What size do we usually refer to as gear diameter? What is the diameter of the dividing circle or something else? ThanksWhen we buy gears, say "50mm in diameter". What size is this 50mm?
Diameter "50mm", this 50mm is the diameter of the pitch circle, such as 1 modulus, and the number of teeth is 50 teeth. Such as the 2 modulus, the number of teeth is 25 teeth.
The diameter of the reference circle is the diameter of the circle as a theoretical calculation. It's the modulus * the number of teeth. When you buy gears, you need to talk about the modulus * the number of teeth, but not the diameter.
It should be the outer diameter of the gear. The diameter of the dividing garden is used to calculate the modulus of the gear.
