Echo Steel Truss Bridges
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Manufacturing and Engineering Tolerance Charts

Manufacturing Knowledge Menu
Geometric Dimensioning and Tolerancing Resources

The links contained on this page are tolerance charts that I use in my design activities.  Please use with judgment, as your particular design requirements may be less or more stringent.

Notes:

For sizes, .060(#0), .086(#2) composite tolerancing (see ANSI or ASME Y14.5M) is recommended.  Pattern to DRF tolerance dia. .014 or looser (greater).

In applications where recommended positional tolerance is less than dia .012 for either clearance or tapped hole.  The use of flat washers with increased clearance holes sizes should be considered.

Tolerance Charts

Description

Positional & Limits of Size
International Tolerance Grade Chart
Slip & Press fit
Hole - Fastener Fits
Hole - Fastener Fits

Shaft - Hole

Fixed & Rotating, Class I, II, III, IV, V
Hole - Fastener Fits

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