Speed Reduction ratio
For each motor, there are several types of speed reduction ratio:
Speed Reduction ratio |
Motor type 1 |
Motor type 2 |
Type A |
150.27 |
201.3 |
Type B |
173.22 |
130.85 |
Type C |
50.61 |
|
Type D |
36.24 |
|
The table below lists the motor type and reduction ratio for each joint in NAO - V. 3.3:
Head
Joint |
Motor |
Reduction ratio |
HeadYaw |
Type 1 |
Type A |
HeadPitch |
Type 1 |
Type B |
Arms
Joint |
Motor |
Reduction ratio |
ShoulderPitch |
Type 1 |
Type A |
ShoulderRoll |
Type 1 |
Type B |
ElbowYaw |
Type 1 |
Type A |
ElbowRoll |
Type 1 |
Type B |
Hands
Joint / Actuator |
Motor |
Reduction ratio |
WristYaw |
Type 1 |
Type C |
Hand |
Type 1 |
Type D |