Table 9 Parameters of sun gears, planet gears, and ring gears.
From: Performance analysis and optimization design of variant CR-CR 9-speed automatic transmission
Planetary designation | Sun gear | Planet gear | Ring gear | |||
|---|---|---|---|---|---|---|
Number of teeth | Pitch circle | Number of teeth | Pitch circle | Number of teeth | Pitch circle | |
First planetary row | 40 | 80 | 6 | 12 | 52 | 104 |
Second planetary row | 36 | 72 | 9 | 18 | 54 | 108 |
Third planetary row | 40 | 80 | 8 | 16 | 56 | 112 |
Fourth planetary row | 14 | 28 | 21 | 42 | 56 | 112 |
