Operation Manual
Page
6
Of
10
EK2 Elastomer Coupling series 20 to 800
Created
2019-12-19
Version
2021-08-13
Marking
The EK2/xxx/D/xx/xx elastomer couplings for use in potentially explosive atmospheres are marked with a job-specific identification
number. The last digit is the end digit of production year. Regarding Directive 2014/34/EU (ATEX), it is a device that receives a CE
mark and an EU declaration of conformity.
Type plate example
Attached to a hub. If the complete type plate cannot be mounted on the coupling, it is replaced by a shortened version. The "x" stands
for special conditions.
2. PLANNING AND TECHNICAL DATA
Planning
Installation as an example
Pos
Lot
Naming
DIN/ISO
Standard,
short-term,
drawing or
material
1
2
Hub
420008
2
1
Elastomer insert 64D
black
4000203
3
2
Clamping screw
ISO 4762
lateral offset
angular offset
axial offset
R+W EK2
elastomer
couplings shall compensate lateral, angular and axial offset of two horizontal shafts by means of an elastomer
insert consisting of several segments. Zero backlash of the coupling is given by pre-tensioning of this elastomer insert.
Explanation of the type key
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
E
K
2
/
x
x
x
/
D
/
x
x
/
x
x
E
las
to
mer
c
o
u
p
lin
g
w
it
h
c
lampin
g
hub
S
e
p
a
ra
to
r
S
iz
e
S
e
p
a
ra
to
r
E
las
to
mer
ins
e
rt
S
e
p
a
ra
to
r
H
o
le
d
iameter
S
e
p
a
ra
to
r
H
o
le
d
iameter
Spaces are not populated, and the type key may be shortened accordingly.
D at position 9 as a mark for ATEX execution with electroconductive elastomer insert.
In the event of incorrect operation or misuse, including vertical installation, there are risks that can
also result in personal and/or material damage caused by an explosion. The elastomer couplings are
to be used only for the intended use as well as in a safety-perfect condition.