Product Manual

The whole structure of the motor must be rigid to reduce vibration and
noise. The stator insulation and coil winding must be done in a precise
manner to avoid damaging the wire insulation or ground insulation. And
mountings musts meet exacting dimensions. This is especially true for
motors with NEMA C face mountings, which are used for direct coupling
to speed reducers, pumps and other devices.
The electric motor is, of course, the very heart of any machine it
drives. If the motor does not run, the machine or device will not
function. The importance and scope of the electric motor in modern
life is attested to by the fact that electric motors, numbering countless
millions in total, convert more energy than do all our passenger automo-
biles. Electric motors are much more efficient in energy conversion than
automobiles, but they are such a large factor in the total energy picture
that renewed interest is being shown in motor performance. Today’s
industrial motors have energy conversion efficiency exceeding 96% in
larger horsepowers.
This efficiency, combined with unsurpassed durability and reliability,
will continue to make electric motors the “prime movers” of choice for
decades to come.
-7-