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Reply to "instrumenting motors and fan bearings"

We use 1/2" thick x 1" diameter metal pads with the hole drilled and tapped on one side. The diameter matches our accelerometers. The mounting surface has to be flat, clean, etc. I use a hand file or an air grinder with a 1-1/2" disk to grind a place flat to mount the pad.
I use Loctite 330 adhesive to glue the pad on.
One part is adhesive the other is a spray activator. Put adhesive on one surface, spray activator on the other surface, hold the pad for about 1 minute. Attach the accelerometer to the pad. I have been using this system for several years. If a pad/accelerometer gets knocked of, clean it up and glue it back on. No broken screws or housings with pieces broken off. Spare equipment can have the pads mounted ahead of time, when the spare is installed, the pads are there ready to go.

I'm sure there are many other ways to accomplish this. Everyone has there own preferencies. This is mine.

Goodluck
REJ
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