AS9120B, ISO 9001:2015, and FAA AC 0056B ACCREDITED

How to Install and Inspect Needle Roller Bearings?

Needle roller bearings are a common form of bearing element, capable of supporting loads while facilitating motion and deterring friction that occurs between moving parts. As compared to other common forms of roller bearings, needle roller bearings are most notable for their cylindrical rollers that typically have a length four times the size of their diameter. With this general design, needle roller bearing components regularly support applications such as the functionality of rocker arm pivots, pumps, transmissions, compressors, drive shafts, and much more. In this blog, we will discuss the installation and inspection process of needle roller bearings, ensuring that you are able to best take advantage of such components for your operations and projects.

When it comes time to begin the installation process for your needle roller bearings, it is important to first consider what types of elements may be present on the specific bearing you have on hand. For example, needle roller bearings with machined rings follow a similar mounting process as cylindrical roller bearings, while those with ribs will necessitate cage assemblies and removable inner rings to be effectively installed. If the needle roller bearing is devoid of ribs, the outer ring, needle roller, cage assembly, and inner ring may all be individually mounted. Aside from these common options, there are also specialized types that may necessitate more unique installation methods, so it is important to refer to any manufacturer documentation to ensure that the proper procedure is carried out. When working with any bearing cup, ring gauge, or bearing bore, it is essential that you follow proper alignment and press practices to avoid any issues further down the line.

Even when following every correct installation and mounting procedure, needle roller bearings will still eventually fail as a result of standard use over time as such components have limited service lives. As a result, it is important to conduct regular inspections so that any potential issues may be found early. While advanced diagnostic technologies can be used to evaluate the condition of a bearing, these are often best for when there are concerns for fatigue, quality, and other attributes that are more difficult to determine through basic visual means.

As such, the most common duties one will carry out for basic maintenance include cleaning, visual inspection, and judgment. When it comes to cleaning, the bearing should be removed so that any contaminated oil can be replaced while topping off any low lubrication levels. If the bearing is undergoing a more thorough cleaning, one should check the surface of the component for any damage before rotating it within oil.

To determine whether or not the bearing is suited for reuse, its dimensional and rotation accuracy, sealing ring, cage, raceway surface, internal clearance, and mating surface will all need to be looked over. Generally, if issues such as fractures, defects, or surface peeling are noticed, the bearing should be repaired or replaced as soon as possible to ensure that no damage ensues from a faulty or low-quality component. If you are faced with replacement needs and are in the market for reliable needle roller bearing components and tools, look no further than NSN World.

As a purchasing platform belonging to the ASAP Semiconductor family of websites, we offer our customers access to an unrivaled database containing over 2 billion new, used, obsolete, and hard-to-find parts. As everything we list online may be purchased at any time, we encourage you to explore our website at your leisure to find items of interest that you may request quotes on with our RFQ service. By providing us with important information such as your target price and desired shipping timeline, we can best tailor our solution before presenting it to you in 15 minutes or less. Get in touch with an industry expert today and see why so many customers steadily depend on NSN World for their operational needs!


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December 14, 2022

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