tension to the strap. In use, the strap is arranged around the bearing ring and a circumferential length of the strap in contact with the bearing ring is reduced, thereby applying compressive force to the bearing ring.