030205.10
5
Flexible propeller shaft coupling BULLFLEX
ENGLISH
General assembly
To achieve a reliably
operating coupling
all the bolts and nuts
must be tightened
with the torques
given. Use a torque
wrench; tightening it
‘in the blind’ will not
lead to satisfying
results.
The propeller shaft
must be inserted into
the hub for a suffi-
cient length (L) and
the shaft and hub
must be free of
grease and dirt (*).
Tighten the bolts with the specified torque ‘T2’, see table.
Take care that the rubber
parts are not affected by
solvents.
Technical data
Bullflex
1
2
4
8
12
16
32
Max. torque to
DIN6270B
75
150
300
600
900
1200
2200
N.m
55
110
221
442
663
885
1622
lbs.ft
DIN6270A
45
90
200
410
540
935
1780
N.m
33
66
147
302
400
690
1313
lbs.ft
Max. power to
DIN6270B
0,8
1,6
3,1
6,3
9,4
12,6
23,0
kW/100 min
-1
1.1
2.1
4.3
8.5
12.8
17.1
31.3
hp/100 RPM
DIN6270A
0,5
0,9
2,1
4,3
7,1
9,8
18,6
kW/100 min
-1
0.6
1.3
2.8
5.8
9.6
13.3
25.3
hp/100 RPM
Mass moment of inertia
J
23·10
-4
57·10
-4
158·10
-4
300·10
-4
595·10
-4
710·10
-4
2058·10
-4
kg.m
2
GD
2
0,009
0,023
0,063
0,12
0,23
0,28
0,82
kgf.m
2
Dyn. torsion stiffness
460
820
1850
6850
10900
13700
24400
N.m/rad
16.88
9.47
4.20
1.13
0.7
0.57
0.32
˚/100 lbs.ft
Axial push stiffness
1,3
3,2
3,9
5,3
6,5
6,7
7,9
kN/mm
0.0134 0.0054 0.0045 0.0033 0.0027 0.0026 0.0022
inch/100 lbs
Axial pull stiffness
0,05
0,05
0,07
0,37
0,43
0,57
0,43
kN/mm
0.35
0.35
0.26
0.05
0.041
0.03
0.041
inch/100 lbs
Maximum angular displacement
2˚
2˚
2˚
2˚
2˚
2˚
2˚
Max. rpm at
2˚
3500
3250
3000
2500
2000
2000
1800
min
-1
, RPM
0˚
7000
6500
6000
5000
4000
4000
3600
Max. thrust force
2000
5000
5000
8000
9000
10000
20000
N
204
510
510
816
917
1020
2040
kgf
450
1124
1124
1798
2023
2248
4496
lbs
Weight, approx.
3
4,5
6,9
12
17
19
38
kg
6.7
9.9
15.2
26.5
37.5
41.9
83.8
lbs
Bullflex
1
2
4
8
12
16
32
M10x30
M10x35
M12x40
M14x45
M16x50
M16x55
M20x70
T2
60 Nm
60 Nm
100 Nm
200 Nm
320 Nm
230 Nm
450 Nm
LOCTITE 270 Studlock
LOCTITE 222 Screwlock
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