SIEMENS
FLENDER Standard Couplings
Torsionally rigid all-steel couplings — N-ARPEX ARN-6 series
General
6/4
Siemens MD 10.1 N · 04/2017
6
■
Technical specifications
Performance data of type NEN, BEB, and MCECM
The permitted shaft misalignments
K
a
,
K
r
and
K
w
are maxi-
mum values and must not occur simultaneously
(see the table
below).
T
Kmax
permitted five times per hour.
Length-dependent values, such as total length, torsional stiff-
ness, radial misalignment, and total weight and mass moment of
inertia are listed
in the table on page 6/10
.
The torsional stiffness of the plate pack refers to the nominal
range of the coupling. For the determination of the torsional stiff-
ness for a specific operating point outside the nominal range,
consultation is required.
Permitted shaft misalignments for types NEN, BEB, and MCECM
Size
Rated
torque
Maxi-
mum
torque
Overload
torque
Fatigue torque
Maxi-
mum
speed
Maximum permitted shaft misalign-
ment
(The radial misalignment
K
r
depends on the total length. Values
are stated on
page 6/10
.)
Torsional stiffness
for a plate pack
(length-dependent
torsional stiffness
values are listed
in
the table on page
6/10
)
DA
T
KN
T
Kmax
T
KOL
T
Kw0
T
Kw
=
T
Kw0
(1 -
T
N
/
T
KN
)
n
Kmax
K
a
K
w
T
N
=
0 %
T
KN
25 %
T
KN
50 %
T
KN
75 %
T
KN
mm
Nm
Nm
Nm
Nm
Nm
Nm
Nm
rpm
mm
MNm/rad
86-6
350
700
875
175
131
88
44
24000
1.2
1.0°
0.132
103-6
500
1000
1250
250
188
125
63
20000
1.4
0.206
122-6
950
1900
2375
475
356
238
119
17000
2.0
0.463
133-6
1250
2500
3125
625
469
313
156
15000
2.2
0.608
159-6
2100
4200
5250
1050
788
525
263
13000
2.6
0.986
174-6
2400
5200
6500
1300
975
650
325
12000
3.0
1.188
184-6
3800
7600
9500
1900
1425
950
475
11000
3.2
1.826
203-6
5000
10000
12500
2500
1875
1250
625
10000
3.4
2.591
217-6
6200
12400
15500
3100
2325
1550
775
9500
3.4
3.285
251-6
10500
22000
27500
5500
4125
2750
1375
8000
4.1
4.707
268-6
13800
27600
34500
6900
5175
3450
1725
7500
4.2
5.635
291-6
18200
36400
45500
9100
6825
4550
2275
7000
4.6
8.269
318-6
23000
46000
57500
11500
8625
5750
2875
6500
5.0
10.936
343-6
28000
56000
70000
14000
10500
7000
3500
6000
5.3
12.151
Size
Permitted angular misalignment
K
w
0.0°
0.1°
0.2°
0.3°
0.4°
0.5°
0.6°
0.7°
0.8°
0.9°
1.0°
DA
Permitted axial misalignment
K
a
in mm
86-6
1.2
1.1
1.0
0.8
0.7
0.6
0.5
0.4
0.2
0.1
0.0
103-6
1.4
1.3
1.1
1.0
0.8
0.7
0.6
0.4
0.3
0.1
0.0
122-6
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
133-6
2.2
2.0
1.8
1.5
1.3
1.1
0.9
0.7
0.4
0.2
0.0
159-6
2.6
2.3
2.1
1.8
1.6
1.3
1.0
0.8
0.5
0.3
0.0
174-6
3.0
2.7
2.4
2.1
1.8
1.5
1.2
0.9
0.6
0.3
0.0
184-6
3.2
2.9
2.6
2.2
1.9
1.6
1.3
1.0
0.6
0.3
0.0
203-6
3.4
3.1
2.7
2.4
2.0
1.7
1.4
1.0
0.7
0.3
0.0
217-6
3.4
3.1
2.7
2.4
2.0
1.7
1.4
1.0
0.7
0.3
0.0
251-6
4.1
3.7
3.3
2.9
2.5
2.1
1.6
1.2
0.8
0.4
0.0
268-6
4.2
3.8
3.4
2.9
2.5
2.1
1.7
1.3
0.8
0.4
0.0
291-6
4.6
4.1
3.7
3.2
2.8
2.3
1.8
1.4
0.9
0.5
0.0
318-6
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
343-6
5.3
4.8
4.2
3.7
3.2
2.7
2.1
1.6
1.1
0.5
0.0
© Siemens AG 2017