SERIE R e RM
Asynchronous
ventilated motors,
with short-circuit cage rotor, manufactured
in insulation class F and with IP54 protection degree.


R-RM SERIES MOTORS
STRUCTURAL CHARACTERISTICS
Asynchronous ventilated motors, with short-circuit cage rotor, manufactured
in insulation class F and with IP54 protection degree.
Dimensions and powers in accordance with IEC 72.1
standards and Low Voltage Directive 73/23–ECC IMD 89/ 392 EEC EMC-89/336 EEC.
Shields and flanges are made up of die-cast aluminium.
The bearing seats are hardened by reeling or die-cast steel inserts.
The aluminium frames are externally finned to increase the heat loss surface.
The plate pack is placed inside the frame with hot motor to avoid rotations.
The shaft is made up of steel C40 for all the sizes, the prime bearings are screened and lubricated for life.
The fans are made up of elastic plastic material in order to avoid the breaking of the vanes.
The fan covers are made up of painted or zinc plated sheet 
(upon request, nylon fan covers are available for some sizes).
The motor is supplied with black painted or zinc plated fan cap, 
while the other external parts of aluminium are sandblasted.
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