Concept of tooth profile 3
The topic of tooth profile is still being discussed.
We'll keep looking at P2 for a little longer. If the gear range from A to C is considered the motion state of a particular gear, it is just a moving tooth. The matching gear's speed will fluctuate over time. That is to say, the angular velocity is not constant.
Assume that if a gear spins more than one revolution, its transmission ratio is inversely proportional to the number of teeth, but the contact points of the teeth between each of its tiny components will occasionally slide, sometimes fast, sometimes slow. As a result, there will be vibration and noise during operation.
When the tooth profile is trapezoidal or triangular, this might also happen.
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