Segmented Rolling Bearing Assembly for Thin Vibration-Resistant Fixation
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Solution Overview
Problem
Existing rolling bearings are not thin and easy to handle, as they require stronger fixation to prevent separation during vibrations, which is not adequately addressed by current designs.
Innovation Solution
A rolling bearing design featuring an outer ring and inner ring composed of steel, with multiple sections that have protruding portions and corresponding through holes for secure bonding, eliminating the distinction between components and reducing the number of types needed, enhancing fixation and durability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If the rolling bearing is made thinner, then it becomes more compact and easier to handle, but the fixation strength between components deteriorates due to reduced vibration resistance
Solution Approach 1:
The outer ring is divided into a first outer ring and a second outer ring, and the inner ring is divided into a first inner ring and a second inner ring. These segmented rings are arranged alongside each other in the axial direction and fixed together through protruding portions and through holes, enabling the bearing to maintain structural integrity while reducing overall thickness
Solution Approach 2:
The second outer ring is nested within the first outer ring, and the second inner ring is nested within the first inner ring. The protruding portions of one ring fit into the through holes of the other ring, creating a nested structure that provides strong fixation while minimizing axial thickness
2Device complexity
If the number of component types is reduced, then manufacturing and handling become simpler, but the reliability of fixation during vibrations deteriorates
Solution Approach 1:
The design merges the structure of multiple rings into a unified system where the first and second outer rings and the first and second inner rings form integrated assemblies. This merging reduces the number of distinct component types while maintaining reliable fixation through the protruding portion and through hole configuration that prevents separation during vibrations
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 design provides a thin, easy-to-handle, and highly durable rolling bearing with improved fixation and reduced component complexity, preventing separation during vibrations and ensuring secure adhesion.
Implementation Method 1
The protruding portion and the through hole are fitted together, and the protruding portion and the through hole are bonded to each other
Data Source
AI summary
A rolling bearing includes a steel outer ring, a steel inner ring having a common central axis with the outer ring and disposed on an inner circumference side of the outer ring, and a plurality of rolling elements disposed to be able to roll on an inner circumferential surface of the outer ring and an outer circumferential surface of the inner ring. The outer ring includes a first outer ring and a second outer ring that is arranged alongside the first outer ring in a first axis direction in which the central axis extends and is fixed to the first outer ring. The inner ring includes a first inner ring and a second inner ring that is arranged alongside the first inner ring in the first axis direction and is fixed to the first inner ring. One and the other of opposing portions in the first and second outer rings and in the first and second inner rings have a protruding portion and a through hole corresponding to the protruding portion formed respectively therein. The protruding portion and the through hole are fitted together, and the protruding portion and the through hole are bonded to each other.