Thread: Dewalt 3 speed gear ratios ?
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Unread 30-01-2011, 16:23
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Re: Dewalt 3 speed gear ratios ?
We are using the Dc940ka gearbox with the FP motor. An unofficial source estimates the no load rpm of the dewalt motor to be about 20,000 rpm (about same as FP motor fyi), so estimating with the posted dewalt specs (2000, 1450, 450) I am guessing the gear reductions are about 1:10, 1:14, 1:44.5. These are pretty close to the nothing but dewalt specs. I am not certain of my calculation so I am ordering a few different size sprockets in case that I am wrong.