Care After Installation - ABB AMA Series Manual

3.7 Care after installation

***Following note for bearing type: Rolling bearing
***Following note for bearing type: Sleeve bearing
3BFP 000 050 R0101 REV E
Table 3-1. Recommended permissible misalignments
Coupling Information
Coupling Coupling Type
Diameter
100 – 250 mm Rigid Flange
(4 – 10")
Gear
Flexible
250 – 500 mm Rigid Flange
(10 – 20")
Gear
Flexible
If the machine will not be in operation for a longer period after it has been installed, the same
measures as mentioned above in Chapter 2.6.1 Short term storage (less than 2 months) should
be applied. Remember to rotate the shaft 10 revolutions at least every 3 months, and that self-
lubricated bearings must be filled with oil. If external vibration is present, the shaft coupling
should be opened and suitable rubber blocks should be placed under the feet of the machine.
NOTE: External vibration will damage the bearing rolling surfaces and therefore shorter the
bearing lifetime.
NOTE: External vibration will damage the bearing sliding surfaces and therefore shorter the
bearing lifetime.
Manual for Induction Motors and Generators
Permissible Misalignment
Parallel Angular
∆ r ∆ b
0.02 mm 0.01 mm
(0.8 mil) (0.4 mil)
0.05 mm 0.03 mm
(2 mil) (1 mil)
0.10 mm 0.05 mm
(4 mil) (2 mil)
0.02 mm 0.02 mm
(0.8 mil) (0.8 mil)
0.05 mm 0.05 mm
(2 mil) (2 mil)
0.10 mm 0.10 mm
(4 mil) (4 mil)
Installation and Alignment - 35
Axial
∆ a
0.02 mm
(0.8 mil)
0.05 mm
(2 mil)
0.10 mm
(4 mil)
0.02 mm
(0.8 mil)
0.05 mm
(2 mil)
0.10 mm
(4 mil)