EK7
Elastomer couplingsThe EK7 type claw coupling from R+W Couplings features a compact design and is easy to assemble and disassemble. The EK7 coupling offers a backlash-free solution. This precision coupling can be combined with various types of R+W elastomeric spiders. All types of R+W elastomeric spiders dampen vibrations and are electrically insulating, with the ATEX version being conductive. For specific inquiries about claw couplings, please contact VARIODRIVE.
Version
Taper lock bushing with clamping hub
Nom. Torque
2 - 2150 Nm
Speed
tot 15.000 rpm
Temperature range
Depending on the type of elastomer star
Material elastomer star
Precision cast, wear-resistant, and thermally stable polymer
Material hub
Aluminium or steel
Peak load
Tot 1,5x nom. Torque
Backlash
None
Service-life
no service
Optional
RVS, ATEX
Datasheets
- Bestelcode instructies
- ATEX instructies
- Datasheet EK7
- Manual EK koppelingen
Tabel
| EK7 Series | 5 | 10 | 20 | 60 | 150 | 300 | 450 | 800 | |
|---|---|---|---|---|---|---|---|---|---|
| Type (Elastomer insert) | A | B | C | A | B | C | A | B | C | A | B | C | A | B | C | A | B | C | A | B | C | A | B | C | |
| Rated torque (Nm) | TKN | 9 | 12 | 2 | 12,5 | 16 | 4 | 17 | 21 | 6 | 60 | 75 | 20 | 160 | 200 | 42 | 325 | 405 | 84 | 530 | 660 | 95 | 950 | 1100 | 240 |
| Inside diameter possible from Ø to Ø H7 (mm) | Dl | 4-12,7 | 5-16 | 8-25 | 12-32 | 19-36 | 20-45 | 28-60 | 35-80 |
| Inside diameter of elastomer (mm) | DE | 10,2 | 14,2 | 19,2 | 26,2 | 29,2 | 36,2 | 46,2 | 60,5 |
| Outside diameter (mm) | B | 25 | 32 | 42 | 56 | 66,5 | 82 | 102 | 136,5 |
| Outside diameter with screw head (mm) | Bs | 25 | 32 | 44,5 | 57 | 68 | 85 | 105 | 139 |
| Moment of inertia D1 (10-3 kgm2) | J1 | 0,002 | 0,003 | 0,01 | 0,04 | 0,08 | 0,3 | 0,66 | 8 |
| Moment of inertia D2 (10-3 kgm2) | J2 | 0,002 | 0,01 | 0,04 | 0,1 | 0,2 | 1 | 2,6 | 9 |
| Approximate weight (kg) | 0,04 | 0,05 | 0,12 | 0,3 | 0,5 | 0,9 | 1,5 | 7,6 | |
| Fastening screw (ISO 4762) | E1 | M3 | M4 | M5 | M6 | M8 | M10 | M12 | M16 |
| Fastening screw (ISO 4762) | E2 | M4 | M5 | M6 | M8 | M10 | M12 | M16 | M16 |
| Distance between centerlines (mm) | F | 8 | 10,5 | 15,5 | 21 | 24 | 29 | 38 | 50,5 |
| Distance (mm) | G | 4 | 5 | 8,5 | 10 | 11 | 15 | 17,5 | 23 |
| Speed standard (min -1) | 15000 | 13000 | 12500 | 11000 | 10000 | 9000 | 8000 | 4000 | |
| Speed balanced (10³min-1) | 57 | 65 | 43 | 53 | 63 | 40 | 45 | 60 | 35 | 31 | 31 | 25 | 22 | 26 | 18 | 22 | 26 | 16 | 16 | 17 | 12 | 13 | 13 | 8 | |
| Mounting length (mm) | C1 | 8 | 10,3 | 17 | 20 | 21 | 31 | 34 | 46 |
| Fit length (mm) | C2 | 12 | 20 | 25 | 27 | 32 | 45 | 55 | 60 |
| Outside diameter range h7 (mm) | D2 | 10-16 | 13-25 | 14-30 | 23-36 | 26-42 | 38-60 | 42-70 | 42-80 |
| Maximum torque* (Nm) | TKmax | 18 | 24 | 4 | 25 | 32 | 6 | 34 | 42 | 12 | 120 | 150 | 35 | 320 | 400 | 85 | 650 | 810 | 170 | 1060 | 1350 | 190 | 1900 | 2150 | 400 |
| Overall length (mm) | A | 22 | 28 | 40 | 46 | 51 | 68 | 76 | 94 |
| Tightening torque | El | 2 | 4 | 8 | 15 | 35 | 70 | 120 | 290 |
| Tightening torque (Nm) | E2 | 4 | 9 | 12 | 32 | 60 | 110 | 240 | 300 |
| Length (mm) | H | 7 | 7 | 10 | 11 | 16 | 20 | 27 | 27 |
| 5 | 10 | 20 | 60 | 150 | 300 | 450 | 800 |
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.
How can I download 3D drawings?
For most products on our website, you can download the 3D files. If the desired 3D file is not available, please contact sales@variodrive.nl, and we will send you the 3D file as soon as possible.
How can I download software?
You can download the necessary configuration software for most products on our website. For a few products, this might not be possible. In such cases, please contact sales@variodrive.nl, and we will assist you as soon as possible.
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