Classification and use of motorcycle chains
Motorcycle chains can be divided into:
1. Motorcycle sleeve chain
2. Motorcycle roller chain
3. Trolley seal ring chain (oil chain, also divided into O-ring chain and X-ring chain)
4. Toothed chain (silent chain)
According to the use position on the motorcycle, the motorcycle chain can be divided into two types: the chain used inside the engine and the chain used outside the engine.
Most of the chains used in motorcycle engines are sleeve chains. The sleeve chain used in the engine can be divided into time gauge chain or timing chain (cam chain), balance chain and oil pump chain (for engines with large exhaust volume).
Motorcycle chains used outside the engine are transmission chains (or drive chains) used to drive the rear wheels. Most of them use roller chains (chains of individual specifications, such as 219h or 05ma, can also be used as transmission chains). High quality motorcycle chains include a full range of motorcycle sleeve chains, motorcycle roller chains, motorcycle seal ring chains and motorcycle toothed chains (silent chains).
Motorcycle O-ring chain (oil seal chain) is a high-performance transmission chain specially designed and produced for motorcycle road racing and racing. The chain is equipped with a special O-ring to seal the lubricating oil in the chain and isolate dust and dirt. The color of the chain can be divided into natural color shot blasting, golden yellow (copper plating) and silver (nickel plating). The copper / nickel plated motorcycle chain is usually copper plated or nickel plated on the inner and outer chain plates of the chain, or all parts can be copper plated or nickel plated.
Oil seal chain:
The chain is filled with a certain amount of grease in the middle of the pin sleeve, which can reduce wear and prolong service life; And because of the sealing effect of the "O" ring, it can prevent sediment from entering the hinge pair of the chain.
Correctly adjust the motorcycle chain
1. Timely adjust to keep the tightness of the motorcycle chain at 15mm ~ 20mm. Regularly check the buffer bearing and fill it with lubricating grease on time. Because the working environment of the bearing is bad, once the lubrication is lost, the damage may be great. Once the bearing is damaged, it will cause the rear gear disc to tilt, which may cause the side of the gear disc chain to wear, or the chain to fall off.
2. When adjusting the chain, besides adjusting it according to the adjustment scale of the frame chain, you should also observe whether the front and rear gear discs and the chain are on the same straight line. Because if the frame or rear wheel fork is damaged and deformed, if the chain is adjusted according to its scale, it will enter a misunderstanding, mistakenly believing that the gear disc and chain are on the same straight line, but the straightness has been damaged, so this inspection is very important (it is better to remove the chain box when adjusting). In case of any problem, it should be corrected immediately to avoid future troubles and ensure that there is no mistake.
3. When replacing the toothed disk chain, attention must be paid to replacing high-quality products with good materials and fine workmanship (generally, the accessories in the special maintenance station are more regular), so as to prolong the service life. Do not buy unqualified products for the sake of cheap, especially unqualified products of gear disc, which are eccentric and out of roundness. Once replaced, the chain will be found to be tight and loose, and the consequences are unpredictable.
4. Frequently check the fit clearance between the rear wheel fork cushion rubber sleeve, the wheel fork and the wheel fork shaft, because the lateral clearance between the rear wheel fork and the frame is required to be strictly matched, and the up and down movement is flexible. Only in this way can we ensure that the rear wheel fork and the frame can form an integral body without affecting the shock reduction effect of the rear shock absorber. The connection between the rear wheel fork and the frame is realized through the wheel fork shaft, and is equipped with a buffer rubber sleeve. Because the quality of domestic buffer rubber sleeve products is not very stable at present, it is particularly easy to loose. Once the joint is loose, the rear wheel will be displaced under the chain when the motorcycle starts or accelerates. The displacement is determined by the damage degree of the buffer sleeve. At the same time, when the motorcycle is accelerating or decelerating, the rear wheel will have obvious swing motion, which is also one of the important reasons for the damage of the chain gear plate. More inspection and attention should be paid to it.
5. Clean the chain and toothed disc regularly, fill lubricating grease in time, and strengthen the maintenance of the chain and toothed disc in rainy and snowy weather and muddy roads. Only in this way can the service life of the chain be extended.