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Standard Applied Weight Tolerance
2

Standard Applied Weight Tolerance

Standard Applied Weight Tolerance

(OP)
I am testing a unit that requires a 50 lb reversing load in order to test axial lash.  The test instructions say only to apply 50 lbs, they do not give any tolerance.  Does anyone know of a standard weight tolerance that would apply in this situation?  Where would I find that standard?

Thanks in advance.

RE: Standard Applied Weight Tolerance

my 2c says that this is a pretty nominal number and plus/minus 10% shouldn't be a problem (unless that's too tight for you !).

you might ask the manufacturer if it'd be a problem to exceed the 50 lbs

btw, "lash" = "back-lash" ?

RE: Standard Applied Weight Tolerance

(OP)
Unfortunately, contacting the manufacturer is not an option because they are competitors of ours.  By my calculations, we are appling approximately 46 lbs, which would fall into the +/-10% that you suggested.  Do you know of any specification, such as a MIL Spec or other document that might cover this issue?  That would be helpful when I issue my final report.

Thanks so much

RE: Standard Applied Weight Tolerance

(OP)
RB1957, you are correct, axial lash is considered backlash.

RE: Standard Applied Weight Tolerance

can't think that Mil-Spec would define this,

i think most people would accept that 46lbs is close enough to 50 lbs.

RE: Standard Applied Weight Tolerance

Why would you need to tell the manufacturer that your a competitor? Just ask the question and if need be then you could be somewhat evasive with the truth. Whats the worst that could happen, you could just hang up.

RE: Standard Applied Weight Tolerance

Why would any standards development organization want to develop a "standard" that applied to a specific test of a specific manufacturer's specific equipment?

RE: Standard Applied Weight Tolerance

Actually, while it may not apply in your case I do recall some nominal % tolerance for linear dimensions and weights when looking at AEII and the like.

I think it was +-5% but can't recall for sure.  We'd use this when doing calcs on aircraft stores.

KENAT, probably the least qualified checker you'll ever meet...

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