The tooth profile of the motorcycle sprocket must ensure that the chain enters and exits the mesh smoothly and energy-savingly, minimizes the impact and contact stress of the chain link during meshing, and must be easy to process. The commonly used motorcycle sprocket end face tooth profile is composed of three arcs and a straight line, referred to as three arc-straight tooth profile.
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The tightness of the motorcycle sprocket should be appropriate. Too tight will increase power consumption and the bearings will wear out easily; too loose the sprocket will easily jump and fall off the chain. The tightness of motorcycle sprocket is: lifted or pressed down from the middle of the chain, which is about 2%-3% of the center distance between the two sprockets.
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