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Assembly
5.3 Installing the machine
Table 5-2
Max. speed n
n
max
1500 rpm < n
Note
Machine expansion
When performing alignment, make allowance for the thermal expansion of the machine due
to rising temperature.
See also
Tightening torques for screw and bolt connections (Page 179)
5.3.4
Aligning the machine to the driven machine and attaching it to it (IM B5)
The standard flange is provided with a centering. The choice of fit for the mating flange on the
driven machine is the system manufacturer's or the plant operator's responsibility.
Note
If the machine is not fitted with a standard flange, align the machine to suit the driven
machine.
Procedure
The machine axis must be horizontal when it is lifted and the flange must be parallel to the
mating flange, so as to avoid seizing and stressing. Otherwise damage to the centering will
result.
1. Grease the centering flange with assembly paste to make the process easier.
2. Screw three studs into tapped holes spaced about 120° apart around the driven machine
3. Position the machine so that its axis is aligned with that of the driven machine, but not yet
4. If necessary, rotate the machine into the right position so that the clearance holes in the
5. Move the machine fully up against the mating flange so that it is fully in contact.
6. Fix the machine using the flange fixing bolts, finishing by replacing the studs.
74
Permissible deviations for aligning the machine with flexible coupling
max
≤ 1500 rpm
≤ 3600 rpm
max
flange. The studs act as positioning aids.
quite touching. Advance the machine slowly towards the driven machine; advancing too
quickly risks damaging the centering.
flange are central to the tapped holes.
Max. parallel offset x
x
= 0.08 mm
max
x
= 0.05 mm
max
Max. angular offset y
y
= 0.08 mm / 100 mm ∅ D
max
y
= 0.05 mm / 100 mm ∅ D
max
SIMOTICS FD 1MH1
Operating Instructions 08/2017
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