What parameters are required for gear reducer selection

When selecting a reducer for automation equipment, attention should be paid to parameters such as torque, power, efficiency, and working coefficient, 

mainly as follows:

1. Rated torque Mn2 [Nm]: The value measured when the torque acts on a continuously and smoothly running reducer with a working coefficient fs=1;

2. Required torque Mr2 [Nm]: Based on actual requirements, the value is equal to or less than the rated torque Mn2 of the reducer;

3. Calculate torque Mc2 [Nm]: To consider the actual required torque Mr2 and the working coefficient fs, calculate using the following relationship: Mc2=Mr2 · 

fs ≤ Mn2;

4. Rated input power Pn1 [kW]: The power (kW) value of the reducer during safe operation, listed in the parameter table. It is obtained when the speed is equal 

to n1 and the working coefficient fs=1;

5. Rated output power Pn2 [kW]: The output power value of the reducer, which can be calculated using the formula, Pn2=Pn1 · η d;

6. Dynamic efficiency [η d]: The relationship between dynamic efficiency and output power P2 and input power P1, where η d=P2/P1;

7. Static efficiency [η s]: The efficiency at the beginning of the gearbox start-up. Although it does not have practical significance for continuous transmission, 

it is crucial to choose a gearbox with intermittent transmission;

8. Working coefficient [fs]: The working coefficient (fs) of the reducer mainly depends on the operating conditions of the reducer. In order to select the most 

suitable working environment coefficient for the correct combination; Must consider: the load form of the reducer, working time, and start-up frequency.