公差
Embed This Widget
Add the script tag and a data attribute to embed this widget.
Embed via iframe for maximum compatibility.
<iframe src="https://unitfyi.com/iframe/glossary/tolerance-def/" width="420" height="400" frameborder="0" style="border:0;border-radius:10px;max-width:100%" loading="lazy"></iframe>Paste this URL in WordPress, Medium, or any oEmbed-compatible platform.
https://unitfyi.com/glossary/tolerance-def/Add a dynamic SVG badge to your README or docs.
[](https://unitfyi.com/glossary/tolerance-def/)Use the native HTML custom element.
定义
测量或制造尺寸允许的变动范围，定义为上下限之差。
解释
An ISO h6 shaft with a 50 mm nominal diameter has a tolerance of 0–16 μm, meaning any shaft between 49.984 mm and 50.000 mm is acceptable. Tighter tolerances cost more to manufacture: machining to ±0.1 mm is routine, while ±0.001 mm requires precision grinding. Tolerances ensure interchangeable parts fit without individual fitting.
RELATED ARTICLES
From milligrams to metric tons, this guide covers every major weight and mass unit with exact conversion factors, real-world examples, and a clear explanation of why weight and mass are not the same thing.
Complete Guide to Length Units: From Nanometers to Light-YearsA comprehensive reference covering every major length unit—metric, imperial, nautical, and astronomical—with exact conversion factors and real-world scale examples.