How to maintain the GL type roller chain coupling? The number of sprocket teeth on the roller chain coupling is generally an even number in the range of 12 to 22. If a smaller number of sprocket teeth is used, then The force on the sprocket increases; if the number of sprockets is larger, the compensation capacity of the German Lings coupling decreases, and the indexing circle diameter of the sprocket on the half coupling dp=(12~13.5) or dp=(2～3.2)d; cover outer diameter DK=(1.15～1.2)dp; half coupling outer diameter D=(O.7～0.8)dp; half coupling length L=(1.9~2.8)d, when the torque is large, take a small coefficient.

The advantage of GL type roller chain coupling transmission is that it can transmit motion and power when the center distance of the two axes is far apart. Can work under low speed, heavy load, high temperature and dusty conditions. It can ensure accurate transmission ratio, high transmission power and small force acting on the shaft. High transmission efficiency. The disadvantage is: when the hinge of the chain is worn, the pitch becomes larger and causes disjoint. Installation and maintenance requirements are high. The advantages of gear transmission are: it can ensure a constant instantaneous transmission ratio, high stability, and accurate and reliable motion transmission. Large range of delivered power and speed. It has a compact structure, reliable operation, and can achieve a large transmission ratio. High transmission efficiency and long service life. The disadvantages are: higher manufacturing and installation requirements.