For starters, the 7518 has a 4" D body. The 690 and 890 are 3.5".
I just measured them all, and they'll all fit with a 1/2" clearance but if you need to mount them at a different angle, they all may need up to 1". The 892 maybe a little less.
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Gerry
Mach3 2010 Screenset
http://home.comcast.net/~cncwoodworker/2010.html
(Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management) |