On 05/03/2021 17:40, Mark wrote:
"rick" wrote in message
...
I have an air handling unit down due to fan failure .... its a DC variable
speed blower, and the rotor is a tangential set of blades fitted around the
motor .... on one end there is a ball bearing race that is held in the form
of rubber isolating mount/bush.
Presumably to provide noise isolation and some self-centering.

The bearing has seized .. OK I can replace that, but the rubber bush it
mounts in is very soft ... so assume damaged.

https://flic.kr/p/2kHeKth

Yes I Did look at the photo!
If the new bearing is not a good fit in that rubber housing I would try some
Silicone Moulding Rubber


That was my thought too. Perhaps a film of grease on the moving parts so
they are still free to turn after potting in rubber.