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Posted by Mike Young on December 7, 2005, 8:07 am
>> You can calculate operating torque from the motor's torque
>> constant (torque/current) and either the continuous horsepower or
> continuous
>> current rating.
> One web site gives the following specs for the EV Warrior motor. But the
> term "ozf.in/A" is confusing to me.
> It's the "f" in there that is confusing ... what's it mean ? ( I
> understand
> oz-in. )
One presumes ozf is analogous to lbf, pound force, as distinguished from
pound mass. 'ozf' would then be ounce force, which is the same as ounce.
ozf.in/A is then oz-in/A.
Note that they specify for "clockwise rotation". Brushed DC motor
performance is strongly dependent on commuatation timing, advance or retard.
These values likely don't apply if your application is bi-directional.
> Specifications for clockwise rotation: Motor only performance.
> Typical system performance.
=======
Matt, given this motor's Kt, Kv, and no-load specs, what do you think about
gearing for this motor for:
]]> - For example, to get 1Kg up a 1m, 45 degree hill in 1s takes 7N of
force at
]]> a speed of 1.44 m/s.
]]>
]]> - Applying a 10 Kg push through a distance of 1 m in 10 seconds is 100N
at
]]> 0.1m/s
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> 691 oz-in. at 12vdc.
> What can I surmise that the "operating torque" is, based on that ?