KTR Kupplungstechnik
GmbH
D-48407 Rheine
B o W e x - E L A S T I C
®
Operating-/Assembly Instructions
Design 065 (HEW1 and HEW2)
KTR-N
sheet:
edition:
40114 E
10
4
Gezeichnet:
08.04.04 Sha/Hk
Ersatz für:
KTR-N vom 01.12.99
Schutzvermerk
ISO 16016 beachten.
Geprüft:
08.04.04 Sha
Ersetzt durch:
5 Enclosure A
Hints and instructions regarding the use in
hazardous areas
5.3 Approximate values of wear
Table 7:
limits of wear each hub
limits of wear each hub
BoWex
®
size
friction
X
max.
[mm]
torsional backlash
∆
S
max.
[mm]
BoWex
®
size
friction
X
max.
[mm]
torsional backlash
∆
S
max.
[mm]
42
1,0 1,7
80
1,6 2,7
48
1,0 1,8 G
80
1,6 2,7
65 1,4 2,5
5.4 Permissible coupling materials in the
hazardous area
In explosion group
IIB aluminium
is not allowed as material for coupling hubs.
5.5
Marking of coupling for the hazardous area
Couplings for the use in hazardous areas are marked for the respectively permissible conditions of use.
Explosion group IIB:
II 2G c IIB T4 -20°C
≤
T
a
≤
+80°C
5.6 Starting
Before putting the coupling into operation, check the tightness of the grub screws in the hubs, the alignment and
the distance dimension E and correct, if necessary, and also check all screw connections regarding the stipulated
tightening torques dependent on the type of coupling.
If used in hazardous areas, the grub screws must be additionally secured against self-loosening to
fix the hub, e. g. with Loctite (medium strength).
Last but not least, the coupling protection against unintended contact must be fixed.
Coupling protection in the hazardous area.
Covering of the coupling
The couplings must be provided with firm coverings protecting the couplings against falling objects.
There can be regular openings in the coverings which may not exceed the following dimensions:
circular
openings
diameter in mm
rectangular openings
side length in mm
top surface of the covering
4
4
side parts of the covering
8
8
