Thrust bearings can be divided into two main categories: ball thrust bearings and roller thrust bearings.
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Thrust bearings play a crucial role in many applications, including automotive, aerospace, energy, and industrial equipment, among others.
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The thrust bearings catalog is an important reference for engineers and designers when selecting appropriate thrust bearings.
Product Classification：Different types of thrust bearings are categorized, such as ball cushion type, roller type, and cylindrical roller type.
Product Specifications：Specifications for each type of thrust bearing are listed, including dimensions, load capacity, speed ratings, etc.
Bearing No. (Flat type)
Bore(d)(mm)
Outer(D)(mm)
T(mm)
F4-9M 4 9 4 F4-10M 4 10 4 F5-10M 5 10 4 F5-11M 5 11 4.5 F5-12M 5 12 4.5 F6-12M 6 12 4.5 F6-14M 6 14 5 F7-13M 7 13 4.5 F7-15M 7 15 5.5 F7-17M 7 17 6 F8-16M 8 16 5 F8-19M 8 19 7 F8-22M 8 22 7 F9-17M 9 17 5 F9-19M 9 19 6.5Bearing No. (Flat type)
Bore(d)(mm)
Outer(D)(mm)
T(mm)
r(mm)
F9-20M 9 20 7 - F10-18M 10 18 5.5 - 10 24 9 0.5 10 26 11 1 F12-23M 12 23 7.5 - 12 26 9 0.5 12 28 11 1 15 28 9 0.5 15 32 12 1 17 30 9 0.5 17 35 12 1 20 35 10 0.5 20 40 14 1 25 42 11 1 25 47 15 1Complete Version of Ball Thrust Bearings Catalog
Bearing No.
Bearing No. (Thrust bearings plate)
Bearing No. (Bearings plate)
Dc1(mm)
Dc(mm)
DW(mm)
AXK AS LS 55 78 3 AXK AS LS 60 85 3 AXK AS LS 65 90 3 AXK AS LS 70 95 4 AXK AS LS 75 100 4 AXK AS LS 80 105 4 AXK AS LS 85 110 4 AXK AS LS 90 120 4 AXK AS LS 100 135 4 AXK AS LS 110 145 4 AXK AS LS 120 155 4 AXK AS LS 130 170 5 AXK AS LS 140 180 5 AXK AS LS 150 190 5 AXK AS LS 160 200 5Complete Version of Needle Roller Thrust Bearings Catalog
Thrust bearings play a crucial role in various mechanical applications, and selecting the appropriate thrust bearing is vital to ensuring the stability of equipment operation. By understanding the basic principles of thrust bearings and consulting relevant product catalogs, you can make better choices to meet your needs and ensure the performance and reliability of your equipment.
Choosing the appropriate thrust bearings is a critical step in ensuring the smooth operation of the machinery.
Here are some important factors to consider when selecting the appropriate thrust bearings:
Load Type and Magnitude: You need to determine the type and magnitude of the loads your application will bear to ensure that the selected bearings can effectively handle these loads.
Operating Speed: If your application requires high-speed operation, ball thrust bearings may be a better choice. For larger loads, consider using roller thrust bearings.
Installation Space: Consider the available installation space in your machinery to determine the appropriate size of thrust bearings.
Additionally, you should also consider the reputation of the manufacturer and the quality of the product to ensure that the thrust bearings you purchase have excellent durability and reliability.
Choosing the appropriate thrust bearings requires considering multiple factors, including load type and magnitude, operating speed, and installation space. By carefully considering these factors, you can find the thrust bearings that best suit your application, thereby ensuring smooth and reliable operation of your equipment.
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There are many different types of bearings available today with very little information on the differences between them. Maybe you’ve asked yourself “which bearing will be best for your application?” Or “how do I choose a bearing?” This bearing selection guide will help you answer those questions.
First off, you need to know that most bearings with a rolling element fall into two broad groups:
Within these groups, there are sub-categories of bearings that have unique features or optimized designs to enhance performance.
