Jermey Harris wrote:Luckily, there is a fixed relationship (for a PM motor) between the voltage constant, Kv, and the torque constant, Kt. If you know Kv you can work out Kt fairly easily. Here is the formula, for Kt in N-m per amp:
Kt (N-m/amp) = 9.5478 / Kv
so, if you have a PM motor with a Kv of 50, then it's Kt = 9.5478 / 50 = 0.191 N-m/amp
damonjackson_spl wrote:I am ordering my the one way bearings for my single stage reduction..
I have found a good bearing but I want to see if it is up to the job..
I got the equation to calculate the nm of torque for the single reduction but I need the torque rating for the motor?
I have googled it with poor results..
anyone know the torque?
dontsendbubbamail wrote:How about a link to the bearing you found?
dontsendbubbamail wrote:The clutch that you found needs to run on a hardened shaft and the motor shaft on the 80-100 is not hardened. Several years ago I looked at this type of clutch, but they did not calculate out to be strong enough for a single stage system. I not a mech eng so maybe I calculated wrong.
mainsource wrote:am in Canada but i should still be able to access mc master karr (presumably thats the company to which you refer?)... did you actually turn the 15T to accept 12mm yet?,, did it turn out ok (regarding room for set screws etc)?
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