Fits and Tolerances

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tny Member Join Date: Sep 2007 Posts: 6	Fits and Tolerances 10/06/2007 7:29 AM
	In a bearing drawing, I found a dimension as 28N6, can I know wat is the exact value of 28N6? Please send the standard chart also to refer.
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Mr. Truman Brain Guru Join Date: Mar 2007 Location: South-east corner of Spain 50 48 49.24N 2 28 27.70W Posts: 1508 Good Answers: 31	#1 Re: Fits and Tolerances 10/06/2007 8:23 AM
	Try this page This page is better for you! __________________ “It's kind of fun to do the impossible.” Walt Disney
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MOBI Guru Join Date: Aug 2007 Location: Australia Posts: 1630 Good Answers: 20	#2 In reply to #1 Re: Fits and Tolerances 10/06/2007 12:26 PM
	Hi Mr. Truman Brain, I stand corrected.....(I may even lay down)..........I thought that you can either use specified dimensions on the mating parts according to the class of fit (as per the table) or you have the general dimension and class of fit is specified, similar to surface finish symbol. __________________ TO BE. or NOT TO BE. That is the question!! The Bard
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Mr. Truman Brain Guru Join Date: Mar 2007 Location: South-east corner of Spain 50 48 49.24N 2 28 27.70W Posts: 1508 Good Answers: 31	#4 In reply to #2 Re: Fits and Tolerances 10/07/2007 10:12 AM
	Up you get man, this is not a doss house! It all comes down to the specific designer! Some put the actual tolerance, some put the ISO tol number ie N8! All boils down to what school you went to! As long as all parties use the same references ie ISO then the manufacturing machine can run smoothly! __________________ “It's kind of fun to do the impossible.” Walt Disney
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mrainey Member Join Date: Nov 2006 Location: Kings Mountain, North Carolina Posts: 8	#3 Re: Fits and Tolerances 10/06/2007 2:58 PM
	Here's an online ISO fit calculator. http://www.tecnologix.net/en/tools/passungsrechner/passungsrechner_v05.html __________________ Software For Metalworking http://mrainey.freeservers.com
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unclefastguy Power-User Join Date: Mar 2007 Location: In a mushroom field somewhere in Canada. Kept in the dark and fed sh--, well you know. Posts: 312	#5 Re: Fits and Tolerances 10/10/2007 6:54 AM
	Machinery's Handbook has nominal ISO fits listed in shaft and hole referenced charts. Very useful, let's you know which standard fits are used for sliding,transitional,locational and friction applications. __________________ Dirt is for vegetables. Pavement is for racing.
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Anonymous Poster (1); MOBI (1); Mr. Truman Brain (2); mrainey (1); unclefastguy (1)

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