In this bearing selection guide, we’ll cover the four things you need to know about your application in order to choose the right type of bearing.
Bearing loads are generally defined as the reaction force a component places on a bearing when in use.
When choosing the right bearing for your application, first you should find the bearing’s load capacity. The load capacity is the amount of load a bearing can handle and is one of the most important factors when choosing a bearing.
Bearing loads can either be axial (thrust), radial or a combination.
An axial (or thrust) bearing load is when force is parallel to the axis of the shaft.
A radial bearing load is when force is perpendicular to the shaft. Then a combination bearing load is when parallel and perpendicular forces produce an angular force relative to the shaft.
To learn more about axial and radial ball bearings, contact our team of engineers!
Ball bearings are designed with spherical balls and can distribute loads over a medium-sized surface area. They tend to work better for small-to-medium-sized loads, spreading loads via a single point of contact.
Below is a quick reference for the type of bearing load and the best ball bearing for the job:
Roller bearings are designed with cylindrical rollers that can distribute loads over a larger surface area than ball bearings. They tend to work better for heavy load applications.
Below is a quick reference for the type of bearing load and the best roller bearing for the job:
Bearing runout is the amount a shaft orbits from its geometric center as it rotates. Some applications, like cutting tool spindles, will only allow a small deviation to occur on its rotating components.
If you are engineering an application like this, then choose a high precision bearing because it will produce smaller system runouts due to the tight tolerances the bearing was manufactured to.
Bearing rigidity is the resistance to the force that causes the shaft to deviate from its axis and plays a key role in minimizing shaft runout. Bearing rigidity comes from the interaction of the rolling element with the raceway. The more the rolling element is pressed into the raceway, causing elastic deformation, the higher the rigidity.
Bearing rigidity is usually categorized by:
The higher the bearing rigidity, the more force needed to move the shaft when in use.
Let’s look at how this works with precision angular contact bearings. These bearings typically come with a manufactured offset between the inner and outer raceway. When the angular contact bearings are installed, the offset is removed which causes the balls to press into the raceway without any outside application force. This is called preloading and the process increases bearing rigidity even before the bearing sees any application forces.
Knowing your bearing lubrication needs is important for choosing the right bearings and needs to be considered early in an application design. Improper lubrication is one of the most common causes for bearing failure.
Lubrication creates a film of oil between the rolling element and the bearing raceway that helps prevent friction and overheating.
The most common type of lubrication is grease, which consists of an oil with a thickening agent. The thickening agent keeps the oil in place, so it won’t leave the bearing. As the ball (ball bearing) or roller (roller bearing) rolls over the grease, the thickening agent separates leaving just the film of oil between the rolling element and the bearing raceway. After the rolling element passes by, the oil and thickening agent join back together.
For high-speed applications, knowing the speed at which the oil and thickener can separate and rejoin is important. This is called the application or bearing n*dm value.
Before you select a grease, you need to find your applications ndm value. To do this multiply your applications RPMs by the diameter of the center of the balls in the bearing (dm). Compare your ndm value to the grease’s max speed value, located on the datasheet.
If your n*dm value is higher than the grease max speed value on the datasheet, then the grease won’t be able to provide sufficient lubrication and premature failure will occur.
Another lubrication option for high-speed applications are oil mist systems which mix oil with compressed air and then inject it into the bearing raceway at metered intervals. This option is more costly than grease lubrication because it requires an external mixing and metering system and filtered compressed air. However, oil mist systems allow bearings to operate at higher speeds while generating a lower amount of heat than greased bearings.
For lower speed applications an oil bath is common. An oil bath is when a portion of the bearing is submerged in oil. For bearings that will operate in extreme environments, a dry lubricant can be used instead of a petroleum-based lubricant, but the lifespan of the bearing is typically shortened due to the nature of the lubricant’s film breaking down over time.
There are a couple of other factors that need to be considered when selecting a lubricant for your application, see our in-depth article “How to Choose the Correct Ball Bearing Lubricant".
If you want to learn more, please visit our website TIMKEN Bearings Distributors.