Rubbery Bits Gone Gooey

From: Allison J Parent <allisonp_at_world.std.com>
Date: Sun Nov 23 19:01:02 1997

<instead of the vinyl, would a small section of heat-shrink tubing work? Ni
<it a little longer than the thickness of said ferrule, then hit it with

I presume over the gummy roller. The problem is the ferrule for the tu58
is 0.435 od, the roller is 0.625 od. The gummey material does not hold
shape in the advanced cases of rot. The tygon tubing has a 0.385 ID and
when stretched over the ferrule has a od of 0.610 after grinding. This is
adaquate as the tape speed is servo controlled via read back data.

Having worked with machines used to produce pharmaceuticals I have a
better than average appreciation for various elastic materials. There
are many of them to choose from and the urethanes or neopyene are a good
choices but Tygon(aka Vinyl) thick wall tubing is a easy one to obtain and
use and proven satisfactory. The later ease of availability and use are
key in the selection.

Allison


Allison
Received on Sun Nov 23 1997 - 19:01:02 GMT