Custom Conveyor Roller Bearing

How to adjust the clearance of conveyor roller bearings during assembly? What is the impact of clearance adjustment on the performance and service life of conveyor roller bearings?

The clearance of conveyor roller bearings refers to the gap between the rolling element and the raceway of the inner and outer rings of the bearing when no external force is applied. Reasonable clearance adjustment is the key to ensure the normal operation of the bearing, reduce friction loss, improve load-bearing capacity and extend service life. The clearance adjustment methods adopted by YININ mainly include the following:
Preload method:
By applying a certain preload force, the inner and outer rings of the bearing produce slight elastic deformation, thereby reducing or eliminating the original clearance and improving the rigidity of the bearing. This method is suitable for occasions requiring high precision and high rigidity, such as precision machinery and high-speed running equipment.
Shim adjustment method:
Insert shims of different thicknesses between the bearing seat and the bearing cover, and change the axial position of the bearing by adjusting the thickness of the shim, thereby achieving the purpose of adjusting the clearance. This method is simple and easy, and is suitable for the adjustment of most common conveyor roller bearings.
Locking nut adjustment method:
Use the locking nut to axially position the bearing seat, and adjust the axial clearance of the bearing by rotating the nut. This method requires that the nut is locked reliably to avoid looseness and clearance changes.
Automatic adjustment device:
For some high-end conveyors, YININ can provide a device equipped with automatic clearance adjustment. Through the built-in spring or hydraulic mechanism, the bearing clearance is automatically adjusted according to the working conditions to ensure that the bearing is always in the best working condition.
The impact of clearance adjustment on the performance and service life of conveyor roller bearings
Improve operation stability:
Reasonable clearance adjustment can effectively reduce the vibration and noise of the bearing during operation and improve the overall operation stability of the conveyor. This is crucial to ensure the continuity of the production line and the stability of product quality.
Optimize load capacity:
Appropriate clearance can ensure that the contact stress between the rolling element and the raceway is more evenly distributed when the bearing is subjected to radial and axial loads, thereby improving the bearing's load capacity. This is of great significance for the stable operation of the conveyor roller under heavy load and impact load conditions.
Extend service life:
Excessive clearance will increase the relative sliding between the rolling element and the raceway inside the bearing, accelerating wear; while too small clearance may cause the bearing to overheat or even get stuck due to friction heat. Therefore, accurate clearance adjustment can significantly extend the service life of bearings, reduce replacement frequency, and reduce maintenance costs.
Enhance lubrication effect:
Reasonable clearance helps to form a good lubricating oil film, reduce direct contact between rolling elements and raceways, reduce friction coefficient, and improve lubrication efficiency. This has a positive effect on reducing bearing wear, preventing overheating, and extending the service life of lubricants.
Adapt to temperature changes:
Bearings will generate heat due to friction during operation, causing temperature rise, which in turn causes thermal expansion of materials. Reasonable clearance adjustment can reserve enough space to accommodate this thermal expansion and prevent bearings from getting stuck or damaged due to thermal expansion and contraction.
YININ has the following significant advantages in bearing clearance adjustment:
High-precision measuring tools: The company is equipped with modern manufacturing equipment and precision measuring tools, which can accurately measure the clearance of bearings and ensure adjustment accuracy.
Customized solutions: With strong technical strength and rich industry experience, YININ can provide tailor-made bearing solutions, including clearance adjustment solutions, according to the specific needs of customers.
Comprehensive quality control system: The company has established a complete quality control system. From raw material procurement to finished product delivery, each process is strictly inspected to ensure stable and reliable product quality.
Professional technical team: It has a professional team of 12 technicians who have rich experience in bearing design, production and adjustment, and can provide customers with professional technical support and services.