torque mounts (was Re: Helical Couplings)

Torque mounts are definitely underutilized in industry. So many engineers
see the nice little 4 bolt flange and assume they will rigid bolt it in
place, and then engineer all sorts of Rube Goldberg things to get the
alignment right.

Fact of the matter is that all most motors are good for is torque and that
the best way to mount them is often a torque mount. This works really well
if you happen to have a double shaft motor. Just use a solid coupling to
the shaft you need to drive, then mount a bearing on the back side of the
motor. The motor itself then floats between two bearings. All you need do
is to bolt an arm to the motor housing and fix it with a single point
contact. In effect, all you are doing is delivering a solid base for the
field winding to work from. The rotor is fixed to the shaft. Alignment
and self aligning couplings are never a problem with a torque mount.

G. Jackson