|
Power is the key...
You can always gear a motor to do whatever you want (move a 90 lbs robot for example).
The real question involves power -- basically, speed times torque.
If you want your robot to accelerate or if you need a certain top speed, you need not just torque, not just speed but speed times torque or POWER.
The peak power of the drill motors and the Chiaphua motors is approximately 300 Watts. Two of these (600W) are pretty good for driving around a FIRST type robot. Many like more than that (say a drill and a Chiaphua per side -- 1200 Watts!).
By comparison, the motors you are showing are probably closer to 150W each. Good but not really great. You will have to compromise speed or torque if you only have 1 per side driving your robot.
ALSO, these motors are very small, yet have relatively large amount of power. Be very careful not to run them too close to stall for too long. The small size means that they will heat up MUCH faster than the drills (and especially the Chiaphua's) for the same amount of electrical energy lost (that means HEAT).
I know from experience that these motors are pretty easy to toast in a short time if you really pound the current into them.
Good luck.
Joe J.
|