Roller Bearing Sealing Ring with Radial Taper for Universal Joint
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing roller bearing designs for universal joints face challenges in reliably sealing the gap between the bearing and the journal, requiring multiple sealing rings and additional measures for mechanical stability, which increases assembly complexity and effort.
Innovation Solution
A roller bearing design featuring a sleeve, rolling elements, a sealing ring, and a disc spring supported on the sealing ring, where the axial distance between the disc spring and rolling elements decreases radially, combined with a support ring for enhanced mechanical stability and adjustable preload, allowing for a single sealing ring to achieve a high sealing effect with reduced mechanical stress.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single sealing ring is used to seal the gap between the roller bearing and journal, then the sealing structure is simplified and assembly effort is reduced, but the mechanical stability and reliability of sealing are insufficient
Solution Approach 1:
The patent combines the sealing ring and support ring into a single integrated component. The support ring provides mechanical stability while the sealing ring provides sealing function, merging two previously separate components into one that achieves both sealing and structural support functions simultaneously.
Solution Approach 2:
The sealing ring is designed to perform multiple functions: sealing the gap between the roller bearing and journal, providing mechanical support for the disc spring, and maintaining structural stability. This multi-functional design eliminates the need for separate support structures.
2Stability of the object's composition
If the sealing ring is made mechanically stable to support the disc spring, then the structural integrity is improved, but the sealing effect is reduced because the sealing lips area lacks mechanical stability
Solution Approach 1:
The sealing ring is divided into distinct functional zones: a sealing lips area with lower mechanical stability optimized for sealing contact, and a support area with higher mechanical stability for supporting the disc spring. This segmentation allows each area to be optimized for its specific function without compromising the other.
Solution Approach 2:
Different regions of the sealing ring have different mechanical properties tailored to their specific functions. The sealing lips area has properties optimized for sealing (softer, more compliant), while the support area has properties optimized for mechanical stability (harder, more rigid).
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
This design ensures reliable sealing with minimal effort, providing a high sealing effect while maintaining mechanical stability, reducing the need for multiple sealing rings and simplifying assembly, and optimizing the interaction between sealing properties and mechanical stability.
Implementation Method 1
a disc spring (7) on which the rolling elements (6) run axially and which is axially supported on the sealing ring (8)
Implementation Method 2
the sealing ring (8) and a disc spring (7)... ensures reliable sealing of the gap between the roller bearing and the journal... prevent the lubricant stored inside the bearing from escaping and on the other hand prevent or at least reduce to an acceptable level the penetration of contaminants
Data Source
Figure 1~2
AI summary
The invention relates to a rolling bearing (2) for the rotatable support of a journal (3). The rolling bearing (2) according to the invention comprises a sleeve (4), rolling elements (6) which roll in the sleeve (4), a sealing ring (8), and a disc spring (7) against which the rolling elements (6) axially run and which is axially supported on the sealing ring (8). The special feature of the rolling bearing (2) according to the invention is that the axial distance between the disc spring (7) and the rolling elements (6) decreases radially outwards, at least in certain regions.