Metal Bellows Couplings BK- rigid Shafts Couplings
Please select a Metal Bellows Coupling:
Bellows coupling model BKZ with clamping hub
Series from 20 - 1000 Nm
Longer versions for higher parallel misalignment compensation availible upon request.
Data table Bellows Coupling BKZ Series 20 - 1000 Nm
| Modell BKZ |
Series |
| 20 |
200 |
400 |
1000 |
| Rated torque (Nm) |
TKN | 20 | 200 | 400 | 1000* |
| Overall length (mm) |
A-2 | 82 | 115 | 150 | 185 |
| Outer diameter (mm) |
B | 49 | 66 | 82 | 110 |
| Fit length (mm) |
C | 16,5 | 23 | 27,5 | 34 |
| Inner diameter possible from Ø to Ø H7 (mm) |
D1/2 | 15-28 | 24-35 | 32-40 | 40-60 |
| Fastening screws
ISO 4762 |
E | M5 | M8 | M10 | M12 |
| Tighting torque of the fastening
screw (Nm) |
E | 8 | 40 | 60 | 130 |
| Distance between centers (mm) |
F | 17 | 23 | 27 | 39 |
| Distance (mm) |
G | 6 | 9,5 | 11 | 13 |
| Moment of inertia (10-3 kgm2) |
JI | 0.09 | 0.44 | 1.3 | 11.7 |
| Hub material (standard) (steel on request) |
| Al | Al | Al | Steel |
| approx. weight (kg) |
| 0.23 | 0.62 | 1.2 | 5.6 |
| Torsional stiffness (103 Nm/rad) |
CT | 20.95 | 69 | 85 | 285 |
axial  (mm) |
max. | 2 | 3 | 2 | 4 |
lateral  (mm) |
max. | 0.4 | 0.5 | 0.65 | 0.8 |
Angular  (degrees) |
max. | 1 | 1 | 1 | 1 |
| axial spring stiffness (N/mm) |
Ca | 29.9 | 76.5 | 57 | 74 |
| lateral spring stiffness (N/mm) |
Cr | 1855 | 5500 | 3029 | 4505 |
| Downloads |
20 |
200 |
400 |
1000 |
| 3D-STEP (ZIP-Datei) |
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* Maximum transferable torque of the coupling depends on the hub material.
Ordering example
Required information to order a bellow coupling model BKZ.
Last update: 02.09.2010
