86-757-88320620 / 86-18927227389       hzcdsales1@lihui88.com
What is the function of custom coupling?
Home » News » Product News » What is the function of custom coupling?

What is the function of custom coupling?

Views:0     Author:Site Editor     Publish Time: 2021-04-08      Origin:Site

Custom coupling is one service advantage of many shaft coupling factories. Although you can find a suitable flexible shaft coupling from standard list, you can also require the seller to do a custom coupling if there is no standard shaft coupling that is suitable to your machine. However, the custom coupling must be done according to the shaft coupling.


  • What is the function of custom coupling?

  • What are the types of custom coupling?

  • What is the technology superiority of custom coupling?


What is the function of custom coupling?

Custom couplings have the ability of buffering, dampening, and improving the dynamic performance of the shaft system. Custom coupling refers to a device that connects two shafts or shafts and rotating parts, and rotates together in the process of transmitting movement and power, and does not disengage under normal conditions. Sometimes custom coupling is also used as a safety device to prevent the connected parts from being subjected to excessive loads and play a role in overload protection.

Custom coupling is often composed of two halves, which are connected by a key or tight fit respectively, and fastened to the ends of the two shafts, and then the two halves are connected in some way. The custom coupling can also compensate the deviation between the two shafts due to inaccurate manufacturing and installation and deformation or thermal expansion during work.

  • Custom detachable universal coupling can compensate the axial displacement, radial displacement and angular displacement of the two connected shafts caused by manufacturing and installation errors to avoid excessive additional load on the shaft end.

  • Custom coupling can alleviate the torsional impact on the shaft during deceleration.

  • Custom coupling can change the resonance speed of the shaft system. For example, when the impact absorption power is the same, the larger the torsion angle based on the torque, the smaller the impact torque and the lower the resonance speed.


What are the types of custom coupling?

Custom couplings can be divided into two categories: rigid couplings and flexible couplings.

Rigid couplings do not have the ability to buffer and the ability to compensate for the relative displacement of the two axes, which requires strict alignment of the two axes. However, rigid coupling has simple structure, low manufacturing cost, convenient assembly and disassembly and maintenance, and can ensure that the two axes have the neutrality of the transmission is greater. Rigid couplings can be used in flange couplings, sleeve couplings and clamp couplings. m

Flexible couplings can be further divided into flexible couplings without elastic elements and flexible couplings with elastic elements. The former type only has the ability to compensate the relative displacement of the two axes, but it cannot buffer and dampen vibrations, which is commonly used in slider couplings, gear couplings, universal couplings and chain couplings.

Because the latter type contains elastic elements, in addition to the ability to compensate for the relative displacement of the two axes, flexible couplings with elastic elements also has the ability of buffering and dampening.

However, it is worse than the flexible telescope coupling without elastic elements for the torque is limited by the strength of the flexible element. Flexible couplings with elastic elements commonly are the part of elastic sleeve pin couplings, elastic pin couplings, plum-shaped couplings, tire couplings, serpentine spring couplings and reed couplings.


What is the technology superiority of custom coupling?

1. Dry test coupling without lubrication.

The custom coupling uses the metal diaphragm to transmit the torque and digest and absorb the deformation caused by the error. There is no relative speed among the parts, no friction damage, so it does not need to be lubricated, which is in line with the development direction of the machine equipment diaphragm vacuum pump. The lubrication problem of high-speed gear couplings is particularly prominent. In addition, the damage caused by the relative slip of the tooth surface will cause a series of problems such as grease and imbalance.

2. All metal components, large torque transmission capacity, long lifespan.

Custom diaphragm couplings use metal diaphragms as elastic elements, which have high compressive strength and large load transfer capacity. Non-metallic materials cannot be found in all commodities, there is no embrittlement problem but has long lifespan and the application of the natural environment.

3. Great working ability in compensation errors, convenient installation and correction.

The custom flexible coupling is made of high-toughness austenitic stainless steel pulse dampener, which can bear a large deformation while transmitting torsion, and then compensate for the error of the two shafts. The non-metallic elastic coupling is restricted by the low compressive strength and easy embrittlement of the non-metallic elastic element, which not only has a short life, but also has a small compensation work capacity.

4. The radial and angular bending rigidity is low, and the damage to machinery and equipment is small.

The custom diaphragm coupling chooses too thin metal diaphragm as the elastic element, the angular and radial bending stiffness is low so that the extra radial force and extra bending distance are not large. The custom coupling will cause a lot of extra radial force and extra bending distance on the shaft and rolling bearing due to friction and two shaft errors after being stressed.


Learn more something about custom couplings can know the functions of custom couplings and the technology superiority of custom extension shaft couplings. If you want to buy good shaft couplings with reasonable price, FOSHAN HOUZHE TRANSMISSION EQUIPMENT CO., LTD. is your best choice. Whether from quality or price, or delivery time, we can help customers to open up a further and larger market. We have all types of different shaft couplings and if you want to have other type 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