
Couplings serve as essential mechanical components widely applied in various mechanical transmission systems, playing irreplaceable roles in ensuring stable and efficient equipment operation. Primarily, they connect two rotating shafts to transmit torque and rotational motion, enabling coordinated operation between driving and driven parts in diverse machinery. Beyond basic power transmission, couplings effectively compensate for minor axial, radial and angular misalignments between connected shafts, which are commonly caused by manufacturing errors, installation deviations or equipment operation wear. They also act as a vital buffer structure, absorbing vibration and reducing impact force during mechanical operation to alleviate component friction and abrasion. Additionally, couplings can protect core mechanical parts by limiting transmitted torque, avoiding severe damage to equipment when overloaded. With these practical functions, they guarantee the reliability, safety and service life of all kinds of rotating mechanical systems in industrial operation.