page_title: List of gear nomenclature
section_title: Base diameter
hierarchical_section_title: List of gear nomenclature / Base diameter
caption_attribution_description: English: Base diameter
context_page_description: This page lists the standard US nomenclature used in the description of mechanical gear construction and function, together with definitions of the terms. The terminology was established by the American Gear Manufacturers Association, under accreditation from the American National Standards Institute.
context_section_description: The base diameter of an involute gear is the diameter of the base circle.
caption: Base diameter
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