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gear design

gear design

gear design

(OP)
Hi Everybody,
I posted a question about gear design on a physics forum,unfortunately I didn't get any reply.
Here is my question:

I have to design 3 gear assemblies which run a switchgear inside an enclosure. Here I attach a drawing for one gear only(for a similar project). I have to do my calculations and select the diameter, length, cross section, material...etc. for the  linkages, shafts, axles, chains, ball joints and frames. Dimensions shown on drawings have to stay the same because they are related to the enclosure dimensions.
I was provided with the following information:

The linkage is tested at 5000 Lbs (1100N).
For this Torsion bar manual operator, the force is 250 N min and 450 N max.
 Any information will be helpful.I need to start somewhere.

Thanks in advance.
Delimashare
Special thanks to zesti,trashcanman,quark,hollandhvac,willard3,KiwiMace,Chasbean1 and walkes for their valuable help in a previous posting.
 

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