Large-Diameter Rolling Bearing Layout for Radial Stability
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Solution Overview
Problem
Large-diameter rolling bearings face issues with deformation and separation under high radial loads, and existing designs either fail to handle high axial loads and tilting moments or require excessive installation space and assembly steps.
Innovation Solution
A rolling bearing design featuring concentric inner and outer rings with two axial bearings spaced apart axially and a single radial bearing disposed between them, where the radial bearing is positioned between the outer and inner raceways, reducing radial deformation and installation space requirements while supporting high axial loads and tilting moments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a radial bearing is added to counteract deformation under high radial loads, then radial deformation is reduced, but the device complexity and installation space increase
Solution Approach 1:
The patent combines the radial bearing function with the axial bearing structure by positioning the radial bearing between the inner and outer rings in the radial direction, while the two axial bearings are positioned axially between the rings. This integration allows the bearing assembly to handle both radial and axial loads simultaneously, reducing the need for separate radial and axial bearing components and simplifying the overall structure.
2Stability of the object's composition
If two radial bearings are used to support high radial loads, then radial stability is improved, but the installation space and assembly complexity increase
Solution Approach 1:
The patent merges the function of multiple radial bearings into a single radial bearing positioned between the inner and outer rings, while using two axial bearings positioned axially between the rings. This configuration provides equivalent radial stability support with reduced installation space requirements compared to using two separate radial bearings.
3Force
If axial bearings are added to handle high axial loads and tilting moments, then axial load capacity is improved, but the device complexity increases
Solution Approach 1:
The patent segments the bearing function into two axial bearings positioned at different axial locations between the inner and outer rings. This segmentation allows each axial bearing to handle specific portions of the axial load and tilting moment, distributing the mechanical stress and improving overall axial load capacity while maintaining a manageable structure.
Solution Approach 2:
The patent positions the two axial bearings at different axial locations (spaced apart in the axial direction), utilizing the axial dimension to distribute the load handling function. This spatial arrangement in the axial dimension enables the bearing assembly to handle high axial loads and tilting moments effectively without requiring additional radial or circumferential components.
Data Source
AI summary
A rolling bearing provides an inner ring and an outer ring concentrically about a rotation axis X-X′ running in an axial direction, and at least first and second axial bearings each axially disposed between the inner ring and the outer ring and each having at least one row of rolling elements, the first and second axial bearings being spaced apart from each other in the axial direction. The rolling bearing further provides only one radial bearing radially disposed between the inner ring and the outer ring and having at least one row of rolling elements. The radial bearing is disposed between an outer raceway located on the inner ring and an inner raceway located on the outer ring.