Trust Machine Shop On Bearing Clearance or Plastigage?
#21
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#22
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Point taken. We refer to these measurements differently in aviation then. 0.0001" tolerance would be referred to the ten thousands of an inch since it's called 1 ten thousandths of an inch. Bearing clearances between 0.0035" and 0.0025" would require a tool tolerance to the ten thousandths of an inch.
#23
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This should help make it easier.
10(ten) 100(hundred) 1,000(thousand) 10,000(ten thousand) 100,000(hundred thousand)
. decimal
.1(tenth) .01(hundredth) .001(thousandth) .0001(ten thousandths) .00001(hundred thousandths)
For me, I would say this, .285 as two hundred eighty five thousandths or .0008 as eight ten thou or .00002 as, **** it... its within a couple hundred thou.
10(ten) 100(hundred) 1,000(thousand) 10,000(ten thousand) 100,000(hundred thousand)
. decimal
.1(tenth) .01(hundredth) .001(thousandth) .0001(ten thousandths) .00001(hundred thousandths)
For me, I would say this, .285 as two hundred eighty five thousandths or .0008 as eight ten thou or .00002 as, **** it... its within a couple hundred thou.
#24
Just realized it was a bare block and rotating assembly, and he will be assembling it. If that is the case, then yes he should check all clearances as he assembles it.
#27
Yea i think any trained machinist would laugh if someone called a "tenth" 1 ten thousandths of an inch. Depending on the object a "tenth" is a 0.1" or a 0.0001". If your talking 'bout washers/shims a "tenth" is 0.1" or 'bout a brg clearnce its 0.0001". If u walked into a real machine shop saying 1 ten thousandths of an inch they would know your a wanna be right away and wouldnt let u touch their machines. Probably sell u a lot of work u dont need too. And charge u for work they didnt do because u wouldnt know the difference either.
#28
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Yea i think any trained machinist would laugh if someone called a "tenth" 1 ten thousandths of an inch. Depending on the object a "tenth" is a 0.1" or a 0.0001". If your talking 'bout washers/shims a "tenth" is 0.1" or 'bout a brg clearnce its 0.0001". If u walked into a real machine shop saying 1 ten thousandths of an inch they would know your a wanna be right away and wouldnt let u touch their machines. Probably sell u a lot of work u dont need too. And charge u for work they didnt do because u wouldnt know the difference either.