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Unread 25-04-2016, 12:19
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Re: Calculating optimal weight efficiency ratios

Quote:
Originally Posted by asid61 View Post
Wouldn't the rotation speed of the gear also come into effect (hence why I said mech. power)?
I think we are really quibbling on terms. As you said knowing speed and power will start you on the way. Ultimately we need to get to contact force on the gear tooth which give will you the stress and strain in the material. Way more complicated than my ability to explain in a short post. For FRC (Brushed DC motor) worst case scenario would be at near stall where you are transmitting maximum torque but relatively little power. By comparison at max power the gear set is relatively lightly load.

Other threads on CD are talking about the WCP gearboxes stripping their third stages. I have not seen this personally so I am just speculating. But I think with big wheels, six cim drives, and near stall conditions, we are seeing the limits gear sets we are using.
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