On 2011-03-11, Larry Jaques wrote:
On Thu, 10 Mar 2011 14:48:41 -0600, Ignoramus15362
wrote:

On 2011-03-10, Larry Jaques wrote:
On Thu, 10 Mar 2011 09:45:38 -0600, Ignoramus15362
wrote:

On 2011-03-10, Larry Jaques wrote:

The only thing I'd worry about is whether or not the motors have the
same thrust bearings top and bottom. You might be able to reverse
their mounting position and flip the pulley over, though. I guess it'd
depend on the shaft length.


Motors usually do not have thrust bearings.

Bearings might hold the armature solid. Otherwise, some sort of
thrust bushings have to be there to keep it from moving.


Larry, take apart and electric motor and see for yourself.

I have. Several: sewing machines, vacuums, washing machines, old 1/3
to 3/4hp AC motors, etc. Only the ones with pressed-on bearings didn't
have some kind of thrust washer and/or oil-impregnated felt.
I haven't been inside any multi-horse motors, though.



And, come to think of it, I only took apart horizontal mount motors.

i