Motorcycle chains and sprockets are important components of the transmission system, and their performance directly affects the vehicle's power performance and user driving experience. Max Trading only sells motorcycle chain and sprocket with good quality in China. The combination of motorcycle chain and sprocket as the transmission system, through collaborative cooperation and buffering, efficiently transmits the strong power of the engine to the rear wheels. Its performance directly affects the acceleration response, fuel economy, and driving stability of the vehicle.
Motorcycle chains are not simple, they are composed of precision small parts such as inner chain plates, outer chain plates, pin shafts, sleeves, and rollers. These components are rigidly connected to form a closed-loop structure, ensuring uninterrupted power transmission. The main function of a chain is to transfer the power of the driving sprocket at the output end of the engine to the driven sprocket at the rear wheel. During their interlocking process, power can be transmitted steadily, allowing the motorcycle to run.
In motorcycle chain, roller chains are the most common on the market. When the roller chain is in operation, the rollers and sprocket teeth are in rolling contact, which can greatly reduce friction, and the transmission efficiency can exceed 90%. Most ordinary car models such as street cars and cruise cars use it. There is also a type of toothed chain that has a special toothed chain plate that can mesh well with the sprocket. When running at high speeds, the toothed chain performs more smoothly, with noise levels about 30% lower than roller chains. High performance sports motorcycles or models with high noise requirements often use toothed chains. However, the manufacturing cost of toothed chains is high, so they are not as widely used.
The specifications of motorcycle chains are divided according to the size and quantity of chain links, and common models include 415, 420, 520, etc. The larger the model number, the greater the carrying capacity of the chain. Like the 520 type chain, the single section tensile strength can exceed 20000 Newtons, and it is completely feasible for large displacement motorcycles to use it to transmit power. In terms of material selection, good motorcycle chains are generally made of high-strength alloy steel and undergo carburizing and quenching treatment. After processing, the surface hardness of the chain can reach a Rockwell hardness (HRC) of 50-60, which makes the chain both wear-resistant and fatigue resistant.
In daily maintenance, the tension check of the chain is particularly crucial, and the standard deflection should be maintained at 15-25mm. Overly loose tension can easily cause tooth jumping, while overly tight tension can accelerate component wear; It is recommended to clean the chain every 500 kilometers and apply special lubricating oil to prevent sand and dust from entering between the rollers and sleeves, causing abrasive wear. If it is found that the elongation of the chain link exceeds 3% of the original length, or if there are roller breakage, chain plate deformation, etc., the chain must be replaced immediately.
Sprockets are divided into motorcycle driving sprockets (small sprocket ) and motorcycle driven sprockets (large sprocket s). The active sprocket is connected to the engine output shaft through a spline and directly receives power; The driven sprocket is fixed on the rear wheel hub and rigidly connected by bolts. The size difference between the two makes the transmission ratio. Usually, the driving gear wheel has 14 to 17 teeth, and the one being driven has 42 to 50 teeth. This gear ratio can change the engine's high speed into a big turning force for the back wheels, getting the "slow down the speed and boost the turning force" effect. For instance, a 15:45 transmission ratio means the engine spins 3 times while the back wheels spin just once, but the turning force gets 3 times stronger.
In terms of material selection, ordinary motorcycle sprockets are usually made of 45 steel and undergo quenching and tempering treatment, with a hardness of HRC25-30; The sprocket of high-performance models will be made of alloy materials such as 20CrMnTi. After carburizing treatment, the tooth surface hardness will be increased to HRC58-62, and the wear resistance will be improved by more than 50%. In terms of processing technology, precision milling technology is used to control the tooth profile error within 0.05mm, ensuring perfect meshing between the motorcycle sprocket and chain, effectively reducing impact noise.
During installation, the active sprocket needs to ensure a tight and seamless fit of the splines, otherwise it may cause uneven power transmission; The installation of the driven sprocket must ensure that it is concentric with the rear wheel. If the eccentricity exceeds 0.1mm, it will cause driving vibration. When replacing the motorcycle sprocket, it is recommended to replace it synchronously with the chain to avoid premature failure due to different degrees of wear between new and old components.
Max Trading, while ensuring quality, compresses costs by optimizing the supply chain and improving efficiency. Adhering to the principle of "cost pricing and reasonable profit", it firmly opposes inflated pricing and price tricks, and achieves the high cost-effectiveness advantage of "lower price for the same quality, better quality for the same price". For long-term cooperative customers, Max Trading provides bulk purchase discount policies, allowing customers to enjoy high-quality products while reducing procurement costs and increasing operational profits. Max Trading firmly believes that only by truly solving problems from the customer's perspective can long-term win-win outcomes be achieved. Looking forward to working with you to provide you with cost-effective products and worry free supply services, helping your business continue to grow and expand.
