Bellows coupling BKBK 1222: 12 mm diameter, 22 mm long, clamping hub
The BKBK 1222 is a bellows coupling with bronze bellows. It is characterised by its very small design: only 22 mm long and 12 mm in diameter. The difference to the BKBS with screw hub are the clamping hubs and a particularly low weight of only 4 grams as well as a slightly higher moment of inertia of 2.5 gmm2. The other data and parameters are the same. The bronze bellows are non-magnetic, the flange is made of nickel-plated brass. A classic area of application is slip ring units in electric motors, for example.
Technical data - Bellows coupling with bronze bellow
| technical data | BKBK 1222 | |
|---|---|---|
| max. speed | min-¹ | 10.000 |
| max. torque | Ncm | 15 |
| max. offset off shafts | ||
| radial | mm | ± 0,2 |
| axial | mm | ± 0,4 |
| angular | Grad | ± 2,5 |
| torsion spring stiffness | Nm/rad | 45,0 |
| radial spring stiffness | N/mm | 30,0 |
| moment of inertia | gcm2 | 2,5 |
| max. clambing torque | Ncm | 30 |
| temperature range | °C | 90 |
| weight appr. | g | 4 |
| material flange | brass nickel | plated |
| material bellows | bronze nickel | plated |
Bore combination
| d1/d2 | 02 | 03 | 04 |
| 02 | x | x | x |
| 03 | x | x | |
| 04 | x |
To download the step file, please select the required bore combination.
