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Prex, Not sure how the xcalc site works. So far all the calcs are useless because they cannot be manipulated. I registered and followed the instructions....Nada.

Any of you guys have a program that will calculate reaction forces for a plate with 4 supports in the x-y plane?

good times Terry. We are all here for one reason to get and give help to and from those who know more, and less about a topic.

Terry, Sheesh dont take it personal. Okay they are both very high precision applications. that is all i meant . But you might want to think twice before making the assumptions that cost, life and weight are basically opposite from your application. I can see the misalignment factor, but that is...

My application would be analogous to the aerospace industry. I design machine tool spindles. This one happens to be huge(60 taper). Unfortunately, there is no way I will be able to keep this shaft in an oil bath. I could use the Kluber grease from time to time though at maintainence intervals...

Thanks tbuelna. I came up with .002mm of crown @ about .1deg misalignment. That is a good sanity check for me. However I have a 36t module 3 spline. So i can get away with a little more crown. Is your calculation a stright up Hertzian calc, or was it from the machinery...

the effective spline engagement is 90mm. 8750N-m 2800rpm

Has anyone ever heard of crowming a metric module spline? My client is insisting on a crowned spline , but I am hesitant to accomodate. Unlike the ANSI 92.1 DP spline, the calcs for the metric module 92.2 include lead and profile deviations for machining based on the class. Also crowning is not...

Gearcutter, That is what is in the machinists handbook, and what I am using to get shear safety factors and such. But it really doesn't take into account the endurance limit of the material. My case I am using 9310 AMS 6260. In many mechanical engineering cases. You can have a saftey factor...

I just spoke With Amir at agma. There currently is no standard that covers fatigue life for involute splines. SAE b92.2 metric module has some tensile and compressive stress stuff, but does not cover fatigue. For as long as involutes have been used i find it very hard to believe nothing is...

ok. Can any of you tell me what AGMA standards include. Predicting fatigue life for spiral bevel gears,and involute spline couplings. I think they might be AGMA2003-c10 for the bevel gears , and AGMA 2101-d04 for the spline couplings ,. But am not 100% sure

Hi guys, I am wondering what the discernable differences are when calculating fatigue life of an involute spline opposed to a spur gear. All of my refs point to spur gears, and I wonder how the results would compare. I have come up with a very involved program to calculate all the stresses...

Call these guys in PA. http://www.xaloy.com/sales.html I used to do business with them. They deal in fairly exotic materials. They may be able to help. If you want nitralloy, you might want to consider hard facing, then grinding. Or pick a material that can be carburized.

You probably don't have a machine design text, so what I just told you wont do you any good, or mean anything to you. It's really not that complicated, but you definitely need an M.E., or a Shigley's, and a good learning ability. By the way... You work for a small company don't you? Asking you...

Torque of a rotating particle = I*alpha. moment of interia x angular acceleration. Make sure you use the right units. Just make sure you pick a motor with a higher breakdown torque than what is required at 100% duty cycle , and you will be home free. Not knowing exactly what you are dealing...

you can enter any pin size you want to at the di , and de section to the right in inches

OR YOU CAN CONVERT YOUR 92.1 TO THE METRIC MODULE AND USE THE PROGRAM I WROTE IN THE THREAD RIGHT BELOW THIS ONE. THEN CONVERT THE #'S BACK TO ENGLISH

Buy the standard. And by the way. the major diameter(int)can never be smaller than the major diameter(ext). the most important piece of the puzzle is the tooth thickness. The machinist handbook should not be trusted.

It took quite a bit of work. And by the way. DO NOT USE THE MACHINIST HANDBOOK FOR A SPLINE. Buy the std. I found numerous typos within the section that if i did not have reference spline data from 92.2 the calculations would have never been correct. Max material is specified by the tol's on the...

You could run both axes from one motor with 2 gear sets on the motor shaft. you would need to adjust your ratios for proper angular velocity. However if you wanted to be able to turn off and on the drums you would need a clutch or 2 motors. The end of the shaft turning the drums would have a...