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Originally Posted by geo
What difference do 14.5 P.A and 20 P.A make?
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14.5 PA runs smoother and quieter, but has more backlash and handles less of a load than a 20 PA. 14.5 PA teeth appear taller and skinnier than 20 PA.
20 PA will be noisier and not as smooth, but will have less backlash and can handle slightly more load. If anyone can back me up on these statements, I'd appreciate it because I wanna make sure I didn't post any wrong information. I know 222 switched from 20PA to 14.5PA and we haven't had any trouble with our gears and they do seem to run smoother and quieter.
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