(Image Source: vibanalysis.co.uk)
If, like me, you read Gear Solutions magazine regularly, then you probably have read the "Tooth Tips" section before, and are probably aware of how smart of a guy William Crosher is. The reason I like his articles is because he doesn't dumb down the language for non-engineers. If you want to follow his articles, you have to be part of the industry, and that's just fine by me. The recent issue of Gear Solutions' "Tooth Tips" article is about the importance of roughness and surface finish as they relate to the longevity and effectiveness of a gear assembly. Without getting into great detail (he does, you can read the article if you want to get the full scoop), his basic point, in his own words, is as follows:
"There is no relationship between gear quality and surface finish in AGMA standards. An AGMA document on gear tooth surface texture (AGMA906A94) is a guide to surface finish. Unfortunately, there are still many who do not realize the significance of the surface finish on tooth flanks and believe -quite incorrectly- that it will be a self-correcting condition. Tests have indicated that the rubbing of any two surfaces reduces the initial roughness by no more than 25 percent."
Another point Crosher makes is that in order to achieve more accurate results, one must be aware of the "cutoff". There are several types of gears that have surfaces with many deep valleys, and its important to remember that flank surfaces should be measured in one direction, going from the tip to the root. Crosher's article is important because it discusses the need for standardization of further processes by AGMA while giving logical assessments of the importance of measuring roughness and surface finish. I always like an article that can make a process more efficient - they always end up saving me money.
To read Crosher's article, click here:
To find out more about recent developments in gear manufacturing technology, check out Gear Motions:
1 comments:
warm Greeting
Have you been thinking about the power sources and the tiles whom use blocks
I wanted to thank you for this great read!! I definitely enjoyed every little bit of it and I have you bookmarked to check out the new stuff you post.
Bevel Gears
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