Heavy-duty shrink or press fit for permanent, high-torque assemblies. Finding and Using an ISO 286 PDF
When a hole and a shaft are mated, the combination of their respective tolerance positions creates one of three types of fits. 1. Clearance Fit
– Establishes the code system, basic terminology (e.g., "basic hole" and "basic shaft"), and the principles for defining fits. iso 286 pdf
ISO 286 is an international standard developed by the International Organization for Standardization (ISO) that provides guidelines for geometric tolerancing and limits of size. The standard defines the principles and methods for specifying and verifying the geometric characteristics of parts, such as size, shape, orientation, and location.
: Providing clear, measurable limits for quality control during subtractive manufacturing. Product Longevity Heavy-duty shrink or press fit for permanent, high-torque
Precision sliding fits, gears that slide on splines, machine tool spindles.
To navigate the tables within an ISO 286 document, you must understand its core terminology: 1. Nominal Size (Basic Size) Clearance Fit – Establishes the code system, basic
If you are looking for more general, less precise tolerances for manufacturing, you may also want to reference ISO 2768 .
When a hole and a shaft are assembled, their relationship forms a "fit." ISO 286 categorizes these into three main types: 1. Clearance Fit
While summary tables are available online, the official offers specific advantages:
The ISO 286 standard is divided into two main parts, often downloaded together or separately as PDFs: ISO 286-1: Basis of Tolerances, Deviations, and Fits