Re: [CAD_CAM_EDM_DRO] extrusion of Linear Bearing pillow block question...

At 10:20 AM 2/17/02 -0700, Smoke wrote:

>I would not use a press fit! I'd use the bore tolerances recommended by
>Thompson in their catalogs. If necessary, I'd buy a reamer sized to these

Absolutely right, Smoke! The recommended bore for the Thompson 3/8" i.d.
Super Ball Bushing (the size I recently used) is .6255/.6250" These things
are not very tolerant to sqeezing or misalignment. And that goes for
torquing *after* they're mounted. The best thing, in the
slightly-oversized-hole-with-Loctite case, would be to assemble the whole
carriage/knee/whatever assembly and then Loctite all the bearings at once,
so they at least have half a chance of seeking a common alignment to the
shafts they're to run on.

Best regards,

Randy

Randy Gordon-Gilmore ,----.___________ ______________ _________________
ProtoTrains // = = === == || == == == = || == == == = == =|
Rio Vista, CA, USA /-O==O------------o==o------------o==o-----------o==o-'
zephyrus@... http://www.rickadee.net/~zephyrus