Planetary gear reducer is a small volume, wide range of reduction, high precision reduction device, which is often used in mechanical equipment, industrial automation transmission and other applications. In the specific use process, you can choose different reduction ratios to meet the corresponding speed and torque requirements. If you need a lower speed, you can choose a planetary gear reducer with a larger reduction ratio. However, if you want to choose a reducer with a suitable reduction ratio, you need to perform reduction ratio calculations.
To calculate the gear ratio of a planetary gear reducer, various factors need to be considered, the main influencing factors include transmission ratio, gearbox efficiency, power and speed torque, current, and the relationship between efficiency.
Formula: n1/n2=i
Planetary gearbox: Stage 1: i=(Number of teeth on internal gear/Number of teeth on sun gear)+1
Multilevel: i = i1 * i2 * i3 ...
Planetary gearbox: level: η=0.9*0.9*(normal ST28P\ST32P\ST36P\ST42P are calculated according to this)
Multistage: η=η1*0.9 where n is the number of stages