Man, this is harder than I thought - these servo vendors sure don't like to make things easy for us. What the heck is an ounce inch? seconds per 60 degrees? Seriously? I miss newton meters and radians per second
I poked a bit at some of the servos that have been legal in the past to see if my calculation method was ballpark valid. First I converted to Nm and rad/s and then multiplied to get Nm/s (W). I used whatever the companies advertised for 6V.
HS-475HB:
76.0 oz-in Stall
0.18 sec/60° No load
.536 Nm, 5.81 rad/sec, 3.12 W
HS-332HD/HS-325HB
51.0 oz-in Stall
0.15 sec/60° No load
.360 Nm, 6.98 rad/sec, 2.51 W
From this, it looks like no load * max torque
might be the formula they use. Wouldn't hurt to officially ask.
Also, can someone please please please check my math? Its quite possible that I dropped something during unit conversion.
That statement makes far too much sense for me to understand it. - Aignam [more] 
12-01-2011, 16:49
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