Fit
A fit defines dimensional relationships between mating parts such as a shaft and hole.
Other learning contexts (1)
In context
The required relationship depends on whether clearance is needed for movement or secure fixation is intended. Consider the permitted dimension ranges of both parts to anticipate assembly results.
Example
Making a rotating shaft excessively tight may hinder movement. Conversely, excessive clearance at a fixed location may compromise positioning.
Key distinction
Good assembly has a relationship suited to its purpose, rather than simply having no clearance.
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