Roller thrust bearings are advantageous because they can withstand high loads or shocks. The ends of the rollers are slightly recessed, which allows them to support high loads without causing damage to the raceways. These products can also be used up to at least 120 °C.
When selecting a roller bearing, it is important to take into account the dimensions of the bearing, its profile and the material of the roller cage.
Regarding the dimensions of the stop, it is necessary to know its inner diameter, outer diameter and thickness. You can take these dimensions with an analogue or digital caliper. If you are in doubt about the measurements, we advise you to take them directly on the assembly. To do this, you only need to take the outside diameter of your shaft, the inside diameter of your bore and the available thickness.
There are several options for the profile of the stop. Roller bearings can be open or closed. Open roller bearings have a shaft washer, a housing washer and a roller cage. Closed roller bearings also have two washers and a roller cage. The special feature is that one of the two washers covers the whole.
The material of the roller cages can be steel or polyamide. The suffixes "TN" or "TV" indicate that it is made of polyamide, otherwise it is made of steel.
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- Applications, Structure, and Function of Thrust Bearing
- Types of Thrust Bearings: Balls and Rollers
- Types of Thrust Bearings: Other Types
Thrust bearing, also known as thrust ball bearings or axial bearings, are primarily used to support or withstand axial or thrust loads. In contrast to radial bearings, which primarily handle radial loads, thrust bearings are specifically designed to handle forces parallel to the shaft's axis.
The main purpose of thrust bearing is to support or control axial loads, ensuring smooth operation of rotating mechanical components. They are commonly used in applications where axial forces are present, such as automotive transmissions, clutches, fans, pumps, and compressors.
Thrust bearings typically consist of one or more axial balls or rollers housed within a bearing seat. Their design allows them to withstand high axial loads while maintaining low friction. A retainer is often present between the balls or rollers and the shaft to keep them properly positioned.
Thrust bearings come in two main types: unidirectional and bidirectional.
Choosing the right type depends on the load requirements and the specific needs of the application.
In summary, thrust bearings are designed to handle axial loads and provide stable operation with low friction. They play a critical role in many mechanical applications, ensuring the reliable operation of rotating equipment.
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Thrust Ball Bearings and Thrust Roller Bearings are common types of thrust bearings used to withstand axial or thrust loads.
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Thrust needle bearings, with their smaller rolling diameters, are ideal for handling high axial loads in compact spaces. They are often found in automotive transmissions, drive shafts, and small mechanical devices. Thrust cylindrical bearings, featuring larger rollers, offer higher load capacities and are better suited for medium to large axial load applications, such as industrial equipment, metallurgical machinery, and machine tools.
While thrust roller bearings provide greater load capacity and rigidity compared to thrust ball bearings, they come with a more complex structure, making assembly and adjustments more challenging.
In summary, thrust ball bearings and thrust roller bearings are common types of thrust bearings. They are designed to withstand and support axial loads in various applications. Selecting the appropriate bearing requires considering factors such as load magnitude, speed requirements, space limitations, and structural complexity.
Cylindrical thrust roller bearings are designed to handle only axial loads, but they can support high-load applications and offer high axial rigidity. The cages are typically made of machined brass.
Characteristic：
Applications：
Rotary work tables for machine tools, powdering machine rotary tables.
The Comprehensive Guide to Needle Roller Bearings
Tapered roller thrust bearings use small tapered rollers designed to meet at a single point on the bearing axis. This precise design ensures smooth rolling and prevents skidding. These bearings are commonly used in automotive applications, such as supporting wheels, and are often paired to handle axial thrust in both directions as well as radial loads. Thanks to their larger contact area, they can carry higher thrust loads than ball bearings, though their manufacturing process is more expensive.
Spherical roller thrust bearings use asymmetrical spherical rollers that roll along a spherical raceway in the washer. They’re designed to handle both radial and axial loads while compensating for shaft misalignment. Commonly used alongside radial spherical roller bearings, they stand out for having the highest load capacity among thrust bearings.
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