FLENDER RUPER RBS, Assembly And Operating Instructions Manual, Page: 33 / 78

Assembly
5.3 Aligning the coupling
M3602-01en Edition 09/2022 33
3. Clean, degrease, de-oil and dry the hub bores and shaft ends.
4. Clean and dry the oil channels and the oil circulation grooves.
5. Protect adjacent components against damage and heating to temperatures above 80 °C.
6. Heat up the coupling parts 1 (1) and/or 3 (3) to the temperature specified in the dimen-
sion drawing.
Make sure that no dirt or contaminants can soil the bores again during the heating pro-
cess.
7. Mount the coupling parts 1 (1) and/or 3 (3) quickly on the shaft according to the instruc-
tions in the dimension drawing.
8. Secure the coupling parts to stop them from moving until they have cooled down.
9. Allow the coupling parts to cool down to the ambient temperature.
10.Use an end plate to secure the coupling parts that have a non-self-locking, tapered pres-
surised oil interference fit.
11.In order to protect the oil channels of the coupling parts 1 (1) and/or 3 (3) against corro-
sion, fill them with a suitable pressurised oil and seal the oil channels with the screw
plugs (101) and/or (301).
12.Assemble the buffers (5). For further information, refer to section Replacing wearing
parts (Page 44).
5.3 Aligning the coupling
5.3 Aligning the coupling
5.3.1 Purpose of alignment
5.3 Aligning the coupling
The shafts that are joined by the coupling are never on an ideal precise axis but have a cer-
tain amount of misalignment.
Misalignment in the coupling leads to restoring forces that can stress adjacent machine parts
(e.g. the bearings) to an unacceptable extent.
The misalignment values in operation result from the following:
• Misalignment due to assembly
Incorrect position due to a lack of precision when aligning
• Misalignment due to operation
Example: Load-related deformation, thermal expansion
You can minimise misalignment by aligning after assembly. A lower misalignment in the
coupling has the following advantages:
• Reduced wear of the elastomer components
• Reduced restoring forces
• Misalignment reserves for operation of the coupling
You can find the maximum permitted shaft misalignment values during operation in section
Shaft misalignment values during operation (Page 71).