The thrust bearing is one type of rotary bearings that are known at sustaining extreme load capacity when operating in extremely hostile conditions. The structural design of these bearings enables them to work parallel to the shaft while delivering maximum axial load capacity. There are different varieties of Thrust bearings with different dimensions and configurations as well as performance and precision. However, thrust bearings can be categorized into two major types.
Where are thrust bearings used?
Different varieties of bearings offer different performance and precision as well as load capacity, and that means that each variety has its application. Thrust bearings can be found in a variety of industries such as chemical industries, aerospace, as well as utilities with rollers. Thrust bearings are ideal for agriculture as well as other industries that require extreme load capacity.
What type of materials are used in thrust bearings?
There are different types of materials used in thrust bearings, while the most common materials are ceramic and stainless steel. Normally the cage is fabricated using brass, steel, or polyamide depending on the application and the requirements. In order to enhance the general performance of the bearings, special lubricants are used and sometimes special seal, shields, and coatings to protect the bearings from humidity and dust.
What are the types of thrust bearings?
There are two main types of thrust bearings which are the roller thrust and thrust bearings. These two different types are used in different equipment and applications as they differ in durability, performance, load capacity carrying as well as precision. Ball Thrust Bearings are known for delivering extreme performance but they offer lesser axial load as compared to the roller bearings. While the roller thrust bearings are normally used in equipment and applications that require extreme load-carrying capacity.
Thrust Ball Bearings
There is a special type of thrust bearing that comes with balls where these balls are used in separating the balls known as washers due to their design and shape. A cage is responsible for holding the ball bearing by ensuring that they maintain the precise position between the raceways. This type is capable of functioning in extreme speed. Due to its limitations caused by the nature of its design, these bearings work in pairs so as to prevent any dislocation during the mounting process. According to the application and its requirements, the washer size may differ. Normally, these thrust bearings can be found in two major designs, where the first design consists of a grove race that prevents friction between the bearings while the other has no groove race and this increases its axial load capacity.
Thrust Roller Bearings
This kind of Thrust Bearing is identical to the ball thrust bearings when it comes to the external design. However, they have a slight difference when it comes to internal design and use as well as its features. Roller thrust bearings tend to have extreme load capacity but they cannot super pass the ball thrust bearings. But there is a possibility of increasing the performance of roller thrust bearing by using special lubricants. Just like thrust ball bearings, thrust bearings consist of two washers, rollers as well as the cage for holding rollers in place. These are also used in pairs.