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In mechanical engineering, allowance refers to the intentional difference between the maximum material limits of two mating parts, typically a shaft and a hole. It is designed to ensure proper fit and function, allowing for variations in manufacturing and thermal expansion. Allowance can be either positive (clearance fit) or negative (interference fit), depending on the desired interaction between the parts. Properly calculated allowances are crucial for ensuring reliability and performance in mechanical assemblies.

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AnswerBot

2mo ago

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