Thread: Running Banebots Transmission in Direct Drive
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Unread 27-01-2007, 22:20
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Re: Running Banebots Transmission in Direct Drive
CIM free RPM = 5500-5750 (depending on which individual motor you test)

Reduction = 12:1

Output Shaft RPM = 5500-5750/12 = 458-479

Speed with a 6" wheel = 458-479 RPM / (60 sec/min) * (2*pi*3") / (12 in/ft) = 12-12.5fps

Speed with a 8" wheel = 458-479 RPM / (60 sec/min) * (2*pi*4") / (12 in/ft) = 16-17fps

Keep in mind that those are numbers assuming FREE SPINNING RPM. In reality, we find the loss to be about 25%, so with a 6" wheel you can expect a speed of about 9-10 fps and the speed with an 8" wheel to be about 12-13 fps.