SKN
Torque limitersThe SKN safety coupling from R+W Couplings is utilized in indirect drive applications. The SKN coupling is compact, maintenance-free, and features a simple design. Thanks to the friction clamp connection, this precision coupling is completely free from play. The integral bearing makes it easy to mount a timing belt pulley or gear. The maximum torque on the SKN safety coupling can also be manually adjusted using an adjusting wrench. This key can be ordered separately. For specific inquiries about safety couplings or other precision couplings, please contact VARIODRIVE.
Version
Torque limiter with clamp hub
Limiting torque
7 - 1500 Nm
Speed
up to 200 rpm
Temperature range
-30 to +120 degrees Celsius
Material
Steel
System
Single position (standard), multi position, load holding, full disengagement
Decoupling response time
1 - 3 milliseconds
Clearance
None
Service-life
No service
Optional
Stainless steel, ATEX, limit switch, adjusting wrench
Datasheets
- Bestelcode instructies
- Uitleg veiligheidssystemen
- ATEX instructies
- Datasheet SKN
- Manual SK koppelingen
Tabel
| SKN Series | 15 | 30 | 60 | 150 | 200 | 300 | 500 | 800 | 1500 | |
|---|---|---|---|---|---|---|---|---|---|---|
| Overall length | A | 47 | 59 | 65 | 71 | 80 | 84 | 101 | 115 | 145 |
| Overall length +0.5 ("F" Version) (mm) | AF | 47 | 59 | 65 | 73 | 83 | 87 | 107 | 126 | 160 |
| Inside diameter range H7 (mm) | D | 12-22 | 14-25,4 | 16-32 | 19-40 | 24-44 | 30-56 | 35-60 | 40-62 | 50-72 |
| Bolt circle diameter ± 0.2 (mm) | F | 47 | 54 | 63 | 78 | 85 | 98 | 110 | 120 | 148 |
| Moment of inertia (10-3 kgm2) | Jges | 0,15 | 0,25 | 0,5 | 1,6 | 2,7 | 5,2 | 8,6 | 20 | 31,5 |
| Approximate weight (kg) | 0,4 | 0,7 | 1 | 1,3 | 2 | 3 | 4 | 5,5 | 10 | |
| Screw ISO 4762 | N | M5 | M6 | M8 | M10 | M12 | M12 | M14 | M16 | M20 |
| Tightening torque of the fastening screw (Nm) | N | 8 | 15 | 40 | 70 | 120 | 130 | 210 | 270 | 500 |
| Distance between centerlines (mm) | P | 17,5 | 19 | 23,5 | 30 | 32,5 | 39 | 43,5 | 45 | 52 |
| Distance (mm) | K | 8 | 11 | 11 | 12 | 12 | 15 | 21 | 19 | 25 |
| Distance (mm) | L | 27 | 35 | 37 | 39 | 44 | 47 | 59 | 67 | 82 |
| Distance (mm) | M | 6,5 | 7,5 | 9,5 | 11 | 13 | 13 | 14,5 | 18 | 22,5 |
| Distance (mm) | R | 2,5 | 2,5 | 2,5 | 2,5 | 3 | 3 | 4 | 4 | 4,5 |
| Distance, ("F" Version) (mm) | LF | 27 | 37 | 39 | 41,5 | 47 | 51,5 | 68 | 75 | 94 |
| Outside diameter clamp ring Ø (mm) | O | 49 | 55 | 67 | 85 | 94 | 110 | 121 | 134 | 157 |
| Flange outside diameter -0.2 (mm) | G | 53 | 63 | 72 | 87 | 98 | 112 | 128 | 140 | 165 |
| Thread | H | 6xM4 | 6xM5 | 6xM5 | 6xM6 | 6xM6 | 6xM8 | 6xM8 | 6xM10 | 6xM12 |
| Thread depth (mm) | I | 6 | 8 | 9 | 10 | 10 | 10 | 12 | 15 | 16 |
| Adjustment range available from - to (approx. values) (Nm) | TKN | 5-10 8-20 | 10-25 20-40 | 10-30 25-80 | 20-70 45-150 80-180 | 30-90 60-160 120-240 | 100-200 150-240 200-320 | 80-200 200-350 300-500 | 400-650 500-800 600-850 | 600-800 700-1200 1000-1800 |
| Adjustment range available from - to (approx. values) ("F" Version) (Nm) | TKN | 7-15 | 8-20 16-30 | 10-30 20-40 30-60 | 20-60 40-80 80-150 | 80-140 130-200 | 120-180 160-300 | 50-150 100-300 250-500 | 200-400 450-800 | 1000-1250 1250-1500 |
| Actuation ring Ø (mm) | B | 55 | 65 | 73 | 92 | 99 | 120 | 135 | 152 | 174 |
| Actuation ring Ø, ("F" Version) (mm) | BF | 62 | 70 | 83 | 98 | 117 | 132 | 155 | 177 | 187 |
| Pilot diameter h7 (mm) | E | 40 | 47 | 55 | 68 | 75 | 82 | 90 | 100 | 125 |
| Centering length -0.2 (mm) | J | 3 | 5 | 5 | 5 | 5 | 6 | 9 | 10 | 13,5 |
| Diameter (mm) | O1 | 35 | 42 | 49 | 62 | 67 | 75 | 84 | 91 | 112 |
| Diameter (mm) | O1 | 35 | 42 | 49 | 62 | 67 | 75 | 84 | 91 | 112 |
| Diameter h7 (mm) | O2 | 27 | 36 | 39 | 50 | 55 | 65 | 72 | 75 | 92 |
| Actuation distance (mm) | 1,5 | 1,5 | 1,7 | 1,9 | 2,2 | 2,2 | 2,2 | 2,2 | 3 | |
| Clamping length (mm) | C | 13,5 | 16 | 20 | 23 | 26 | 26 | 30 | 35 | 46 |
| 15 | 30 | 60 | 150 | 200 | 300 | 500 | 800 | 1500 |
Downloads
- All
- Datasheets
- Manuals
- Datasheets
- 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.
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