SK2
Torque limitersThe SK2 safety coupling from R+W Couplings is easy to assemble and disassemble. Additionally, this precision coupling features fast and accurate disengagement detection and disengagement. Due to the friction clamp connection, this safety coupling is completely free of play. The maximum torque of the SK2 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 clamping hub connection
Limiting torque
0,1 - 850 Nm
Speed
tot 200 rpm
Temperature Range
-30 tot +120 oC
Hub material
Aluminum or steel
Bellows part material
Stainless steel
Safety part material
Steel
Systeem
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 SK2
- Manual SK koppelingen
Tabel
| SK2 Series | 1,5 | 2 | 4,5 | 10 | 15 | 30 | 60 | 80 | 150 | 200 | 300 | 500 | 800 | 1500 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Overall length | A | 42 | 46 | 51 | 57 | 65 | 65 | 74 | 75 | 182 | 87 | 95 | 102 | 112 | 115 | 127 | 116 | 128 | 128 | 140 | 139 | 153 | 163 | 177 | 190 | 223 |
| Overall length ("F" Version) (mm) | AF | 42 | 46 | 51 | 57 | 65 | 65 | 74 | 75 | 82 | 87 | 95 | 102 | 112 | 117 | 129 | 118 | 130 | 131 | 143 | 142 | 156 | 167 | 181 | 201 | 232 |
| Fit length (mm) | C | 11 | 13 | 16 | 16 | 22 | 27 | 31 | 35 | 35 | 40 | 42 | 51 | 48 | 67 |
| Inside diameter range H7 (XL-Hub) (mm) | D1/D2 | 3-8 | 04-12 | 5-14 | 6-16 | 10-26 | 12-30 | 15-32 | 19-42 | 19-42 | 24-45 | 30-60 | 35-60 | 40-75 | 50-80 |
| Outside diameter of coupling (mm) | E | 19 | 25 | 32 | 40 | 49 | 55 | 66 | 81 | 81 | 90 | 110 | 123 | 134 | 157 |
| Moment of inertia (10-3 kgm2) | Jges | 0,01 | 0,01 | 0,01 | 0,02 | 0,02 | 0,06 | 0,07 | 0,10 | 0,15 | 0,27 | 0,32 | 0,75 | 0,80 | 1,80 | 1,90 | 2,50 | 2,80 | 5,10 | 5,30 | 11,5 | 11,8 | 22,8 | 23,0 | 42 | 83 |
| Approximate weight (kg) | 0,047 | 0,07 | 0,2 | 0,3 | 0,4 | 0,6 | 1 | 2 | 2,4 | 4 | 5,9 | 9,6 | 14 | 21 | |
| Torsional stiffness (10³ Nm/rad) | CT | 0,7 | 1,2 | 1,3 | 7 | 15 | 9 | 18 | 20 | 15 | 39 | 28 | 76 | 55 | 129 | 85 | 175 | 110 | 191 | 140 | 420 | 350 | 510 | 500 | 780 | 1304 |
| Lateral ± (mm) | max. | 0,15 | 0,15 | 0,20 | 0,20 | 0,25 | 0,20 | 0,30 | 0,15 | 10,20 | 0,20 | 0,25 | 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 |
| Angular ± (degree) | max. | 1 | 1 | 1,5 | 1,5 | 2 | 1,5 | 2 | 1 | 1,5 | 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 |
| Screw ISO 4762 | I | M2,5 | M3 | M4 | M4 | M5 | M6 | M8 | M10 | M10 | M12 | M12 | M16 | 2xM16 | 2xM20 |
| Tightening torque of the fastening screw (Nm) | I | 1 | 2 | 4 | 4,5 | 8 | 15 | 40 | 50 | 70 | 120 | 130 | 200 | 250 | 470 |
| Distance between centerlines (mm) | H | 6 | 8 | 10 | 15 | 17 | 19 | 23 | 27 | 27 | 31 | 39 | 41 | 2x48 | 2x55 |
| Distance (mm) | G | 3,5 | 4 | 5 | 5 | 6,5 | 7,5 | 9,5 | 11 | 11 | 12,5 | 13 | 17 | 18 | 22,5 |
| Distance (mm) | F | 12 | 13 | 15 | 17 | 19 | 24 | 30 | 31 | 31 | 35 | 35 | 45 | 50 | 63 |
| Distance, ("F" Version) (mm) | FF | 11,5 | 12 | 14 | 16 | 19 | 22 | 29 | 31 | 30 | 33 | 35 | 43 | 54 | 61 |
| Adjustment range available from - to (approx. values) (Nm) | TKN | 0,1-0,6 0,4-1 0,8-1,5 | 0,2-1,5 0,5-2 | 1-3 3-6 | 2-6 4-12 | 5-10 8-20 | 10-25 20-40 | 10-30 25-80 | 20-70 30-90 | 20-70 45-150 80-180 | 30-90 60-160 120-240 | 100-200 150-240 200-320 | 80-200 200-350 300-500 | 400-650 500-800 650-850 | 650-800 700-1200 1000-1800 |
| Adjustment range available from - to (approx. values) ("F" Version) (Nm) | TKN | 0,3-0,8 0,6-1,3 | 0,2-1 0,7-2 | 2,5-4,5 | 2-5 5-10 | 7-15 | 8-20 16-30 | 20-40 30-60 | 20-60 40-80 | 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 |
| Actuation ring Ø (mm) | B | 23 | 29 | 35 | 45 | 55 | 65 | 73 | 92 | 92 | 99 | 120 | 135 | 152 | 174 |
| Actuation ring Ø, ("F" Version) (mm) | BF | 24 | 32 | 42 | 51,5 | 62 | 70 | 83 | 98 | 98 | 117 | 132 | 155 | 177 | 187 |
| Diameter | D3 | 9 | 12 | 14 | 20 | 21,1 | 24,1 | 32,1 | 36,1 | 36,1 | 42,1 | 58,1 | 60,1 | 60,1 | 68,1 |
| Actuation distance (mm) | 0,7 | 0,8 | 0,8 | 1,2 | 1,5 | 1,5 | 1,7 | 1,9 | 1,9 | 2,2 | 2,2 | 2,2 | 2,2 | 3 | |
| Lateral spring stiffness | 70 | 40 | 30 | 290 | 45 | 280 | 145 | 475 | 137 | 900 | 270 | 1200 | 420 | 920 | 255 | 1550 | 435 | 2040 | 610 | 3750 | 1050 | 2500 | 840 | 2000 | 3600 | |
| 1,5 | 2 | 4,5 | 10 | 15 | 30 | 60 | 80 | 150 | 200 | 300 | 500 | 800 | 1500 |
Downloads
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