BK8
Bellows couplingsThe BK8 bellows coupling from R+W Couplings features a compact design and is equipped with a robot flange on one side for direct mounting. The coupling is very easy to assemble and disassemble. Thanks to the use of a friction clamp connection, this precision coupling is completely free from play. Thanks to the forcefully formed bellows, the element can simultaneously accommodate lateral, axial, and angular misalignments. Thanks to the forcefully formed bellows, the element can simultaneously accommodate lateral, axial, and angular misalignments. For specific inquiries about bellows couplings, please contact VARIODRIVE.
Version
Robot flange and clamp hub
Nom. Torque
50-2600 Nm
Speed
up to 10,000 rpm
Temperature range
-30 to +100 oC
Bellows material
RVS
Hub material
Aluminum or steel
Intermediate flange material
Steel
Peak load
Up to 1.5 times the nominal value. Torque
Clearance
None
Service-life
No service
Optional
ATEX, Clean room version
Datasheets
- Bestelcode instructies
- ATEX instructies
- Datasheet BK8
- Manual BK/MK koppelingen
Tabel
| BK8 Series | 15 | 60 | 150 | 300 | 1500 | |
|---|---|---|---|---|---|---|
| Inside diameter possible from Ø to Ø H7 (mm) | DI | 12-28 | 14-35 | 19-42 | 24-60 | 50-80 |
| Moment of inertia (10-3 kgm2) | Jges. | 0,15 | 0,65 | 1,3 | 5,5 | 45 |
| Approximate weight (kg) | 0,3 | 0,7 | 1 | 2,8 | 10 | |
| Axial ± (mm)) | max. | 1 | 1,5 | 2 | 2,5 | 3 |
| Lateral ± (mm) | max. | 0,25 | 0,25 | 0,25 | 0,25 | 0,25 |
| Angular ± (degree) | max. | 1 | 1 | 1 | 1 | 1 |
| Fastening screw (ISO 4762) | El | 1xM5 | 1xM8 | 1xM10 | 1xM12 | 2xM20 |
| Tightening torque of the clamping screw max. (Nm) | El | 8 | 45 | 80 | 120 | 470 |
| Distance between centerlines (mm) | 1x17,5 | 1x23 | 1x27 | 1x39 | 2x55 | |
| Distance (mm) | G | 6,5 | 9,5 | 11 | 13 | 22,5 |
| Mounting length (mm) | Cl | 16,5 | 23 | 27,5 | 34 | 55 |
| Flange centering diameter (mm) | 40h7 | 63h7 | 80h7 | 100h7 | 160h7 | |
| Flange bolt circle / thread Ø (mm) | 31,5 / 8x M5 | 50 / 8x M6 | 63 / 12x M6 | 80 / 12 M8 | 125/ 12x M10 | |
| Maximum torque* (Nm) | 50 | 210 | 380 | 750 | 2600 | |
| Length (mm) | A1 | 48,5 | 67 | 72 | 90 | 140 |
| Length -2 (mm) | A2 | 68 | 97 | 101 | 128 | 190 |
| Outside diameter of hub (mm) | Bl | 49 | 66 | 82 | 110 | 157 |
| Flange outside diameter (mm) | B2. | 63,5 | 86 | 108 | 132 | 188 |
| Bolt circle diameter (mm) | DL | 56,5 | 76 | 97 | 120 | 170 |
| Thread (mm) | DL | 10xM4 | 10xM5 | 10xM6 | 12xM6 | 16xM8 |
| 15 | 60 | 150 | 300 | 1500 |
Downloads
- All
- Datasheets
- Manuals
- Datasheets
- Datasheets
- Datasheets
- Manuals
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Frequently Asked Questions
How can I place an order with VARIODRIVE?
You can place an order with VARIODRIVE by sending your request to orders@variodrive.nl. Your request will then be processed directly by our internal sales team.
Why should I choose a complete solution from VARIODRIVE?
By choosing VARIODRIVE’s complete solution, you won’t need to worry about integrating different drive components into the machine’s drive chain. We stand behind our complete solution and can guarantee its functionality.
Why should I choose VARIODRIVE's system warranty?
Due to our in-depth knowledge of our products and their integration into applications, we can provide a system warranty. At that point, we guarantee that the application will function using our motion control and traction solutions.
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