Iso fits und tolerances — hole und shaft System

Iso 286 tolerance grades, hole und shaft basis fits, und common fit designations.

fitstolerancesiso

Overview

Engineering reference data for ISO Fits and Tolerances — Hole and Shaft System in drawing tools.

$SF = \frac{\text{drawing size}}{\text{actual size}}$

Ratio of drawing to real dimensions.

$T = \text{max} - \text{min}$

Allowable variation in dimensions.

$AR = \frac{w}{h}$

Width to height ratio.