Iso 286 Pdf Link

Let’s assume you have printed out an ISO 286 pdf (or saved this page). Here is how to apply it.

Scenario: You need a sliding fit for a 40 mm diameter shaft in a gearbox.

Yes, many engineers manually enter the formulas from the ISO 286 PDF into Excel. However, you cannot legally redistribute that spreadsheet without permission from ISO.

ISO 286 complements:

ISO 286 is the definitive international standard for linear size tolerances , commonly known as the ISO system of limits and fits

. It provides a standardized alphanumeric code system (e.g.,

) to ensure that mating parts, such as shafts and holes, function together correctly regardless of where they are manufactured. Structure of the Standard iso 286 pdf

The standard is divided into two primary parts, often found as PDF downloads from official bodies like the ANSI Webstore ISO 286-1: Basis of tolerances, deviations, and fits

Establishes the fundamental terminology, symbols, and mathematical bases for the code system. ISO 286-2: Tables of standard tolerance classes

Contains the calculated limit deviation values for various nominal sizes of holes and shafts. Core Concepts Let’s assume you have printed out an ISO

When searching for "ISO 286 PDF," you are likely looking for the international standard defining the ISO system of limits and fits. This standard is critical for mechanical engineers, machinists, and designers to ensure parts fit together correctly (e.g., a shaft inside a hole).

Because ISO standards are copyrighted documents, downloading an official PDF usually requires purchasing it from the ISO organization or national standards bodies (like ANSI, DIN, or BSI).

However, you don't always need to buy the full document to get the data you need. Below is a helpful guide to what ISO 286 contains, key terminology, and free alternative resources. Find the Shaft (40 mm g6):