The sprocket chain should be kept flat

The sprocket chain is mounted on the shaft without skew or swing. When the end faces of the two sprockets in the same drive assembly should be located in the same plane, the distance between the center of the sprocket is less than 0.5 meters, we allow the distance is 1 mm; If the center distance of the sprocket is above 0.5 m, then the permitted distance is 2 mm. At that time is not allowed to have friction sprocket tooth side phenomenon, if there are two wheels offset too large, it will be easy to appear off the chain acceleration damage. Pay attention to checking and adjusting the offset when replacing the sprocket.

Service life of chain sprocket. Oiling only oil on the chain, but not too much to prevent spray to ensure that the chain can not be oily. This is a good method of oiling. Oil is good but can not have a number of too frequent, too much oil will lead to black sprocket oil, in the process of riding, there will inevitably be dust, or sand will make the chain sprocket between the wear increase. Some cars with back dial, for easy operation before the chain to adjust to the small wheel. When cleaning, the tooth disc should be reversed not too fast before refueling. If you use a chain beater, keep it flat so it won't damage the tool.

Chain hinge wear, prolong service life, sprocket lubrication is not negligible. Lubrication modes are divided into three types according to different operating conditions: manual oil feeding or dropping oil lubrication mode, oil pool lubrication mode, and forced oil feeding lubrication mode of oil pump. No matter which lubrication mode is chosen, the purpose is the same to reduce the wear of friction pair, reduce power consumption, eliminate overheating caused by friction, ensure smooth transmission and extend the service life.

The chain has good lubrication and poor lubrication in the use of the wear amount can be different 200-300 times, once the lubrication is not sufficient, the pin shaft and sleeve will be worn, and this causes the chain and sprocket meshing disorder, noise increases, chain elongation. Even cause a chain break accident. Poor lubrication between the roller and the sleeve will cause serious early friction damage to these parts and make them unusable. Therefore, the formulation of the selection of lubricating oil viscosity, oil position and method, oil interval and oil injection amount of reasonable program, make the chain between the friction surface full lubrication is a crucial measure to play the performance of the chain.

Sprocket tooth distance error, although the sprocket processing is very delicate, but if it is a small batch, often is line cutting or milling cutter milling teeth. Roundness is out of the car, easy to ensure, tooth distance is cut or milling out, it is hard to say. The diameter of the indexing circle is also not so easy to guarantee. Consider the principle of vernier calipers. ****** The scale is right on time, and each subsequent scale will be more and more wrong. If the error is large, it can even cause the chain to the top of the tooth, so there will be periodic chain off.