SIEMENS
24
Siemens MD 10.3 · 2015
FLENDER Standard Couplings
Flexible Couplings – BIPEX-S Series
Technical information
■
Technical specifications
Power ratings
Torsional stiffness and damping
The values stated in the above table apply to a capacity utiliza-
tion of 50 %, an excitation amplitude of 10 %
T
KN
with a fre-
quency of 10 Hz and an ambient temperature of 20 °C. The dy-
namic torsional stiffness is load-dependent and increases in
proportion to capacity utilization.
The relative damping coefficient is
ψ
= 0.8 for 98, 92 and 80
ShA
ψ
= 0.75 for 64
ShD.
T
KOL
is the torque which can be transmitted very rarely as max-
imum torque by the coupling.
Permitted shaft misalignment
The permitted shaft misalignments
Δ
K
a
,
Δ
K
r
and
Δ
K
w
are maxi-
mum values and must not occur simultaneously. The following
formula can be used to roughly calculate whether combinations
of misalignments are permissible:
Size
Shore hard-
ness
Rated
torque
Maximum
torque
Maximum
speed
Maximum
speed
Maximum
speed
Torsional
stiffness
Radial stiff-
ness
Permitted shaft misalignment
Type
Type
Type
BNN
BGG, BHH,
BCC, BCS
BKK
T
KN
T
KOL
n
Kmax
n
Kmax
n
Kmax
C
Tdyn
C
r
Δ
K
a
Δ
K
r
Δ
K
w
Nm
Nm
rpm
rpm
rpm
Nm/rad
N/mm
mm
mm
degrees
5
80 ShoreA
0.3
0.6
47500
38000
–
10
82
0.4
0.12
1.1
92 ShoreA
0.5
1.0
16
154
0.4
0.06
1
98 ShoreA
0.9
1.8
25
296
0.4
0.04
0.9
7
80 ShoreA
0.7
1.4
35000
26000
–
26
114
0.6
0.15
1.1
92 ShoreA
1.2
2.4
43
219
0.6
0.1
1
98 ShoreA
2.0
4.0
69
421
0.6
0.06
0.9
64 ShoreD
2.4
4.8
103
630
0.6
0.04
0.8
9
80 ShoreA
1.8
3.6
24000
18000
–
52
125
0.8
0.19
1.1
92 ShoreA
3.0
6
95
262
0.8
0.13
1
98 ShoreA
5.0
10
155
518
0.8
0.08
0.9
64 ShoreD
6.0
12
224
769
0.8
0.05
0.8
14
80 ShoreA
4.0
8
16000
12000
25000
180
153
1
0.21
1.1
92 ShoreA
7.5
15
344
335
1
0.15
1
98 ShoreA
12.5
25
513
655
1
0.09
0.9
64 ShoreD
16
32
702
855
1
0.06
0.8
19
80 ShoreA
5
10
12000
9500
18500
1030
582
1.2
0.15
1.1
92 ShoreA
10
20
1720
1125
1.2
0.1
1
98 ShoreA
17
34
2580
2010
1.2
0.06
0.9
64 ShoreD
21
42
3720
2950
1.2
0.04
0.8
24
92 ShoreA
35
70
8700
7000
13900
4300
1490
1.4
0.14
1
98 ShoreA
60
120
6190
2550
1.4
0.1
0.9
64 ShoreD
75
150
8930
3695
1.4
0.07
0.8
28
92 ShoreA
95
190
7400
6000
11800
6880
1785
1.5
0.15
1
98 ShoreA
160
320
10310
3210
1.5
0.11
0.9
64 ShoreD
200
400
13050
4350
1.5
0.08
0.8
38
92 ShoreA
190
380
6000
4700
9600
13750
2350
1.8
0.17
1
98 ShoreA
325
650
21490
4410
1.8
0.12
0.9
64 ShoreD
405
810
31620
6475
1.8
0.09
0.8
42
92 ShoreA
265
530
5000
4000
8000
24300
2440
2
0.19
1
98 ShoreA
450
900
48000
5575
2
0.14
0.9
64 ShoreD
560
1120
71700
7280
2
0.1
0.8
48
92 ShoreA
310
620
4600
3500
7100
18055
2590
2.1
0.23
1
98 ShoreA
525
1050
55925
5950
2.1
0.16
0.9
64 ShoreD
655
1310
90500
8280
2.1
0.11
0.8
Δ
K
r act
Δ
K
r
-------------------
Δ
K
a act
Δ
K
a
--------------------
Δ
K
w act
Δ
K
w
---------------------
1
<
+
+
© Siemens AG 2015