A handbook on the teeth of gears, their curves, properties, and practical construction (1887)
Grant, George B. (George Barnard), 1849-1917 · [Boston] · leaf 29
INTERNAL GEARS. The internal gear, sometimes called the ** annular gear, is drawn by therules for spur gears, the teeth of a spur gear being the spaces between theteeth of an internal gear of the same pitch diameter, with the backlash andclearance reversed in position. Involute teeth should end at…
Gearing
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