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Unread 26-01-2004, 12:09
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Mike Betts Mike Betts is offline
Electrical Engineer
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Re: Help with gear ratio

Quote:
Originally Posted by Wayne C.
What rpms do they run at im looking at spec sheet and i understand what its saying but i dont no what to use for rpms
The free speed is valid only at no load (including no frictional losses).

Look in the white paper section for a few excellent papers on how to calculate speed.

In general, design to 1/2 of the free speed and 1/2 of the stall torque.
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Mike Betts

Alumnus, Team 3518, Panthrobots, 2011
Alumnus, Team 177, Bobcat Robotics, 1995 - 2010
LRI, Connecticut Regional, 2007-2010
LRI, WPI Regional, 2009 - 2010
RI, South Florida Regional, 2012 - 2013

As easy as 355/113...
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