Possible Misalignments; Axial Misalignment; Angular Misalignment; Radial Misalignment - Siemens Flender FLUDEX 4600 Series Operating Instructions Manual

6.5

Possible misalignments

S
S
Fig. 10: Possible misalignments
Misalignments of the coupling parts in relation to each other can be caused by inaccurate alignment during
assembly, but also by actual operation of the equipment (expansion due to heat, shaft deflection,
insufficiently rigid machine frames, etc.).
The following maximum permissible misalignments must by no means be exceeded
during operation.
6.5.1

Axial misalignment

Axial misalignment ΔKa (Fig. 10) of the coupling parts relative to one another is possible within the
"permissible deviation" for dimension "S" (see order­related title page).
6.5.2

Angular misalignment

The angular misalignment ΔKw (Fig. 10) can usefully be measured as the difference in the gap dimension
"S" (ΔS = S
max.
6.5.4.
If required, the permissible angular misalignment ΔKw can be calculated as follows:
DKw
perm.
DKw
perm.
6.5.3

Radial misalignment

For the permissible radial misalignment ΔKr
refer to item 6.5.4.
6.5.4 Permissible shaft­misalignment values for radial misalignment ΔKr
dimension ΔS
Values given in mm, rounded off
Table 5: Permissible shaft­misalignment values for radial misalignment ΔKr
difference in gap dimension ΔS
FLUDEX N‐EUPEX
Size
222
297
342
395
450
516
590
The numerical values of the table can be calculated as follows:
DKr + DS
perm.
Angular and radial misalignment may occur simultaneously.
20
max
ΔKa
min
Axial misalignment
– S ). For the permissible values for the difference in the gap dimension, refer to item
min.
DS
perm.
in rad +
d
1
DS
in degrees + 180
p
perm.
Size 250 500
110 0.5 0.35
125 0.5 0.4
140 0.6 0.4
225 0.8 0.55
250 0.8 0.6
315 1 0.7
315 1 0.7
d
+ 0.1)
1
perm.
1000
S
max
S
min
Angular misalignment
ΔS see item 6.5.4.
perm.
d corresponds to N-EUPEX size in mm
perm.
1
d
1
(Fig. 10) which depends upon the operating speed,
perm.
perm.
Coupling speed in 1/min
750 1000 1500
0.3 0.25 0.2
0.3 0.25 0.25
0.35 0.3 0.25
0.5 0.4 0.35
0.5 0.4 0.35
0.6 0.5 0.4
0.6 0.5 0.4
Coupling speed n in 1/min
40
d corresponds to N-EUPEX size in mm
1
n
Radial misalignment ΔKr
Radial misalignment
and difference in gap
perm.
and
perm.
2000 3000 4000
0.2 0.15 0.1
0.2 0.15 0.15
0.2 0.2 0.15
0.3 0.25
0.3
0.35
0.35
in mm
perm.
FLUDEX 4600 en
Operating instructions 10/2017
5000
0.1
0.1