SK3
Torque limitersThe SK3 safety coupling from R+W Couplings is easy to assemble and disassemble. Additionally, this coupling features fast and accurate disengagement detection and disengagement. Due to the friction clamp connection, this precision coupling is completely free of play. The maximum torque of the SK3 coupling can also be manually adjusted using an adjusting wrench. This key can be ordered separately. Thanks to the forcibly formed bellows shape, the element can simultaneously compensate for lateral, axial, and angular misalignment errors. For specific inquiries about safety couplings or other precision couplings, please contact VARIODRIVE.
version
Bellows coupling with torque limiter and tapered clamping bush
Limiting torque
5 -2800 Nm
speed
tot 200 rpm
Temperature Range
-30 tot +100 oC
Hub material
Aluminum or steel
Bellows part material
Stainless steel
Safety part material
Steel
System
Single position (standard), multi position, load holding, full disengagement
Disengagement response time
1 - 3 msec
Backlash
none
Service-life
no service
Optional
RVS, ATEX, limit switch, stelsleutel
Datasheets
- Bestelcode instructies
- Uitleg veiligheidssystemen
- ATEX instructies
- Datasheet SK3
- Manual SK koppelingen
Tabel
| SK3 Series | 15 | 30 | 60 | 150 | 200 | 300 | 500 | 800 | 1500 | 2500 | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Overall length ±2 (mm) | A | 62 | 69 | 72 | 80 | 84 | 94 | 93 | 105 | 99 | 111 | 114 | 128 | 123 | 136 | 151 | 175 | 246 |
| Overall length ("F" Version) ±2 (mm) | AF | 62 | 69 | 72 | 80 | 84 | 94 | 93 | 105 | 102 | 114 | 117 | 131 | 127 | 140 | 151 | 184 | 252 |
| Fit length (mm) | C | 19 | 22 | 27 | 32 | 32 | 41 | 41 | 49 | 61 | 80 |
| Inside diameter range H7 (XL-Hub) (mm) | D1/D2 | 10 | 12-23 | 12-29 | 15-37 | 20-44 | 25-56 | 25-60 | 30-60 | 35-70 | 50-100 |
| Outside diameter of coupling (mm) | E | 49 | 55 | 66 | 81 | 90 | 110 | 123 | 133 | 157 | 200 |
| Moment of inertia (10-3 kgm2) | Jges. | 0,10 | 0,15 | 0,28 | 0,30 | 0,75 | 0,80 | 1,90 | 2,00 | 2,80 | 3,00 | 5,5 | 6,0 | 11,0 | 12,8 | 20 | 42 | 257 |
| Approximate weight (kg) | 0,3 | 0,4 | 1,2 | 2,3 | 3 | 5 | 6,5 | 9 | 16,3 | 35 | |
| Torsional stiffness (10³ Nm/rad) | CT | 20 | 15 | 39 | 28 | 76 | 55 | 175 | 110 | 191 | 140 | 420 | 350 | 510 | 500 | 780 | 1304 | 3400 |
| 6x Screw ISO 4017 | I | M4 | M5 | M5 | M6 | M6 | M8 | M8 | M10 | M12 | M16 |
| Tightening torque of the fastening screw (Nm) | I | 4 | 6 | 8 | 12 | 14 | 18 | 25 | 40 | 70 | 120 |
| Distance (mm) | F | 13 | 16 | 18 | 19 | 19 | 23 | 25 | 31 | 30 | 34 |
| Distance, ("F" Version) (mm) | FF | 13 | 14 | 17 | 18 | 17 | 20 | 22 | 20 | 26 | 31 |
| Lateral (mm) | max. | 0,15 | 0,20 | 0,20 | 0,25 | 0,20 | 0,25 | 0,20 | 0,25 | 0,25 | 0,30 | 0,25 | 0,30 | 0,30 | 0,35 | 0,35 | 0,35 | 0,35 |
| Angular (degree) | max. | 1 | 1,5 | 1 | 1,5 | 1 | 1,5 | 1 | 1,5 | 1,5 | 2 | 1,5 | 2 | 2 | 2,5 | 2,5 | 2,5 | 2,5 |
| 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 80-200 | 30-90 60-160 140-280 | 100-200 150-240 220-400 | 80-200 200-350 300-500 | 400-650 500-800 600-900 | 650-850 700-1200 1000-1800 | 1500-2000 2000-2500 2300-2800 |
| Adjustment range available from - to (approx. values) ("F" Version) (Nm) | TKN | 7-15 | 8-20 16-30 | 20-40 30-60 | 20-60 40-80 80-150 | 80-140 130-200 | 120-180 160-300 | 60-150 100-300 250-500 | 200-400 450-800 | 1000-1250 1250-1500 | 1400-2200 1800-2700 |
| Actuation ring Ø (mm) | B | 55 | 65 | 73 | 92 | 99 | 120 | 135 | 152 | 174 | 243 |
| Actuation ring Ø, ("F" Version) (mm) | BF | 62 | 70 | 83 | 98 | 117 | 132 | 155 | 177 | 187 | 258 |
| Actuation distance (mm) | 1,5 | 1,5 | 1,7 | 1,9 | 2,2 | 2,2 | 2,2 | 2,2 | 3 | 3 | |
| Lateral spring stiffness | 475 | 137 | 900 | 270 | 1200 | 380 | 1550 | 435 | 2040 | 610 | 3750 | 1050 | 2500 | 840 | 2000 | 3600 | 6070 | |
| 15 | 30 | 60 | 150 | 200 | 300 | 500 | 800 | 1500 | 2500 |
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.
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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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