Split Bearing Ring Seal Structure for Stable Joint Sealing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional split-ring bearings face challenges in maintaining effective sealing due to the shifting of O-rings between ring parts, especially in narrow designs, which compromises the sealing effect and complicates seal placement.
Innovation Solution
The implementation of an annular seal within axially extending recesses in the split ring parts, with a cylinder jacket-shaped seal that forms a flat ring, and radially extending sealing lips to enhance sealing and tolerance insensitivity, along with through-openings for lubricant management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an O-ring seal is placed between the first ring part and the second ring part, then sealing is provided, but the seal can shift which reduces the sealing effect
Solution Approach 1:
The seal is nested within axially extending recesses formed by recess portions in both the first and second ring parts. This nesting arrangement constrains the seal axially between the ring parts, preventing radial and axial shifting while maintaining the sealing effect between the split ring parts.
2Reliability
If a seal is placed between the bearing ring parts, then sealing is achieved, but in narrow bearings there is little space making placement complicated or impossible
Solution Approach 1:
The seal arrangement transitions from a conventional radial placement between ring parts to an axial placement within recesses. The seal extends axially into recess portions of both ring parts, utilizing the axial dimension to achieve sealing in narrow bearings where radial space is limited, thereby simplifying placement while maintaining sealing effectiveness.
3Reliability
If the seal is designed to extend axially into recess parts, then sealing efficacy is improved, but the device complexity increases
Solution Approach 1:
The recess structure is segmented into a first recess portion in the first ring part and a second recess portion in the second ring part. Each recess portion independently receives and constrains the seal, distributing the sealing function across both ring parts and simplifying the overall structure while maintaining sealing efficacy.
Data Source
Figure 1~3
Figure 4~5
Figure 6~9
AI summary
A bearing (1) is disclosed comprising a first ring (2, 3), a second ring (4), and rolling elements (6) arranged between the rings (2, 3, 4), wherein the first ring (2, 3) is a split ring with a first ring part (2) and a second ring part (3), wherein an annular seal (8) is arranged in a butt region (5) between the first ring part (2) and the second ring part (3), wherein the first ring part (2) and the second ring part (3) have an axially extending recess (9) in the butt region (5), wherein the recess (9) is formed by an axially extending recess part (9) in the first ring part (2) and an axially extending recess part (9) in the second ring part (3), and wherein the annular seal (8) is cylindrical and extends axially into the recess part (9) of the first ring part (2) and the The recess part (9) of the second ring part (3) is arranged extending.