View Single Post
  #11   Report Post  
Posted to rec.crafts.metalworking
Glenn
 
Posts: n/a
Default Micro switch source


"Harold and Susan Vordos" wrote in message
...

"Mark Rand" wrote in message
...
snip-----


If you need a UK pair of hands/phone/post office, drop me an email.


Mark Rand
RTFM


Thanks, Mark. Very kind of you to offer.

I'm slowly discovering the problem. The switch I have is old----from a
machine made in '67. I had trouble finding a replacement for an earlier
failure, which was many years ago. I now understand why. In spite of
the
fact that the number is still available, the configuration is no longer
the
same, although the electrical specs appear to be. Interestingly, the old
number has screw connections, not soldered. The number now has soldered
connections, with the -2 number being screw type.

The old switch has a bottom without any humps, with two of the screw
connections on one end, opposite the plunger, and one on the end with the
plunger. Height of the switch body, from the bottom to the circular pad
that surrounds the plunger, is 13/16", with and additional height of 1/4"
from that pad to the top of the plunger. The drawing for the current
model
clearly shows the height that would be 13/16" on the one in my possession
to
be .93", for which there is no room. Here's a link that shows the
dimensions.
http://catalog.sensing.honeywell.com...p?PN=BZ-2RD-A2

Ned has provided a link that shows a picture of the style that I need.
While I'm not convinced it would be the old configuration, I'll certainly
give them a go on Tuesday.

To all:

My sincere thanks for your efforts. It's nice to know that when you've
exhausted your resources that others can come to your rescue. I have
no
doubt I'll be able to resolve my problem, assuming I can no longer buy the
old configuration. If I must, I'll build a new protective plastic housing
that now restricts the installation of the new design.

Harold


Harold,
I have some NOS switches similar to what you are looking for. One is a
Micro Switch brand BZ-2R104 The others are arrow heart and unimax and have
the newer screw lugs and hum as opposed to the small screws and tabs with a
flat bottom.
They look like the L figure in this link
http://www.mouser.com/catalog/626/1176.pdf only with flat bottom and 2
screws on one end one on the other. One has the roller arm as in M but it
also has the hump on the screw side. I probably have others around just
like the ones you need but they are deeper in the boxes They were
benchstock for equipment that was replaced 20 years ago. If you need them
or think they may be made to work I would be happy to send em to ya.
Glenn
Medford, OR