SEW-Eurodrive M1 N Series, Руководство по сборке и эксплуатации

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5
Installation/assembly
Mounting tolerances
Assembly and Operating Instructions – M1..N Series Single-Stage Helical Gear Units
50
5.9 Mounting tolerances
Adjust the following misalignments according to the coupling manufacturer's specifica-
tions when mounting couplings.
a) Maximum and minimum clearance
b) Axial misalignment
c) Angular misalignment
a)
b) c)
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The following table shows various methods for measuring the differing tolerances.
Measuring
instruments Angular offset Axis offset
Feeler gauge
a1
a2
a
D
a
b
f2
f1
This method only achieves an accurate result
when the deviation of the coupling faces is
eliminated by turning both coupling halves by
180° and then calculating the mean value
from the difference (a1 – a2). The following illustration shows the measure-
ment of axial offset using a straight-edge.
Permissible values for axial offset are usually
so small that the best measurement results
can be achieved with a micrometer dial. If
you rotate one coupling half together with the
micrometer dial and divide the deviation by
two, the deviation displayed on the dial indic-
ator indicates the offset (dimension "b") that
includes the axial offset of the other coupling
half.
29203856/EN – 03/2020