Table of Contents
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What are Bearings?
A machine element that constrains relative motion to only the desired motion
Reduces friction between moving parts
Provides free linear movement of the moving part or for free rotation around a fixed axis; or, it may prevent a motion by controlling the vectors of normal forces that bear on the moving parts
Experience loads in two basic directions
Characteristics of Bearings
General Bearing Terminology
Inner and Outer Race
Made From high-purity chrome allow
The rings have either a groove or track that allows the a ball bearing or a roller bearing to sit in
Retainer/Cage
Guides the rolling elements and keeps them spaced out
Typically made from steel
Rolling Elements
Can be either balls bearings or roller bearings
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Types of Rolling Elements |
Radial/ Axial Forces
Radial forces are applied along the radius of the bearing or perpendicular to the shaft
Axial forces are applied along the axle through the bearing
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Radial and Axial Force Diagram |
Bearing Diagram
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| Exploded View of Bearing |
Additional Readings
Bearing Use Cases
Some uses for bearing are shown in the picture below
- Fidget Spinner
- Conveyor System
- Car Engine
- Drill Motor
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| Bearing Use Cases |
References
List of Contributors:
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