4. When positioning the machine, ensure that a uniform axial gap (y→0) is maintained around
the coupling.
5. Fix the machine to the foundation. The choice of fixing elements depends on the foundation
and is the plant operator's responsibility.
① Plates placed under the motor for alignment
② Laser alignment
Image 5-3 Schematic diagram: Aligning the machine to the driven machine
Table 5-2 Permissible deviations for aligning the machine with flexible coupling
Max. speed n
max
Max. parallel offset x Max. angular offset y
n
max
≤ 1500 rpm x
max
= 0.08 mm y
max
= 0.08 mm / 100 mm ∅ D
1500 rpm <
n
max
≤ 3600 rpm x
max
= 0.05 mm y
max
= 0.05 mm / 100 mm ∅ D
Note
Machine expansion
When performing alignment, make allowance for the thermal expansion of the machine due
to rising temperature.
Assembly
5.3 Installing the machine
SIMOTICS TN Series N-compact 1LA8
Operating Instructions 05/2016 55
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