Matt51 -
+1 to that philosophy. In my design process, I found the AGMA standards and standardized modifications to be perfectly capable of providing the needed strength in the required size envelope.
I'm looking forward to the Buckingham book. Hopefully it will clarify all these issues.
The design requirements are to run a 19 and 31 tooth gear at a 2.50 center distance; by my logic, I would set the diametral pitch to (19+31)/2*2.5 = 10 , check strength, and adjust addendums accordingly. My...
This is not actually my design; I am working on a similar geartrain myself, using AGMA design standards that I understand. I like to stick with 20 and 25 degree pressure angles, and achieve strength through addendum shift and material choice.
But I have also been asked to evaluate this...
I just did the same, and you are right. I'm surprised the Dudley Gear Handbook doesn't make mention of this technique. I couldn't believe what I was seeing from this supplier at first, but it looks like I should get myself a copy of the Buckingham book and learn something new...
If it's not too...
Interesting...here is the data that the supplier has provided so far:
Pinion = 19 Teeth ; D.P = 9.69 ; P.A. = 30.57181
Gear = 31 Teeth ; D.P. = 10.2 ; P.A. = 25.0000
Operating on a center distance of 2.5000
That is exactly as he has specified. Hope you can make sense of it, and thanks for the...
I am dealing with a Chinese supplier / gear designer whose proposal for a geartrain includes several pairs of meshing spur gears with dissimilar diametral pitches and dissimilar pressure angles. I have found no reference in Dudley's Gear Handbook, our company's internal references, my college...
MITCalc is very conservative for sure. I agree with "you get what you pay for"...for $300 it was worth trying. It's almost worth $300 to have something that can crank out accurate CAD models as quickly as MITCalc can. But you're totally right.
I might lobby for the KISSSOFT package if it looks...
I'm designing a light duty gearbox based loosely on an existing unit purchased from an outside vendor. It exclusively uses PM spur and bevel gears, made of a relatively strong alloy (FL-4405 or 5305 with heat treating.)I'm using MITCalc, as well as Dudley's Gear Handbook, in the gear design...
