Bearing Installation Unit With Segmented Outer Rings
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Solution Overview
Problem
Existing methods for installing wheel bearings, particularly tapered roller bearings, are inefficient and costly due to the complexity and high production costs associated with using a common one-piece outer ring for multiple bearings.
Innovation Solution
A one-piece carrier configured to house two separate rolling-element bearings with individual outer rings and a spacer ring to maintain axial distance, allowing for a simple and cost-effective installation of two bearings within a single housing unit, along with a method for inserting the bearing unit into the housing using a guide surface and centering element.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a common one-piece outer ring is used for multiple bearings, then the structural integrity and alignment of multiple bearings are improved, but the production cost and device complexity increase
Solution Approach 1:
The patent divides the bearing assembly into separate outer rings for each rolling-element bearing, rather than using a single common outer ring. Each outer ring is independently manufactured and then assembled together with spacers to form the complete bearing unit, reducing production costs while maintaining structural integrity through precise spacing and alignment features.
2Ease of manufacture
If individual outer rings are used for each bearing, then the production cost decreases due to increased production volumes, but the alignment and spacing maintenance between bearings becomes more difficult
Solution Approach 1:
The patent introduces spacers as intermediary components between the individual outer rings. These spacers maintain precise axial spacing and alignment between the outer rings during assembly and operation, ensuring that each bearing is properly positioned without requiring complex machining or alignment procedures.
Solution Approach 2:
The patent combines multiple individual bearings with their respective outer rings and spacers into a single integrated bearing unit that is pre-assembled and pre-aligned. This merged unit is then installed as one component into the housing, simplifying the installation process while maintaining the manufacturing advantages of individual outer rings.
3Ease of operation
If multiple bearings are installed separately into the housing, then the installation flexibility is improved, but the installation time and efficiency decrease
Solution Approach 1:
The patent performs preliminary assembly of the bearing unit by pre-installing the rolling-element bearings onto the inner ring, positioning the spacers, and securing the outer rings and seals before the final installation into the housing. This pre-assembly is done in a controlled environment where precision alignment can be achieved, and the complete unit is then installed as one component, significantly reducing installation time while maintaining flexibility.
4Device complexity
If a common outer ring is used for multiple bearings, then the number of components is reduced, but the production volume of individual outer rings decreases leading to higher production costs
Solution Approach 1:
The patent segments the bearing assembly into multiple independent outer rings, each designed to fit standard bearing sizes. This segmentation allows each outer ring to be manufactured in high volumes as standalone components or in sets, achieving economies of scale that reduce production costs compared to manufacturing a single custom common outer ring for multiple bearings.
Data Source
AI summary
An installation unit for installing a bearing unit includes a carrier having an interior and the bearing unit mounted in the interior. The bearing unit includes a first rolling-element row and a second rolling-element row, and both the first rolling-element row and the second rolling-element row are at least partially disposed inside the carrier. The bearing unit is slidingly mounted in the carrier such that, when an end opening of the carrier is aligned with an opening in a bearing housing, applying a force against the bearing unit will slide the bearing unit out of the carrier and into the opening in the bearing housing. Also, a method of installing the bearing unit in the opening in the housing using the installation unit.