What does the motorcycle balance shaft mean?

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Balance shaft technology is a widely used technology in motorcycle engines. Its structure is simple and practical, which can effectively reduce the overall vibration of the motorcycle and improve driving comfort. The following is a related introduction about the balance shaft: 1. Principle overview: The motorcycle balance shaft uses the reverse vibration force generated by the eccentric weight to make the engine achieve good balance and reduce engine vibration. 2. Detailed principle: In the working cycle of the engine, the movement speed of the piston is very fast and very uneven. At the top and bottom dead center positions, the speed of the piston is zero, while in the middle position between the top and bottom dead centers, the speed reaches the highest. Since the piston makes repeated high-speed linear movements in the cylinder, it will inevitably generate a large inertial force on the piston, piston pin and connecting rod. The counterweight configured on the connecting rod can effectively balance these inertial forces. However, only the balance shaft on the connecting rod has part of the moving mass participating in linear motion and the other part participating in rotation. Except for the top and bottom dead center positions, various inertial forces cannot be completely balanced, causing the engine to vibrate.