Holding brake (option)
Installation
5  Mechanical installation
5.3.1  Installation 
Im portant notes
•  The m ounting surface must be dimensioned for the design, w eig ht and torque of 
the motor.
•  The fo ot and flange faces m ust rest flat on the m ounting surface.
-  Incorrect m otor alignm ent reduces the service life of the roller bearings and 
transm ission elements.
Im pacts on shafts can cause bearing damage.
•  Do not exceed the permissible range o f am bient operating tem perature (Ш  19).
•  Fasten the m otor securely.
•  Ensure th at the ventilation is not impeded. The exhaust air, also the exhaust air of 
other machines next to the drive system , must not be taken  in im mediately.
•  During operation, surfaces are hot,  up to 140 °C!  Ensure that guard  preventing 
accidental contact is in  place!
Ensure  an  even  surface,  solid  foot/flange  m ounting  and  exact  alignm ent  if a  direct 
clutch is connected. Avoid resonances w ith the rotational frequency and double mains 
frequency w hich  m ay be caused  by the assembly.
Use appropriate means to m ount or remove transm ission elem ents (heating) and cover 
belt pulleys and clutches w ith  a touch guard. Avoid im perm issible belt tensions.
@   Stop!
Ensure a correct belt tension!
The  m achines  are  halfkey  balanced.  The  clutch  m ust  be  halfkey  balanced,  too.  The 
visible ju ttin g out part o f the key must be removed.
Designs w ith shaft end at the  bottom   must be  protected w ith a cover which  prevents 
the ingress of foreign  particles into the fan.
5.4  H olding brake (option) 
Im portant notes
As an option, the motors can be fitted w ith  a brake. The installation of brakes (in or on 
the motor) increases the length of the motor.
1
Note!
The brakes used are not fail-safe because interference factors, which 
cannot be influenced (e.g. oil ingress), can  lead to a  reduction  in torque.
The brakes are used as holding brakes and serve to hold the axes at standstill or in the 
deenergised state.
Em ergency stops at  higher speeds  are  possible,  but  high  switching  energy increases 
wear on the friction surfaces and the hub (see w ear o f brakes, page  25 and  26).
22
Lenze • BA 33.0006 • 3.0