Dynamic Analysis of Helical Planetary Gear Sets under Combined Force and Moment Loading

Table 1

Basic design parameters of the example gear train.

Parameter	Sun	Ring	Planet
Number of teeth	23	73	24
Module (mm)	1.47
Pressure angle (°)	17.5
Helical angle (°)	15.5
Face width (mm)	18	20	19
Root diameter (mm)	31.25	114.61	32.45
Outside diameter (mm)	39.59		40.79
Minor diameter (mm)	—	106.81	—
Tooth thickness (mm)	2.58	2.67	2.48
Backlash (μm)	74