SIEMENS
FLENDER Standard Couplings
Flexible Couplings — RUPEX Series
General information
8/4
Siemens MD 10.1 · 2015
8
■
Function
The motor torque is transmitted to the hub on the drive side via
the shaft-hub connection, which is mostly designed as a keyway
connection. With the aid of elastomer buffers mounted on steel
pins, the torque is conducted to the hub on the output side.
The hub on the output side further transmits the torque to the
driven machine or a gear unit located in between. Because of
the primarily compression-loaded buffers, the coupling has a
progressive torsional stiffness.
■
Technical data
Power ratings
All article numbers listed below apply to standard buffers of NBR
material in the 80 ShoreA variant.
Size
Rated torque for buffer type
Torsional stiffness at 50 %
capacity utilization for buffer type
Assembly
Permitted shaft misalignment
at speed
n
= 1500 rpm
1)
65 ShoreA
80 ShoreA
90 ShoreA
65 ShoreA
80 ShoreA
90 ShoreA
Gap
dimension
Radial
Angle
T
KN
T
KN
T
KN
C
Tdyn 50 %
C
Tdyn 50 %
C
Tdyn 50 %
Δ
S
Δ
K
r
Δ
K
w
Nm
Nm
Nm
kNm/rad
kNm/rad
kNm/rad
mm
mm
Degree
105
120
200
200
5
13
21
1.0
0.21
0.12
125
210
350
350
9
25
37
1.0
0.23
0.11
144
300
500
500
15
43
64
1.0
0.25
0.10
162
450
750
750
20
55
83
1.5
0.27
0.10
178
570
950
950
31
85
130
1.5
0.29
0.09
198
780
1300
1300
43
123
187
1.5
0.30
0.09
228
1300
2200
2200
65
184
270
1.5
0.34
0.09
252
1650
2750
2750
92
256
380
1.5
0.36
0.08
285
2600
4300
4300
141
390
560
1.5
0.40
0.08
320
3300
5500
5500
195
540
790
1.5
0.43
0.08
360
4700
7800
7800
276
610
940
1.5
0.48
0.08
400
7500
12500
12500
410
1130
1710
1.5
0.52
0.07
450
11000
18500
18500
570
1600
2380
1.5
0.57
0.07
500
15000
25000
25000
860
2350
3600
1.5
0.62
0.07
560
23500
39000
39000
1130
3070
4700
2.0
0.68
0.07
630
31000
52000
52000
1640
4600
7400
2.0
0.75
0.07
710
50000
84000
84000
2560
7200
10900
2.0
0.84
0.07
800
66000
110000
110000
3900
10700
16700
2.0
0.93
0.07
900
90000
150000
150000
5200
14300
22500
2.5
1.03
0.07
1000
115000
195000
195000
7700
21300
33000
2.5
1.14
0.07
1120
160000
270000
270000
9800
27300
44000
2.5
1.26
0.06
1250
205000
345000
345000
14000
39000
62000
2.5
1.39
0.06
1400
320000
530000
530000
22800
62000
97000
3.0
1.55
0.06
1600
450000
750000
750000
37000
103000
160000
3.0
1.76
0.06
1800
585000
975000
975000
48000
133000
208000
4.0
1.96
0.06
2000
780000
1300000
1300000
73000
201000
314000
4.0
2.17
0.06
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