How to reduce noise in synchronous timing belts

In modern mechanical transmission systems, Synchronous Timing Belts are core transmission components, and their performance stability and noise control capabilities have become important criteria for evaluating their quality. With the continuous advancement of industrial technology, especially in application fields with growing requirements for high precision and low noise, such as automated production lines, precision instruments and medical equipment, it is particularly important to optimize the noise control of synchronous belts.

Material optimization
In terms of material selection, by improving the materials of synchronous belts and their matching pulleys, the noise during the transmission process can be significantly reduced. For example, using materials with higher flexibility at the root of the belt teeth or the top of the wheel teeth can effectively reduce the impact sound generated during meshing. Taking Synchroflex's polyurethane synchronous belt as an example, its unique double-peak tooth and groove design is particularly suitable for high-speed transmission environments and helps to reduce noise. In addition, Continental's SILENTSYNC herringbone tooth synchronous belt uses patented rubber materials to enhance the rigidity of the teeth and resist deformation. At the same time, its tension line uses bulletproof vest materials to increase tension and service life, thereby reducing noise caused by material fatigue.

Transmission structure optimization
In terms of transmission structure design, a reasonable structural form can also effectively reduce noise. For example, using multiple narrow belts to replace a single wide belt transmission can achieve a quieter transmission effect while transmitting the same power. In addition, appropriately increasing the center distance can also effectively reduce the operating noise. In the pulley design, the use of non-cylindrical synchronous pulleys can reduce the transmission noise by about 6~10dB compared with cylindrical pulleys, especially when running at high speeds, the noise control effect is more significant. These design schemes can alleviate the noise generated by synchronous belt transmission to a certain extent.

Improved manufacturing and installation accuracy
In addition to material and structural design, improved manufacturing and installation accuracy is also a key factor in reducing noise. High-precision pulleys and synchronous belts can effectively reduce vibration and impact during transmission, thereby reducing noise. At the same time, improving the installation accuracy of synchronous belts can reduce the lateral vibration of the belt and further reduce noise. Therefore, during the manufacturing and installation process, the accuracy must be strictly controlled to ensure the stability and reliability of the transmission system.

Reasonable adjustment of tension coefficient
The influence of the tension coefficient of synchronous belt transmission on noise cannot be ignored. If the tension coefficient is insufficient, the synchronous belt may be stretched during operation, resulting in periodic clapping sounds. Therefore, it is very important to reasonably adjust the tension coefficient according to the actual application requirements to ensure that the synchronous belt maintains a stable tension state during the transmission process.