86-757-88320620 / 86-18927227389       hzcdsales1@lihui88.com
How to maintain custom coupling?
Home » News » Product News » How to maintain custom coupling?

How to maintain custom coupling?

Views:0     Author:Site Editor     Publish Time: 2021-04-16      Origin:Site

Custom coupling is a special design for the machine which has no standard type can be met. Our clients may think the custom coupling is small and complicated. However, we can maintain custom coupling by ourselves to extend custom coupling’s lifespan.


  • What are the common failures of custom coupling?

  • How to maintain custom coupling?

  • How to lubricate custom coupling?


What are the common failures of custom coupling?

Balance level: The balance level of any custom coupling component is determined according to the square root of the possible value of the eccentricity of the center of gravity between the main axis of inertia of the coupling and the axis of rotation. The imbalance is expressed in microns. Due to various reasons, the center of mass or inertial principal axis of the coupling does not coincide with the axis of rotation, and the phenomenon of unbalanced centrifugal inertial force, centrifugal inertial couple force and dynamic deflection will occur during operation, which is called rotor imbalance phenomenon. This imbalance phenomenon will inevitably cause the vibration of the shaft system, thereby affecting the normal operation and lifespan of the machine.

Relative displacement: The two shafts connected by the custom coupling produce relative displacement due to many factors such as manufacturing error, installation error, deformation caused by shaft load, base deformation, bearing wear, temperature change, and relative movement between components. Under normal circumstances, the relative displacement of the two shafts is difficult to avoid, but the displacement direction generated by the shafting transmission under different working conditions, that is, the axial, radial, angular and displacement magnitudes are different. Only the flexible coupling has the performance of compensating the relative displacement of the two shafts, so a large number of flexible couplings are selected in practical applications. Rigid couplings do not have compensation performance and their application range is limited, so the amount used is small.


How to maintain custom coupling?

Replace with new grease and inject qualified grease regularly to prevent oil leakage and sufficient oil.

Re-align, or re-align the gear reducer side, or re-align the reel side. First find out the part with large offset error, measure which side of the custom coupling is offset, that is, measure the levelness of the main custom coupling, and re-calibrate according to the quality.

In addition, the horizontality and concentricity of the two shafts have large errors, which causes the custom coupling to be awkward when rolling. The reason for the gear wear of the above-mentioned lifting fitting custom coupling is basically similar. In addition to the normal force, the connecting bolt is also subjected to additional bending moment, which causes it to break. This kind of reason mostly occurs when the level difference between the left and right sides of the reducer main shaft is large. Furthermore, bolts with small diameters, insufficient strength, or poor quality of bolt materials can also cause bolts to break.


How to clean custom coupling?

Cleaning and quality evaluation of all parts of the custom shaft coupling is an extremely important task after the coupling is disassembled. The evaluation of components refers to comparing the existing conditions of the size, shape and material properties of each component with the quality standards determined by the component design to determine which components can continue to be used and which components should be used. After repairing, which parts should be scrapped and updated. If the parts of custom coupling are damaged or fail to meet the qualification requirements, new parts should be replaced in time to avoid some troubles.

All the parts of custom coupling must be cleaned, thoroughly clean the stolen goods on the surface, check the damage marks, surface cracks and smash defects. Through cleaning, it is decided to reuse or repair parts.

We should pay attention to the cleaning of custom coupling in use or new replacement parts, to remove the burrs from the parts in use or processing. This will help the assembly work to ensure the normal function of the parts. Parts cleaning must be carried out during the cleaning process.

After cleaning and drying the plum flexible coupling parts, oil must be applied to prevent the parts from rusting. If the parts are cleaned with a chemical alkaline solution, they must be rinsed with hot water after washing to prevent the surface of the parts from being corroded. Precision parts and custom aluminum alloy coupling parts should not be cleaned with alkaline solution.


Learn more something about custom alloy aluminum couplings can know the common errors of custom couplings and how to maintain custom couplings. If you want to buy good custom couplings with reasonable price, FOSHAN HOUZHE TRANSMISSION EQUIPMENT CO., LTD. is your best choice. We have all types of different shaft couplings and if you want to have other type of shaft coupling, you can contact us.




No.29 south area of LiangBei Industrial Zone, Dali Town, Nanhai District, Foshan City, Guangdong Province, China.
 86-757-88320620
Copyrights   2020 Foshan Houzhe Transmission Equipment Co.,Ltd.     Sitemap / Supported by:Leadong