Quote Originally Posted by Jonathan View Post
Looking at the specs Oldham couplings tolerate a surprisingly small amount of misalignment, not that that's a reason not to use them since you're doing something wrong if you can't get the shafts close enough...
Get your head out of theory spec sheets and into real life.

http://www.youtube.com/watch?v=utEKKox2WHA

True you should get them bang on, not close enough, 10 thou out is as bad as 100 thou out.