Date: Mon, 2 May 2011 17:36:58 -0700
From: "Jim W7RY" <w7ry@inbox.com>
Subject: Re: [Amps] Jennings UCS puller interchangeability ?
The end of the shaft sizes are 1/4" and 3/8" . The cap itself has 1/4-28
threads (1/4" 28 threads per inch). Most of the "nose cones" are the same
size.
Sometimes the 3/8" shaft end is just an adapter installed onto/over the top
the 1/4" end shaft.
#### I have several of the jenning's vac caps... and some are 1/4"- 3/8"- and
also 1/2" shafts.
[ this is the end portion that have to mate to]. Since my shafts through the
front panel turns counter's
are all 1/4" SS.... and adaptor has to be used.... like 1/4- 1/4 or 3/8-
1/4 or 1/2- 1/4.
I was given a few really nice adaptors... and have never seen em since. These
were like a small bellows affair
in the middle of the adaptor..... sorta accordian type....and were cylindrical
in shape. The ones given to me took
a 1/2" shaft [with set screws] on one end... and took a 1/4' shaft [ with set
screws] on the other end. These
adaptor's were the best yet..since they would easily allow for a small amount
of shaft misalignment. If anybody
knows a source for these bellows types, let me know, as I could use at least 2
more of them.
## I also have a few of the solid brass adaptors, in 3/8-1/4 variety..and
also 1/2- 1/4. Those will work as well..
BUT, will not tolerate any shaft misalignment at all. Some of the 5-20 kv
shaft isolators [ 3/8-1/4 and 1/4-1/4]
will allow for a tiny bit of shaft misalignment..and also electrically isolate
the 2 x shafts.
## In the odd place where an electrical shaft isolator is required, but the
standard shaft isolator won't fit,due to space
constraints, then a solid 1/4" diam fiberglass rod can be used instead.
Later... Jim VE7RF
Hope this helps.
73
Jim W7RY
_______________________________________________
Amps mailing list
Amps@contesting.com
http://lists.contesting.com/mailman/listinfo/amps
|