Assemble transmission elements
edge of the foot specified in the particular motor
dimension drawing. Compare this dimension with
the connection dimension on the machine side.
Remark: The mounting holes and clearances
correspond to the general tolerance according
to DIN ISO 2768-1 (tolerance class m). Before
attaching the motor to the machine, it must be
aligned so that the center line of the motor shaft
is aligned with the center line of the connecting
shaft.
1. Dismount the lower lateral air baffles to
have free access to the mounting holes.
Only for motors with forced ventilation.
2. Align the motor so that the center line of
the motor shaft is aligned with the center
line of the machine connecting shaft. To
align the motor, use sheet steel strips as a
base.
3. Connect the motor firmly to the
machine (for tightening torques, see
⮫ Chapter 5.2.2 “Mechanical interfaces”
on page 17).
4. Reattach the air baffles to the motor.
In contrast to flange assembly, radial forces may
only be effective in a direction perpendicular to
the mounting surface (± 15°) if foot assembly
is selected. The transmission of forces in other
effective directions is not allowed.
Fig. 9: Force direction at foot mounting
Please note the following in case of foot
mounting:
− Forces which are transmitted by a gear and
have an effect on the motor feet are not
allowed.
Forces taking effect via the gear shaft must
be supported against the gear.
−
Incorrect installation situations give rise to
forces which may cause short-term damage
to the motors.
If necessary, consider "flange assembly" as an
alternative.
7.3 Assemble transmission
elements
NOTICE
Motor damage due to strikes onto the motor shaft
Do not strike the shaft end and do not exceed the
allowed axial and radial forces of the motor.
Fit and pull off the transmission elements such
as pulleys and couplings only with suitable equip-
ment; heat them, if necessary.
Assembly
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