Thrust Ball Bearing Classification for SKF Rolling Bearings
Source: Bearing Network | Date: November 2, 2013
Thrust ball bearings are a type of rolling bearing designed to support axial loads. They are commonly used in applications where the primary direction of force is along the axis of rotation. SKF offers several types of thrust ball bearings, each with specific features and applications. **One-way Thrust Ball Bearings** These bearings are designed to handle axial loads in one direction only. They consist of a shaft washer, a raceway, and a set of balls and cages. The design is simple and separable, allowing for easy assembly and disassembly. There are two main types: flat seat and spherical seat. Spherical seats are useful when there is potential misalignment between the housing and the shaft. While SKF can provide spherical cushions, they must be ordered separately. One-way thrust ball bearings cannot withstand radial loads and are ideal for applications where the load is unidirectional. They are often used to fix the position of a rotating shaft in one direction. **Two-way Thrust Ball Bearings** Unlike one-way bearings, two-way thrust ball bearings can handle axial loads in both directions. They feature a shaft ring, two raceways, and two sets of balls and cages. This design allows them to guide and fix the shaft in both directions. Like their one-way counterparts, they are separable and suitable for applications requiring bidirectional axial support. They also come in flat or spherical seat options. Spherical designs are beneficial when some degree of misalignment is expected. Again, spherical cushions need to be ordered separately if required. **Angular Contact Thrust Ball Bearings** These bearings are designed for high-load capacity, high axial stiffness, and low friction torque. They are often used in drilling equipment and other applications that require precision and performance. Unlike standard thrust ball bearings, angular contact bearings can also handle radial loads, making them more versatile. They are capable of operating at higher speeds and are ideal for demanding environments. There are different variations, including one-way and two-way angular contact bearings. These types are particularly useful in machines that require accurate alignment and efficient load distribution. **Cylindrical Roller Thrust Bearings** These bearings are ideal for heavy axial loads and are known for their rigidity and compact design. They are not affected by impact loads and are commonly used in machinery where space is limited. Cylindrical roller thrust bearings are typically one-way, meaning they support axial loads in a single direction. They come in single-row and double-row configurations. The 811 and 812 series are frequently used in thrust bearing applications. The cylindrical shape of the rollers has a slight taper at the ends, which helps reduce edge pressure and improve performance. The components of these bearings are separable, allowing for easier maintenance and replacement. If additional parts are needed, such as a shaft ring (WS), seat (GS), or a combined assembly (K), they can be ordered separately to suit specific application requirements.
**Related Bearing Knowledge** - Hydraulic Excavator Working Equipment Shaft and Bearing Description - NTN Bearing Application Considerations - Common Differences Between Bearings - Metallurgical Defects in Bearing Steel - Bearing Life Enhancement Experiments This article was originally published on China Bearing Network. For more information, visit [http://www.chinabearing.net](http://www.chinabearing.net). Previous: Damage Mechanisms of Rolling Bearings Next: Corrosion Methods of Forklift Bearings
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