12
Mounting
The motors are mounted either on the motor feet or on the flange at the
installation site. All motors with shaft heights of up to 355 mm can be
mounted either horizontally or vertically thanks to their bearing layout. This
applies also for motors to be mounted with the feet on roofs and side walls.
Motors with reinforced bearings are to be operated at a minimum load to
ensure the smooth operating of the anti-friction bearings (
Î Table 3).
Table 3: Minimum load on the shaft collar for motors with reinforced bearing
Shaft
height
Minimum
load
Shaft
height
Minimum
load
Shaft
height
Minimum
load
112
1100N 200 3400N 315 8000N
132
1600N 225 3800N 355 2000N
160
1900N 250 4900N 400 2000N
180
2700N 280 5500N 450 2300N
The bearings may be damaged if the minimum load is exceeded. Trial runs
with no-load should last only a few minutes.
You can find the max. permissible loads in our catalogue "Explosion-
Protected High and Low Voltage AC Motors" or contact the manufacturer.
Align the motors according to the requirements of the coupling or pulley
manufacturer. The feet are to be positioned evenly and, if necessary, lined.
Please note!
Make sure that the fastening screws are duly dimensioned.
Data on the foundation loading generated by the motor can be requested
from the manufacturer by specifying the motor number. The fastening
screws must be duly tightened according to their layout and secured to
prevent loosening during operation and hence the damaging of the drive.
(
Î Table 4, page 17).
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