Gear processing parameters: what is the index circle diameter?

common problem:What is the pitch circle diameter?

Reply:In the past, the pitch circle diameter was called the reference pitch diameter.Recently, it is uniformly called the pitch circle diameter according to the ISO standard.The index circle diameter is the reference diameter of the gear.The index circle diameter is equal to the product of the number of teeth and the modulus (end face).The modulus and the number of teeth are the two major factors that determine the size of the gear.If you have any unclear points or related processing needs, you can consult EP free of charge.