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Common terms and definitions for roller bearings
**Common Terms and Definitions of Roller Bearings**
Home > Bearing Knowledge > Common Terms and Definitions of Roller Bearings
*Source: China Bearing Network | April 23, 2013*
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Roller bearings are essential mechanical components used in a wide range of industrial applications. They are designed to reduce friction and support loads, making them crucial for the smooth operation of machinery. Below are some common terms and definitions related to roller bearings:
1. **Roller Bearing**
A type of bearing that uses cylindrical or tapered rollers to support loads. The rolling elements help distribute the load evenly across the bearing.
2. **Radial Roller Bearing**
A bearing that primarily supports radial loads. It consists of rolling elements that are arranged in a circular path between the inner and outer races.
3. **Cylindrical Roller Bearing**
A radial bearing that uses cylindrical rollers as the rolling elements. These bearings are ideal for high-speed and heavy-load applications.
4. **Tapered Roller Bearing**
A radial bearing with conical rollers that allow it to handle both radial and axial loads. It is commonly used in automotive and industrial applications.
5. **Needle Roller Bearing**
A bearing with long, thin rollers that have a small diameter. These bearings are suitable for applications where space is limited but high load capacity is required.
6. **Drawn Cup Needle Roller Bearing**
A bearing made with a thin-walled outer ring, often without an inner ring. It is typically used in compact designs where axial movement is minimal.
7. **Spherical Roller Bearing (Convex)**
A self-aligning bearing that uses convex-shaped rollers. It can accommodate misalignment and is ideal for heavy-duty applications.
8. **Concave Roller Bearing**
A bearing that uses concave-shaped rollers. It is designed to provide stability under high loads and maintain alignment.
9. **Spherical Roller Bearing**
A self-aligning bearing that can accommodate both radial and axial loads. It features a spherical raceway on either the inner or outer ring, allowing for slight misalignment.
10. **Crossed Roller Bearing**
A bearing with a single row of rollers that are crossed at 90 degrees. This design allows it to handle loads in two directions simultaneously.
11. **Thrust Roller Bearing**
A bearing designed to handle axial loads. It uses rollers to transfer forces along the axis of rotation.
12. **Cylindrical Thrust Roller Bearing**
A thrust bearing that uses cylindrical rollers. It is suitable for applications requiring high axial load capacity.
13. **Tapered Thrust Roller Bearing**
A thrust bearing with conical rollers that can support both radial and axial loads in one direction.
14. **Needle Thrust Roller Bearing**
A thrust bearing that uses needle-shaped rollers. It is compact and ideal for applications with limited space.
15. **Spherical Thrust Roller Bearing**
A self-aligning thrust bearing that uses spherical rollers. It is capable of handling axial loads while allowing for some misalignment.
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This article was originally published on [China Bearing Network](http://www.chinabearing.net).
For more information on bearings and their applications, visit the official website.
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