Frequently Asked Questions: What is the pitch circle diameter?Answer: 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.

Frequently Asked Questions: What is the gear modulus?Answer: The modulus is the ratio of the pitch of the pitch to the circumference (π), and the unit is millimeter (mm).The modulus indicates the size of the gear teeth.

Compared with non-standard gears, the standard gears m, a, h*a, c* are the standard values, and s=e=p/2 products have the following characteristics for reference.