Tooth pitch refers to the distance between two adjacent teeth, that is, the distance from the top of the tooth to the next tooth tip. Module is a commonly used parameter in gear manufacturing, indicating the ratio of the number of teeth of the gear to the diameter of the index circle. There is the following relationship between the tooth distance and the modulus: the tooth distance is proportional to the modulus: in the case of the same modulus, the greater the tooth distance, the wider the tooth of the gear, the smaller the load borne by each tooth on the gear, the stronger the transmission capacity. On the contrary, the smaller the tooth spacing, the narrower the teeth of the gear, the greater the load borne by each tooth on the gear, and the weaker the transmission capacity. The modulus determines the size and shape of the gear: in the case of the same number of teeth, the greater the modulus, the larger the diameter of the index circle of the gear, and the larger the overall size of the gear. The smaller the modulus, the smaller the diameter of the index circle of the gear, and the smaller the overall size of the gear. The tooth distance varies with the number of teeth, but in a certain modulus range, the tooth distance is proportional to the number of teeth. To sum up, there is a certain relationship between tooth pitch and modulus, according to the design requirements and gear transmission requirements, the selection of appropriate tooth pitch and modulus is an important consideration for gear design.
