Standard Applied Weight Tolerance 2

[Poston]

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.

 

[rb1957]

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" ?

 

[Poston]

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

 

[Poston]

RB1957, you are correct, axial lash is considered backlash.

 

[rb1957]

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

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

 

[40818]

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.

 

[MintJulep]

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

 

[KENAT]

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...