File Name: iso hole and shaft tolerance chart .zip
The usage of these tolerances is advised for economic reasons. Note: For economic reasons, the first choice for a fit should, whenever possible, be made from the tolerance classes shown with green color. ISO Symbol. Hole Basis. Shaft Basis.
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 Link to this page:. Now also available on-line at the site shown below. Tolerance Zones for holes are shown in Fig. A cost penalty for material stock, tooling and gages is anticipated for sizes marked with "S" Second Choice and "T" Third Choice.
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A tolerance is described using a letter followed by a number. The increase in cost is dramatic for the small tolerances and fine finishes. Application of ISO fitting and limit chart, H7. Mechanical Dimensions 5 Unit : mm. As you activate the edit maximum interference area, the text of the corresponding dimension in Tolerance Zones area is highlighted. Length according to EN
hole and for the shaft that are to be applied to the basic size to obtain the limits of Table Tolerances Related to Machining Processes. ISO Symbol. Hole.
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