The sprocket size represents the first two digits in the chain designation.
Example: 40A14 is size 40.
The number of teeth represents the last two digits in the chain designation.
Count the number of teeth.
Example: 40A14-14 teeth
Determine the sprocket type:
A-Hub-No extension on either side of sprocket (A)
B-Hub-Extension on one side of sprocket (B)
C-Hub-Extensions on both sides of sprocket (C)
The sprocket can be single,double(D),triple(F),and quadruple(E)strand sprockets,each respectively having single,double,triple,and quadruple sets of teeth.