180R9346 | AQ240486503020en-001702 | 71
© Danfoss | 2023.03
Operation guide
Installation, Operation and Maintenance APP 53-92 pumps
BoWex-ELASTIC
®
Operating/Assembly instructions
Type HEW, HEW Compact and HEW-ZS
KTR-N
Sheet:
Edition:
40114 EN
11 of 22
7
Please observe protection
note ISO 16016.
Drawn:
2017-04-24 Shg/Hk
Replacing:
KTR-N dated 2013-06-10
Verified:
2017-04-24 Shg
Replaced by:
We recommend to inspect bores, shaft, keyway and feather key for dimensional accuracy
before assembly.
Heating the hubs lightly (approx. 80 °C) allows for an easier mounting on the shaft.
Please pay attention to the ignition risk in potentially explosive atmospheres!
STOP
Touching the heated hubs causes burns.
Please wear safety gloves.
!
With the assembly please make sure that the distance dimension E (see table 1 and 4) is ob-
served to allow for axial clearance of the sleeve while being in operation.
Disregarding this advice may cause damage to the coupling.
!
With the assembly please make sure that the spline of the hub is fully covered by the internal
spline of the elastomer. (Please observe mounting dimensions L, L
HEW1
, L
HEW2
or L
HEW - ZS
.)
Disregarding this advice may cause damage to the coupling.
Applies with type HEW-ZS only (size 100 to G 125)!
Screw the flange hub (component 4.2) with the additional flange (component 4.1) at the tightening torques T
A
specified in table 9.
Table 9: Cap screws DIN EN ISO 4762
Size
100
125
G 125
Tightening torque T
A
[Nm]
355
355
355
Mount the hub, flange hub with additional flange or the coupling flange onto the shaft of the driving and driven
side.
Shift the power packs in axial direction until the mounting dimension L, L
HEW1
, L
HEW2
or. L
HEW-ZS
has been
achieved.
If the power packs have already been firmly assembled, shifting the hub, flange hub or the coupling flange or
coupling flange axially on the shafts allows for adjusting the mounting dimension.
Fasten the hub, flange hub or coupling flange by tightening the setscrews DIN EN ISO 4029 with a cup point
(tightening torques see table 7).
Valid for type HEW-ZS only!
Mount the hub spec. (component 2) in front of the intermediate shaft hub (component 3) and screw the com-
ponents at the tightening torques T
A
specified in table 10.
Table 10: Cap screws DIN EN ISO 4762
Size
48
65
80
G 80
100
125
G 125
Tightening torque
T
A
[Nm]
41
69
120
120
190
295
295
4
Assembly
4.3 Assembly of the coupling