ST1

Safety couplings

The ST1 heavy-duty safety coupling from R+W Couplings is used for indirect drive with flange. The ST1 industrial coupling features a robust, compact, and simple design. It is characterized by a highly accurate overload protection. The safety coupling is torsionally rigid and has an integrated bearing for support. The maximum torque of the industrial coupling can also be manually adjusted using an adjusting key. This key can be ordered separately. For specific inquiries about safety couplings or other industrial couplings, please contact VARIODRIVE.

Version
Torque limiter with keyway
Limiting torque
200 - 250.000 Nm
Speed
up to 7000 rpm
Temperature range
-30 to +120 degrees Celsius
Material
Reinforced nitro-carburized steel
Safety elements
Evenly distributed
Clearance
None
Service-life
No service
Optional
ATEX, adjusting key, adjusting plate

Datasheets
  • ATEX instructies
  • Uitleg veiligheidssystemen
  • Datasheet ST1
Manuals
  • Manual ST koppelingen
ST1 drawing
Tabel
ST1 Series2510254060100160250
Overall lengthA1120150183230305320396410600
Fit length (mm)C100121120155210220280290370
Inside diameter range F7 (mm)D30-7540-9040-11060-14090-17080-200100-250100-290200-340
Fastening threadsH12xM1012xM1212xM1612xM1612xM2012xM2012xM2412xM2412xM36
Bolt circle diameter ± 0.3 (mm)F162170220260330360464570600
Bolt circle diameter ST (mm)0154171220270350376490532630
Outside diameter h7 (mm)G192209259298380418530618680
Moment of inertia (approx.) D max. + max. sgmnt (10¯³kgm2)7715137078035704600168502460061300
Moment of inertia (approx.) D max. + max. sgmnt (10¯³kgm2)15244063166179403463850
Distance (mm)L10,516,5458010299128135273
Distance (mm)M51,566,595130170167218225349
Hub outside diameter (mm)p104120170218265295380418508
Mounting length (mm)J3,546888101012
Speed max. (rpm)700060004200380030002500220020001800
Bore depth (mm)A2100124158200210275280360740
Flange outside diameter (mm)B198220270318428459592648361
Wall thickness (mm)K152117202830383878
Thread depth (mm)I152025303535404060
Adjustment range available from - to (KNm)0,2-0,5 | 3xST10 0,5-1,0 | 6xSTIO 1,0-1,5 | 6xST100.7-2 | 3xST15 1,2-4 | 6xST15 3,2-5 | 6xST152-5 | 3xST15 4-10 | 6xST15 6-14 | 9xST156-12 | 6xST15 9-18 | 9xST15 15-25 | 12xST1512-21 | 6xST30 22-32 | 6xST30 32-45 | 9xST3011-18 | 3xST 30 22-36 | 6xST 30 30-55 | 9xST 3024-50 | 3xST70 45-90 | 6xST70 80-110 | 9xST7025-55 | 3xST 70 50-110 | 6xST 70 80-165 | 9xST 70100-170 | 8xST71 160-250 | 12xST71
Pilot diameter h7 (mm)E132145170210270300390450508
Actuation distance (mm)N3,54,5447,57,5101010
Bore for fastening screw (mm)Qmax Ø75max Ø90max Ø110max Ø140max Ø144max Ø200max Ø216max Ø290max Ø290
Allowable max. radial force standard* (KN)5102030405060100240
2510254060100160250
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Frequently Asked Questions

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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