It is ballscrew driven. They told me that they will mount a camera to the Z-Axis of the machine and place a target on some mounting fixture on the table. I would like them to make some random moves away from the target, in both X and Y directions and plot the standard deviation of the return...
I need to perform an acceptance test on a machine that has an X,Y table. The manufacturer says that it is repeatable to +/-0.00015". Does anyone have a document that they can share that specifies and acceptance test to validate Repeatability of an X,Y table?
Asked the manufacturer how they...
juergenwt,
Thanks for the post, but I think this is a standard gear, atleast from the data that I have already posted. Everything has already been calculated by my customer, I know how to fix the problem, my original question was what problems I could expect with things the way that they are...
The gears are mounted on steel pins that are pressed into an aluminum housing. The gears are made of 17-4SS. The operating range would be something like 0C to 30C.
The pinion1 is:
PA=20
PD=0.0875"
NT=14
FaceWidth=0.055" +/-0.003"
Mating Gear1 is:
PA=20
PD=0.3063"
NT=49
FaceWidth=0.035" +/-0.003"
This is the set that is on the 0.2" center distance. Both are AGMA 8. That is all the data on their drawings.
The second gearset has the same pinion and this...
The center distance tolerance is +/-0.0005", the gears are AGMA 8. The gears ride on pins 0.0394 +0.0003"/-0.0" and the bore of the gears are 0.0400-0.0407".
Is there any application where you would want the center distance between two spur gears to be greater than half of the sum of the two pitch diameters of the gear combination? I have a customer design where on one gear set in the gear train has a center distance of 0.177" and half of the sum of...
KENAT,
Sorry, the dividing line separting your signature from your post makes it look like another post. I appologize if I offended you, I didn't mean to. I appreciate your help. I did quite a bit of google searching before I came to this forum, the problem is defining what you are looking...
KENAT,
Thanks for your post, you might want to reread number 2 of http://www.eng-tips.com/faqs.cfm?fid=376 that you posted above.
Is there a standard that addresses this debate?
Drawoh,
We are trying to move towards CAD to CUT with our machine shop and trying to decide what makes the most...
If you are creating a 3D model that is going to be used to create a CNC program, how should the model be drawn in regards to the tolernacing. For example, if a diameter is 33mm +0.3/-0.0 how would you draw the diameter? Would you make it 33mm or dimension it at the center of the tolerance?
Thanks everyone for all the responses to this question, I knew that I would get a lot of good information out of this forum. It is difficult in that I can order gears all day long with just the information that I gave without any questions about any of the things that were brought up here. I...
My customer designed the parts. Is there a cross reference chart for AGMA to ISO 1328?
As I said, a Swiss company is making these parts and I don't have control over how they will inspect the parts. I provided them the gear information above and they asked me what the "Span" measurement was...
I have a spur gear that I need to calculate "Span" (Base Tangent Length). I found this website "http://www.meshingwithgears.com/cgi-bin/wwwboard/span.cgi", but I am unsure about "Backlash" in this tool. The gear specifies an Agma Backlash Class A, but when I enter this into the tool it gives...
