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Unread 06-02-2012, 20:45
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Re: Are these servos legal?

Quote:
Originally Posted by Dale View Post
I'm confused about the units here. If torque is measured in oz/in and speed in rpm how does the result in watts? I'm looking a servo that has 172oz/in of torque and 72rpm no load. Is that legal?
Watts have units of N-M/s (among many). Convert your torque to N-M, and your rotation rate to radians/sec, (remember that radians are dimensionless) and it all works out. By my calculation, those servos are around 9W, using FIRST's formula.