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정의
측정 또는 제조 치수에서 허용되는 변동 범위로, 상한과 하한의 차이로 정의된다.
설명
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.
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