Knowing how to mount bearings is one crucial way to reduce wear, prevent premature failure of expensive equipment components, reduce downtime, reduce maintenance cost, and optimize your machinery performance. This article explains in detail how you can properly install your mounted bearing without making common mistakes.
How To Install Mounted Bearing
Installation of mounted bearings are critical processes to ensure proper removal and installation of the bearings. Below is a simple guide for installing mounted bearing:
Clean The Housing And The Shaft: Use solvent and a clean cloth to clean the shaft and the housing before mounting your bearing.
Apply Lubricant: Evenly distribute lubricant within the shaft and the housing.
Check Fit: Measure the inner and outer diameters of the bearings to make sure the shaft and housing are a good fit. In addition, check the tolerance values against the specification.
Install Bearing: Do not hit the bearing with a hammer into the shaft or housing, rather put the bearing on the shaft or in the housing and make sure it seats properly.
Apply Axial Load: Ensure the bearing properly seats by applying a small amount of axial load on it.
Secure The Bearing: Tighten the locking device or snap ring as per your manufacturer’s instruction.
Ball Bearing Locking Mechanism

Are you curious about the best ball bearing locking mechanism for you? Don’t worry, there are enough of them in the market, although each has advantages and disadvantages.
The locking mechanism you choose will influence your bearing performance, because all locking mechanisms are not right for every application. When you are searching for the one that is good for you, you might be tempted by the cheap options, but is it a good decision if you buy cheap ones? Read on to discover.
Set Screw Shaft Lock

Setscrew also known as “set screw locking” is the most famous amongst other locking mechanisms for securing a mounted bearing to the shaft. It is comparatively cheap, simple to install, and it’s common. In conclusion, they are entry-level locking mechanism base on their basic designs.
Advantages
- Compact and small in size
- Simple to install
- They provide Secure connection between two objects
- Durable and resistant to corrosion, rust and other form of wear and tear
Disadvantages
- Challenging to remove once installed
- Provide limited clamping force compared to other fasteners
- Potentially causing surface damage when they are overtighted or used on soft material like wood.
Eccentric Collar Shaft Lock

In comparison to the setscrew, the eccentric collar locking technique offers a significant increase in shaft engagement. It’s more dependable in a range of applications while still being reasonably priced and simple to install. Furthermore, eccentric collars are counterbored to interact with the inner ring of the bearing. In conclusion, the hold gets stronger with time because they employ positive binding.
Advantages
- They use eccentric biding
- Easy Fastening
- Easy to replace
- Works with fine thread and left threads
- The holds become stronger overtime
- Eccentric collar shaft lock protect the shaft from scarring
Disadvantages
- It only function in uni-directional drive
- Not suitable for bi-directional drive
- Prone to directional errors
- Achieving a precise alignment is more challenging
Concentric Collar Shaft Lock

The first high-speed suitable locking style is the concentric collar. The collar completely encircles the outer and segmented ring of the installed bearing. In addition, all 360 degrees of the shaft receive an equal distribution of force as the collar clamps down.
Advantages
- Quieter operation
- Increased lock reliability
- Higher speed of operation
- More near-perfect concentricity
- Gives less damage to the shafting
- keeps everything balanced within the center of the bearing
- This locking style does not force the shaft out of the center
- Can be used in higher speed drive
Disadvantages
- Concentric locking collar shaft lock has the lowest axial loading power of any locking style
- Collars may get scarred
- They may not be a good fit for all kinds of applications
- They are susceptible to corrosion in some environment
- You need special tool for the removal and installation
- More expensive
Adapter Sleeve Shaft Lock

The adapter sleeve shaft lock is the most versatile locking mechanism, although its applications are limited. Because of its ability to prevent shaft cocking in eccentric or set screw collars, the adapter is the most frequently employed in high speed applications. In conclusion, this type of shaft locking works well for centering the shaft inside the bearing bore.
Advantages
- Easy to install
- Require no additional location on the shaft
- Simplify bearing arrangement design
- The shaft does not need to be machined to precision tolerance to be mounted
- It eliminates the shaft cocking that occurs in setscrew or eccentric collar
- Excel at centering the shaft within the bore of the bearing
Disadvantages
- Require a larger bearing to accommodate this.
- Adapter sleeve add extra weight to the assembly
- You need special tool to remove and install adapter sleeve
- The sleeve of the adapter requires more space on the shaft
FAQs
Which Mounted Bearing Locking Collar Is Right?
Ultimately, selecting a shaft locking mechanism requires striking a balance between functionality and price.
Conclusion
In conclusion, choosing the right mounted bearing locking collar for your applications is important to ensure their reliability and efficiency.




