FLENDER K.SH - Aligning the Coupling; Figure 5-13 Possible Displacements

Assembly
5.4 Couplings
A5850-02en Edition 06/2022 71
Mount gear units with hollow output shaft onto the shafts of the customer's driven machine.
Use a mating flange to mount gear units with flanged output shaft onto the shaft of the cus-
tomer's driven machine.
Further information
Further information about the coupling can be found in the operating instructions for the
coupling in the complete documentation for the gear unit.
5.4.2 Aligning the coupling5.4 Couplings
Introduction
The coupling parts might become misaligned as a result of:
• Failure to accurately align the parts during assembly
• During operation:
– Due to thermal expansion
– Due to shaft deflection
– Due to machine frames that are too soft
Improper use can damage the gear unit or the coupling. Be sure to take the following pre-
cautions:
• Make sure that the maximum permissible displacement values are not exceeded during
operation.
Base frames or substructures that are too soft can cause the coupling parts to become
radially or axially displaced during operation. This displacement is not measurable when
the drive is at a standstill.
– If you are using couplings supplied by Flender, you will find the maximum permissible
misalignment values in the operating instructions for the coupling.
– If you are using couplings supplied by other manufacturers, contact them and ask
them for the maximum permissible displacement values, making sure that you specify
the potential radial loads for your application. Keep the operating instructions for the
coupling together with these operating instructions.
• Angular and radial displacement might occur simultaneously.
Make sure that the total value of both displacements does not exceed the maximum per-
missible angular or radial displacement value.
The diagram below illustrates the potential displacements:
5DGLDOGLVSODFHPHQW
˂.U
$QJXODUGLVSODFHPHQW
˂.Z
$[LDOGLVSODFHPHQW
˂.D
˂.D
˂.Z
˂.U
Figure5-13:Possible displacements