Metal Bellows Couplings BK
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Bellows Coupling Model BK 4 for Fanuc-drives
Series from 15 - 150 Nm
Data table and Downloads Bellows Coupling BK 4 Series 15 - 150 Nm
|
Model BK 4
|
Series
|
|
15
|
30
|
60
|
150
|
|
Rated torque (Nm)
|
TKN
|
15
|
30
|
60
|
150
|
|
Overall length
(mm)
|
A
|
47
|
54
|
68
|
76
|
72
|
82
|
82
|
94
|
|
Outside diameter of bellows (mm)
|
B
|
49
|
55
|
66
|
81
|
|
Fit length (mm)
|
C
|
19
|
22
|
27
|
32
|
|
Inner diameter
from Ø to Ø H7 (mm)
|
D
|
10-22
|
12-23
|
12-29
|
15-37
|
|
6 x Fastening screws
ISO 4017
|
E
|
M4
|
M5
|
M5
|
M6
|
|
Tighting torque of the
Fastening screws (Nm)
|
4
|
6
|
8
|
12
|
|
3 x draw-off screw
ISO 4017
|
F
|
M4
|
M4
|
M5
|
M5
|
|
Shaft diameter (mm)
|
G
|
20
|
27
|
30
|
30
|
|
Shaft length (mm)
|
H
|
8.5
|
22
|
18
|
20
|
|
Moment of interia
(10-³ kgm²)
|
J ges
|
0.10
|
0.12
|
0.22
|
0.27
|
0.58
|
0.61
|
1.1
|
1.4
|
| approx. weight (kg) |
|
0.25 |
0.4 |
0.8 |
1.35 |
|
Torsional stiffness
(10 ³ Nm/rad)
|
CT
|
20
|
15
|
39
|
28
|
76
|
55
|
175
|
110
|
|
axial (mm)
|
max.
values
|
1
|
2
|
1
|
2
|
1.5
|
2
|
2
|
3
|
|
lateral (mm)
|
0.15
|
0.2
|
0.2
|
0.25
|
0.2
|
0.25
|
0.2
|
0.25
|
|
axial spring stiffness (N/mm)
|
C a
|
25
|
15
|
50
|
30
|
72
|
48
|
82
|
52
|
|
lateral spring stiffness (N/mm)
|
C r
|
475
|
137
|
900
|
270
|
1200
|
420
|
1500
|
435
|
|
cone Ø (Fanuc-Motor) (mm)
|
I
|
11
|
16
|
16
|
16
|
|
Keyway wide (mm)
|
K
|
4
|
5
|
5
|
5
|
Downloads
Short Version |
15
|
30
|
60
|
150
|
| 2D-DXF (ZIP folder) |
|
 |
|
|
|
| 3D-EXE (Viewer) |
|
 |
|
|
|
| 3D-STEP (ZIP folder) |
|
 |
|
|
|
Downloads
Long Version |
15
|
30
|
60
|
150
|
| 2D-DXF (ZIP folder) |
|
|
|
|
|
| 3D-EXE (Viewer) |
|
|
|
|
|
| 3D-STEP (ZIP folder) |
|
|
|
|
|
