Compliance with ISO standards ensures that manufactured parts pass international quality audits and fit perfectly with third-party global components. Summary of Common ISO 286 Fits Application Hole Tolerance Shaft Tolerance Resulting Fit Type Free Running / Loose Sliding / Location Precision Location Close Clearance Push / Hand Fit Transition Tight / Press Fit Interference
The standard, titled "Geometrical product specifications (GPS) — ISO code system for tolerances on linear sizes," is the international reference for linear tolerances used in engineering and manufacturing. It provides a standardized system for defining the limits and fits of machined parts, specifically for cylindrical features (holes and shafts) and parallel surfaces (slots and keys). Structure of the Standard The standard is divided into two primary parts: iso 286 pdf
: H7/g6 (also called a "sliding fit") — not intended to run freely, but to move and turn freely and locate accurately. Structure of the Standard The standard is divided
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The size at which the part contains the maximum amount of material (e.g., the largest shaft or the smallest hole). iso 286 pdf
A search for "ISO 286 PDF" usually stems from a practical need: an engineer or student needs to look up a specific tolerance value for a specific diameter.