Posted by Shahzad on August 11, 2008 at 16:51:42:
Hello Everyone,
I have some job of plantary gears. I did not figure out to calculate the inside diameter of annual.
The plantary have 71 teeth, 6 module , 20°PA, The drawing shows inside diameter of annual 71x6= 426mm
While another plantary have 89 teeth with 4 module, Inside diameter according to 1st annual should be 89x4=356mm, but it is observed 353.5mm . Why there is difference ?