Sabrina,
The Length differences in your turnbuckle question is called the lead and will
depend on the thread type & pitch. If you had a Machinery Hand book you could
look up the thread pitch & lead for any thread type.
For example:
A 1/4 x 24 thread has the pitch of about 0.04167"
1" divided by 24 = 0.041666667" (rounded to 0.04167")
so for every revolution the mating pieces would move one pitch (lead).
On a turn buckle this is doubled so the lead would be 0.08334"
There are 3 classes of threads and the tolerances are different for each class.
so there will be some variance depending on the manufacturer and class.
Lead = Pitch x Starts (starts is the number of threads (single, double,etc.))
So imagine we had a turnbuckle that was 5/16 x 32 and was a double thread?
what is the lead now? :)
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Brady McCormick
Poulsbo, WA
www.magnificentmachine.com
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=217030#217030
