Article
Article
Location fit
Article By:
Black, Paul H. Department of Mechanical Engineering, Ohio University, Athens, Ohio.
Last reviewed:January 2020
DOI:https://doi.org/10.1036/1097-8542.388600
Mechanical sizes of mating parts such that, when assembled, they are accurately positioned in relation to each other. Locational fits are intended only to determine the orientation of the parts. For normally stationary parts that require ease of assembly or disassembly, for parts that fit snugly, and for parts that move yet fit closely as in spigots, slight clearance is provided between parts. Where accuracy of location is important, transition fits are used. In these fits the holes and shafts are normally nearly the same diameter. For greater accuracy of location, the shafts are made slightly larger than the holes; such fits are termed location interference fits. See also: Allowance
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