STR
Safety couplingsThe STR heavy duty safety coupling from R+W Couplings is a special robust version. The STR safety coupling has a compact and simple design, and a very accurate overload protection. The industrial coupling is torsionally rigid and has an integral heavy duty bearing for support. This safety coupling is used wherever torque overload occurs. The maximum torque of the industrial coupling can also be adjusted manually with an adjustment key. This key can be ordered separately. For specific questions about safety couplings or other industrial couplings, please contact VARIODRIVE.
Performance
Torque limiter with keyway and reinforced bearings
Limiting coupler
200 - 250.000 Nm
Speed
up to 7000rpm
Temperature range
-30 to +120 oC
Material
Reinforced nitro-carburised steel
Safety elements
Evenly distributed
Clearance
None
Service-life
No service
Optional
ATEX, adjusting key, adjusting plate
Datasheets
- ATEX instructies
- Uitleg veiligheidssystemen
- Datasheet STR
- Manual ST koppelingen
Tabel
| STR Series | 2 | 5 | 10 | 25 | 40 | 60 | 100 | 160 | 250 | |
|---|---|---|---|---|---|---|---|---|---|---|
| Overall length | A1 | 170 | 190 | 230 | 264 | 330 | 370 | 470 | 490 | 600 |
| Fit length (mm) | C | 95 | 112 | 122 | 150 | 191 | 212 | 275 | 282 | 361 |
| Inside diameter range F7 (mm) | D | 30-80 | 40-90 | 40-110 | 60-140 | 90-170 | 80-200 | 100-250 | 130-290 | 200-340 |
| Fastening threads | H | 12xM10 | 12xM12 | 12xM16 | 12xM16 | 12xM20 | 12xM20 | 12xM24 | 12xM24 | 12xM36 |
| Bolt circle diameter ± 0.3(mm) | F | 162 | 170 | 220 | 260 | 330 | 360 | 464 | 570 | 600 |
| Bolt circle diameter ST (mm) | O | 154 | 171 | 220 | 270 | 350 | 376 | 490 | 532 | 630 |
| Outside diameter h7 (mm) | G | 192 | 209 | 259 | 298 | 380 | 418 | 530 | 618 | 680 |
| Moment of inertia (approx.) D max. + max. sgmnt (10¯³kgm2) | 77 | 168 | 484 | 1028 | 4107 | 5925 | 20000 | 31830 | 61300 | |
| Moment of inertia (approx.) D max. + max. sgmnt (10¯³kgm2) | 21 | 28 | 55 | 86 | 196 | 244 | 502 | 636 | 978 | |
| Distance (mm) | L | 50 | 56 | 74 | 97 | 111 | 99 | 179 | 189 | 273 |
| Distance (mm) | M | 81 | 96,5 | 115 | 138 | 171 | 167 | 255 | 265 | 349 |
| Hub outside diameter (mm) | p | 112 | 122 | 170 | 218 | 265 | 295 | 380 | 422 | 508 |
| Mounting length (mm) | J | 3,5 | 3,5 | 6 | 8 | 8 | 8 | 10 | 10 | 12 |
| Speed max. (rpm) | 8500 | 6300 | 5000 | 4000 | 3600 | 3200 | 2200 | 2000 | 1800 | |
| Flange outside diameter (mm) | B | 198 | 220 | 270 | 318 | 428 | 459 | 592 | 648 | 740 |
| Wall thickness (mm) | K | 16 | 21 | 25 | 28 | 48 | 49,5 | 67 | 67 | 78 |
| Thread depth (mm) | I | 18 | 22 | 28 | 28 | 36 | 36 | 40 | 40 | 60 |
| Adjustment range available from - to (KNm) | 0,2-0,5 | 3xST11 0,5-1,0 | 6xST11 1,0-1,5 | 6xST11 | 0,7-2 | 3xST16 1,2-4 | 6xST16 3,2-5 | 6xST16 | 2-5 | 3xST16 4-10 | 6xST16 6-1419xST16 | 6-12 | 6xST16 9-18 | 9xST16 15-25 | 12xST16 | 12-21 | 6xST31 22-32 | 6xST31 32-45 | 9xST31 | 11-18 | 3xST31 22-36 | 6xST31 30-55 | 9xST31 | 24-50 | 3xST71 45-90 | 6xST71 80-110 | 9xST71 | 25-55 | 3xST71 50-110 | 6xST71 80-165 | 9xST71 | 100-170 | 8x160-250 | 12x 160-250 | 12xST71 | |
| Pilot diameter h7 (mm) | E | 132 | 145 | 170 | 210 | 270 | 300 | 390 | 450 | 508 |
| Actuation distance (mm) | N | 3,5 | 4,5 | 4,5 | 4,5 | 7,5 | 7,5 | 10 | 10 | 10 |
| Bore for fastening screw (mm) | Q | 18 | 18 | 26 | 32 | 38 | 44 | 44 | 52 | 52 |
| Allowable max. radial force standard* (KN) | 10 | 20 | 40 | 60 | 80 | 100 | 130 | 200 | 240 | |
| 2 | 5 | 10 | 25 | 40 | 60 | 100 | 160 | 250 |
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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