The SK1 safety coupling from R+W Couplings features a simple and compact design. This design enables fast and accurate disengagement detection and disengagement. In the disengaged state, this precision coupling has very low friction. Due to the friction clamp connection, this safety coupling is completely free of play. The integral bearing makes it easy to mount a toothed belt pulley or gear. The maximum torque of the SK1 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.
SK1 Series | 1,5 | 2 | 4,5 | 10 | 15 | 30 | 60 | 150 | 200 | 300 | 500 | 800 | 1500 | 2500 | |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Overall length | A | 23 | 28 | 32 | 39 | 40 | 50 | 54 | 58 | 63 | 70 | 84 | 95 | 109 | 146 |
Overall length ("F" Version) (mm) | AF | 23 | 28 | 32 | 39 | 40 | 50 | 54 | 58 | 66 | 73 | 88 | 95 | 117 | 152 |
Fit length (mm) | C | 7 | 8 | 11 | 11 | 19 | 22 | 27,5 | 32 | 32 | 41 | 41 | 49 | 61 | 80 |
Inside diameter range H7 (mm) | D | 4-8 | 4-12 | 5-14 | 6-20 | 8-22 | 12-22 | 12-29 | 15-37 | 20-44 | 25-56 | 25-56 | 30-60 | 35-70 | 50-100 |
Bolt circle diameter ± 0.2 (mm) | F | 22 | 28 | 35 | 43 | 47 | 54 | 63 | 78 | 85 | 98 | 110 | 120 | 148 | 202 |
Moment of inertia (10-3 kgm2) | Jges. | 0,01 | 0,02 | 0,05 | 0,07 | 0,15 | 0,25 | 0,5 | 1,6 | 2,7 | 5,2 | 8,6 | 20 | 31,5 | 210 |
Approximate weight (kg) | 0,03 | 0,065 | 0,12 | 0,22 | 0,4 | 0,7 | 1 | 1,3 | 2 | 3 | 4 | 5,5 | 10 | 28 | |
Screw ISO 4762 | N | 1xM2,5 | 1xM3 | 1xM4 | 1xM4 | 6xM4 | 6xM5 | 6xM5 | 6xM6 | 6xM6 | 6xM8 | 6xM8 | 6xM10 | 6xM12 | 6xM16 |
Tightening torque of the fastening screw (Nm) | N | 1 | 2 | 4 | 4,5 | 4 | 6 | 8 | 12 | 14 | 18 | 25 | 40 | 70 | 120 |
Distance between centerlines (mm) | P | 6,5 | 8 | 10 | 15 | ||||||||||
Distance (mm) | K | 5 | 6 | 8 | 11 | 8 | 11 | 11 | 12 | 12 | 15 | 21 | 19 | 25 | 34 |
Distance (mm) | L | 11 | 15 | 17 | 22 | 27 | 35 | 37 | 39 | 44 | 47 | 59 | 67 | 82 | 112 |
Distance (mm) | M | 3,5 | 4 | 4 | 5 | ||||||||||
Distance (mm) | R | 1 | 1,3 | 1,5 | 1,5 | 2,5 | 2,5 | 2,5 | 2,5 | 3 | 3 | 4 | 4 | 4,5 | 6 |
Distance, ("F" Version) (mm) | LF | 11,5 | 16 | 18 | 24 | 27 | 37 | 39 | 41,5 | 47 | 51,5 | 68 | 75 | 94 | 120 |
Outside diameter clamp ring Ø (mm) | 0 | 20 | 25 | 32 | 40 | ||||||||||
Flange outside diameter -0.2 (mm) | G | 26 | 32 | 40 | 50 | 53 | 63 | 72 | 87 | 98 | 112 | 128 | 140 | 165 | 240 |
Thread | H | 4xM2 | 4xM2,5 | 6xM2,5 | 6xM3 | 6xM4 | 6xM5 | 6xM5 | 6xM6 | 6xM6 | 6xM8 | 6xM8 | 6xM10 | 6xM12 | 6xM16 |
Thread depth (mm) | I | 3 | 4 | 4 | 5 | 6 | 8 | 9 | 10 | 10 | 10 | 12 | 15 | 16 | 24 |
Adjustment range available from - to (approx. values) (Nm) | TKN | 0,1-0,6 0,4-1 0,8-2 | 0,2-1,5 0,5-2,2 1,5-3,5 | 1-3 2-4,5 3-7 | 2-6 4-12 7-18 | 5-15 12-25 20-40 35-70 | 5-20 10-30 20-60 50-100 | 10-30 25-80 50-115 | 20-70 45-150 80-225 | 30-90 60-160 140-280 250-400 | 100-200 150-240 220-440 | 80-200 200-350 320-650 | 400-650 500-800 650-950 | 600-800 700-1200 1000-1800 | 1500-2000 2000-2500 2300-2800 |
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 4-10 8-15 | 7-15 | 8-20 16-30 | 10-30 20-40 30-60 | 20-60 40-80 80-150 | 80-140 130-200 | 120-180 160-300 300-450 | 50-150 100-300 250-500 | 200-400 450-850 | 1000-1250 1250-1500 | 1400-2200 1800-2700 |
Actuation ring Ø (mm) | B | 23 | 29 | 35 | 45 | 55 | 65 | 73 | 92 | 99 | 120 | 135 | 152 | 174 | 242 |
Actuation ring Ø, ("F" Version) (mm) | BF | 24 | 32 | 42 | 51,5 | 62 | 70 | 83 | 98 | 117 | 132 | 155 | 177 | 187 | 258 |
Pilot diameter h7 (mm) | E | 14 | 22 | 25 | 34 | 40 | 47 | 55 | 68 | 75 | 82 | 90 | 100 | 125 | 168 |
Centering length -0.2 (mm) | J | 2,5 | 3,5 | 5 | 8 | 3 | 5 | 5 | 5 | 5 | 6 | 9 | 10 | 13,5 | 20 |
Diameter h7 (mm) | O2 | 11 | 14 | 17 | 24 | 27 | 32 | 39 | 50 | 55 | 65 | 72 | 75 | 92 | 128 |
Actuation distance (mm) | 0,7 | 0,8 | 0,8 | 1,2 | 1,5 | 1,5 | 1,7 | 1,9 | 2,2 | 2,2 | 2,2 | 2,2 | 3 | 3 | |
1,5 | 2 | 4,5 | 10 | 15 | 30 | 60 | 150 | 200 | 300 | 500 | 800 | 1500 | 2500 |
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.
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.
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.
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.
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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