To help you quickly reference the tolerance values according to ISO 2768, we have prepared an exclusive PDF guide. This guide provides a concise overview of the standard, including:
Defines three classes for features like flatness and symmetry: Part 1: Linear & Angular Dimensions (ISO 2768-1) iso 2768 general tolerances pdf exclusive
ISO 2768 is a set of international standards that specifies general tolerances for linear and angular dimensions and for geometrical tolerances on parts made by machining, stamping, casting, forging, etc., when no individual tolerance is indicated on the drawing. It prevents over-specifying tolerances for non-critical features, simplifies drawings, and reduces manufacturing cost while maintaining fit and function. To help you quickly reference the tolerance values
| Tolerance Class | Tolerance for nominal angle lengths (up to 10mm) | >10 up to 50mm | >50 up to 120mm | >120 up to 400mm | | :--- | :--- | :--- | :--- | :--- | | f (Fine) | ±1° | ±0°30' | ±0°20' | ±0°10' | | m (Medium) | ±1° | ±0°30' | ±0°20' | ±0°10' | | c (Coarse) | ±1°30' | ±1° | ±0°30' | ±0°15' | | v (Very Coarse) | ±3° | ±2° | ±1° | ±0°30' | | Tolerance Class | Tolerance for nominal angle
The primary goal of ISO 2768 is to streamline the communication between design and production. Without general tolerances, every single line on a drawing would require a manual tolerance entry, leading to cluttered, unreadable documents.
In engineering and manufacturing, tolerances play a crucial role in ensuring the quality and interchangeability of parts. One of the most widely used standards for general tolerances is ISO 2768. This standard provides a set of general tolerances for linear and angular dimensions, which can be applied to various types of parts and assemblies. In this write-up, we will explore the details of ISO 2768 and provide an exclusive PDF guide for reference.