ISO-12129-1-1995.pdf
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1、INTERNATIONAL STANDARD IS0 12129-I First edition 1995-04-01 Plain bearings - Part 1: Fits Paliers lisses - Partie 1: Ajus temen ts - - qggi# z + 0,8; 1.12; 1,32; 1,6; 1,9; 2,24; 3.15. 5.4 Symbol The symbol for the mean relative bearing clearance is $,. In view of the method of lettering with data pr
2、ocessing and on typewriters, the letters PSI are used instead of the Greek letter I). 6 Ranges of nominal dimensions The ranges of nominal dimensions are more closely stepped than in IS0 286-2 so that the maximum de- viation from the mean relative bearing clearance $,., can be more closely adhered t
3、o. 7 Deviations The deviations for the shafts are given in table 1. 8 Minimum and maximum clearances The minimum and maximum clearances between the shaft and bearing bore, together with the deviations for the shaft which are required for the calculation of the plain bearings, are given in table 1. 9
4、 Example Shaft fit dimension 200 mm for a mean bearing clearance I), = 1,12 %O. 02OOPSI 1.12 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/26/2007 00:43:01 MDTNo reproduction or networ
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- ISO 12129 1995
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