Features & Benefits of Installed RexMotorCover™

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RexMotorCoverTM offers a perfect solution for protecting motors

and helping to get the most out of the motor life. Creating a

virtual cooling tunnel while also limiting debris, water, and

chemicals from entering in, on, and around the motor promoting

ventilation. Even clean new motors in an ideal industrial

environment will experience heat reductions when

RexMotorCovers™ are used. Listed below are three motor cover

features, each with a short description on how they will benefit

motor life.

RexMotorCover™ creates a "virtual cooling tunnel" effect, which

forces air currents onto the cooling fins. Because of the close

proximity between the motor and the cover, all air created by the

fan flows the full length of the motor and cooling fins. One of the

world's leading producers of electric motors concluded "only about

20 percent of the airflow created by fans of conventional motors

stays in the channels between the fins." It is quite apparent that

with nearly 100 percent of the air flowing across the motor, heat is

dissipated with better efficiency and the motor experiences a

lower operating temperature. This creates a longer bearing and

winding life. According to the electric motor industry's general rule

of thumb "Every 10° C reduction in temperature doubles life

expectancy." In research of another leading motor manufacturer

on RexMotorCovers™ , they determined the covers to lower totally

enclosed fan cooled motor temperatures by about 20° F and in

dirty environments 40° F.

RexMotorCovers™ are perfectly shaped to deter debris from

entering in, on, or around electric motors. The motor cover is

cylindrical in shape to wrap around the motor. Because of its

cylindrical shape, debris normally slides off the cover preventing

debris build-up and insulation effect. The horizontal cover also 

extends past the fan end of the motor to help prevent

debris from entering the motor at an angle. RexMotorCovers™ will

in turn prohibit debris from covering crucial ventilation

components possibly even insulating the motor.

RexMotorCovers™ greatly reduce water and chemical exposure as

well. This reduction is vital to a motor's life when insulation

degradation is considered. Without proper insulation capabilities,

heat rises, and the life of the motor is shortened. Another large

concern with water and chemical exposure is bearing

contamination. Many times, chemicals break down motor bearing

lubrication and although it may not be apparent, it is estimated

that about 20% of bearing failures are due to bearing

contamination. RexMotorCovers™ have a high chemical resistance

to most harsh chemicals and are perfectly shaped to limit this

chemical exposure.