Transcription of Chapter 6 The ISO System of Limits and Fits - Tolerances ...
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Chapter 6 The ISO System of Limits and Fits - Tolerances ...
Chapter 6 The ISO System of Limits and Fits - Tolerances and Deviations SUMMARY* The ISO System of Limits and Fits is a coordinated System of hole and shaft Tolerances for engineering and manufacturing used for cutting tools, material stock, gages, etc. If held to these Tolerances , cutting tools, material stock, and gages are generally available throughout the world. The hole basis fits have four preferred hole Tolerances (H11, H9, H8, and H7); the shaft basis fits have four preferred shaft Tolerances (h11, h9, h7, and h6) as shown in Table 6-1.
Tolerance Zones for holes are shown in Fig. 6-1 and for shafts in Fig. 6-2. NOTE *Complete ISO System of Limits and Fits is now stored a CD KOK ISOTOL TM Computer Tolerancing Software. The CD is
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