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How to determine the correct center distance for spur gears

Publication date: 
September 2012
Author: 
Jasper Fisher, EASA Past Chairman (1999-2000)

One of the few dimensions on a mechanical drawing which is not directly determined by the designer, but is indirectly determined by the choice of gear pitch diameters of the driver and driven spur gears, is the gear center distance (C). This measurement is the center-to-center separation of the driver and driven gear set.

Topic(s): 
Design/theory/application
Gears/gearboxes