SIEMENS
FLENDER Standard Couplings
Highly Flexible Couplings — ELPEX-B Series
General information
10/4
Siemens MD 10.1 · 2015
10
■
Technical data
Power ratings
Torsional stiffness and damping
The damping coefficient is
Ψ
= 0.9
The technical data for the elastic tires made of natural rubber
and chloroprene rubber are virtually identical.
Torsional stiffness depends on the ambient temperature and the
frequency and amplitude of the torsional vibration excitation.
More precise torsional stiffness and damping parameters on
request.
With elastic couplings the manufacturing process of the rubber
elements and their aging primarily influence the rigidity value
C
Tdyn
. For this reason calculation must be made with a tolerance
for the dynamic rigidity of
±
20 %. The specified damping coeffi-
cient
Ψ
is a minimum value with the result that the damping per-
formance of the coupling corresponds at least to the specified
value.
Permitted shaft misalignment
The permitted shaft misalignment depends on the operating
speed. As the speed increases, lower shaft misalignment values
are permitted. The correction factors for different speeds are
specified in the following table.
The maximum speed for the respective coupling size must be
observed!
Δ
K
perm
=
Δ
K
1500
⋅
FKV
The restorative force (including in the axial direction) depends
on speed, system torque and shaft misalignment. Restorative
forces on request.
Size
Rated
torque
Maximum
torque
Overload
torque
Fatigue
torque
Maximum
speed
Dynamic
torsional
stiffness for
100 %
load
Permitted shaft misalignment
at speed
n
= 1500 rpm
1)
Axial
Radial
Angle
T
KN
T
Kmax
T
KOL
T
KW
n
Kmax
C
Tdyn
Δ
K
a
Δ
K
r
Δ
K
w
Nm
Nm
Nm
Nm
rpm
Nm/rad
mm
mm
Degrees
105
24
48
72
7
4500
285
1.3
1.1
4
135
66
132
200
20
4500
745
1.7
1.3
4
165
125
250
375
38
4000
1500
2.0
1.6
4
190
250
500
750
75
3600
2350
2.3
1.9
4
210
380
760
1140
114
3100
3600
2.6
2.1
4
235
500
1000
1500
150
3000
5200
3.0
2.4
4
255
680
1360
2040
204
2600
7200
3.3
2.6
4
280
880
1760
2640
264
2300
10000
3.7
2.9
4
315
1350
2700
4050
405
2050
17000
4.0
3.2
4
360
2350
4700
7050
705
1800
28000
4.6
3.7
4
400
3800
7600
11400
1140
1600
44500
5.3
4.2
4
470
6300
12600
18900
1890
1500
78500
6.0
4.8
4
510
9300
18600
27900
2790
1300
110000
6.6
5.3
4
560
11500
23000
34500
3450
1100
160000
7.3
5.8
4
630
14500
29000
43500
4350
1000
200000
8.2
6.6
4
Speed in rpm
500
1000
1500
3000
Correction factor FKV
1.2
1.1
1.0
0.7
1)
The maximum speed of the respective type must be noted. For further
information on permissible shaft misalignment, please see the operating
instructions.
© Siemens AG 2015