12.5 Center distance

The centre distance C{a} is the theoretical distance between the origins of the pinion and gear on assembly. The plus button can be used to define an upper and lower tolerance for the centre distance. The sizing button PIC can be used to calculate an appropriate center distance based a given sum for the profile shift coefficients.

Tolerances for the centre distance can be defined using the PIC next to the input field. Normally the tolerances are defined symmetrically so one is positive and the other is negative.


Figure 12.3: AGMA 2001/2101 - Center distance