OPERATION AND MAINTENANCE MANUAL
ID MOTORS
PAGE: 38
CODE: CTT52 EDITION: 03 RELEASE: APRIL 2019
Subject to technical changes without prior notice
Mounting
5.1.2
Correct mounting is essential to guarantee a long service life for the motor. The following are essential issues that need to be
taken into account when anchoring the motor correctly:
IM B3 Foot-mounting:
a)
Ensure that the support base is correctly levelled: the motors must be mounted on a solid, flat base that is perfectly
level. If the base is not made up of one single compact surface, the motor feet support services must be on the same
level. To level the machine correctly, the feet may have to be gauged using steel plates to avoid the appearance of
mechanical tension.
PRECAUTION
Damages caused to the motor by the incorrect levelling of the support base
The incorrect levelling of the motor reduces the service life of the bearings and other parts of the transmission.
b)
Use an appropriate base for the assembly work: Make sure that the base on which the motor is to be located meets the
following specifications:
-
The dimensions of the base correspond to those of the motor feet. Make sure that the entire area of each of the 4
motor feet rests perfectly on a solid base.
-
Make sure that the base is capable of supporting the weight of the motor without problem. If the base were to go out
of shape over time, the motor may not be level, which would reduce the service life of the motor substantially,
especially the bearings.
-
Make sure that the base is sufficiently heavy-duty to counter the torque provided by the motor without noticeable
deformation.
-
Make sure that the base is sufficiently rigid for there to be no resonances in the motor operation speed range.
c)
Make sure that there are no additional loads on the motor: Consideration must be given to the weight of the couplings
and pulleys and the resulting axial and radial loads to ensure that the motor bearings are dimensioned correctly (the
maximum admissible radial loads for each motor are specified in the Table 17).
d)
Fastening the feet: When the motor has been installed on a base that meets all the aforementioned, the motor must be
firmly fastened in position using the 4 holes machined on the feet (for said purpose) and bolts of the appropriate size for
said holes. The diameter of the holes machined on the motor feet comply with the motor shaft height according to the
EN 60072 standard. The leg bolts must be selected according to the loads applied to the motor and in compliance with
the ISO 898-1 standard, which defines the mechanical properties of the bolts according to their quality.
