I used to align coupling with dial indicators, then in later years used a roto-lign lase alignment tool, with a computer to do the thinking for you. We always tried to align to .002 or better. Alignment is a complex procedure that I can't explain in a paragraph or 2. Like someone else said you need 2 flexible coupling on a shaft like that, and they need to have pilots to keep them centered. I think double roller chain couplings have been used for pumps like that. It's not like they run high speed or 24/7 like the equipment I worked on.
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Today's Featured Article - The Day Mom Drove the 8N - by Brian Browning. My Dad was wanting to put in a garden but couldn't operate the 8N and handle the old horse drawn plow he had found and rigged up to use with the tractor. Well, he decided to go get Mom out of the house and have her drive the tractor while he walked behind the plow. You got to understand that while my Mom is a hard worker who will always help whenever she can... she had never operated farm machinery before that day. Dad got her out there, explained how the clutch was the same as in our o
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