"Butter" wrote in message
...
Our "engineer" bought a bearing and bar of precision ground rod. It
easily slipped through the bearing and since it had screws to lock it
down all was find untill. Untill i read the literature that came with
the bearing and it said to have a "Press Fit" if using their bearing
for "heavey loads" I just guessed that the 6,000 + lbs we were going
to support qualified. After doing some calculations our "engineer"
said i was right.
So he ordered some bar stock that has to be machined.
I told him to look it up in Machinerys Handbook for the tolerance
but he got it all wrong. When i tried to find it in there i found the
newer additions were a little confusing. So all i want to know is if
our bearing is 1.5000 what should the shaft be turned down to. The
width of bearing is about two inches.
Thanks
Rosco

I had a high-speed shaper with 1.5" shaft and 2 matched Barden bearings on
one end. We made the shaft about .00025" - .0005" big (depending on the
temp) We heated the bearings on a lightbulb and seated them with a length
of tube and a hammer. I have since sold the shaper.