RW Logo

SK3 | Torque Limiter Coupling

With Conical Clamp Connections
For Direct Drives

The SK3 is a torque limiting coupling with and actuation ring that moves upon disengagement and can be used to trigger an external sensor. The actuation ring has a one to three millisecond response time which helps provide fast, reliable overload protection at preset (Adjustable) torque levels.
The frictional clamping connection provides for absolutely backlash free operation. The steel tapered conical clamps include jack screws for ease of adjustment and removal.
Made from high strength, hardened steel, the torque limiting portion delivers precise, reliable overload protection. The bellows are made of highly elastic stainless steel.
This coupling will deliver a long maintenance free service life while operated within the technical specifications.
It is a backlash free, low inertia, torsionally rigid solution. Once the torque limit it met, the SK3 disengages within one to three milliseconds with low residual friction after disengagement. This is generally much faster than electronic solutions that typically have reaction times between fifteen and seventeen milliseconds.
Faster response times translate to less wear and tear on equipment, which saves on downtime and expenses.

TORQUE LIMITER WITH CONICAL CLAMP
CONNECTION FOR DIRECT DRIVES

5 - 2,800 NM

SK3 Diagram

SK3 Series Variants

*See above picture for reference

ItemLength ALength AfActRing BAct Ring BfFit Length (mm)I.D. (mm)O.D. EDistance FDistance FFScrewScrew TqMomentInertia 1Weight (kg)Torsion StiffLateralAngularAdj TqAdj Tq FActuation DistLateral Spring Stiff
SK3-1562 | 6962 | 6955621910-22491313M440,10 | 0,150,320 | 150,15 | 0,201 | 1,55-10 | 8-207-151,5475 | 137

SK3-3072 | 8072 | 8065702212-23551614M560,28 | 0,300,439 | 280,20 | 0,251 | 1,510-25 | 20-408-20 | 16-301,5900 | 270

SK3-6084 | 9484 | 9473832712-29661817M580,75 | 0,801,276 | 550,20 | 0,251 | 1,510-30 | 25-8020-40 | 30-601,71200 | 380

SK3-15093 | 10593 | 10592983215-37811918M6121,90 | 2,002,3175 | 1100,20 | 0,251 | 1,520-70 | 45-150 | 80-20020-60 | 40-80 | 80-1501,91550 | 435

SK3-20099 | 111102 | 114991173220-44901917M6142,80 | 3,003191 | 1400,25 | 0,301,5 | 230-90 | 60-160 | 140-28080-140 | 130-2002,22040 | 610

SK3-300114 | 128117 | 1311201324125-561102320M8185,5 | 6,05420 | 3500,25 | 0,301,5 | 2100-200 | 150-240 | 220-400120-180 | 160-3002,23750 | 1050

SK3-500123 | 136127 | 1401351554125-601232522M82511,0 | 12,86,5510 | 5000,30 | 0,352 | 2,580-200 | 200-350 | 300-50060-150 | 100-300 | 250-5002,22500 | 840

SK3-8001511511521774930-601333120M10402097800,352,5400-650 | 500-800 | 600-900200-400 | 450-8002,22000

SK3-15001751841741876135-701573026M12704216,313040,352,5650-850 | 700-1200 | 1000-18001000-1250 | 1250-150033600

SK3-25002462522432588050-1002003431M161202573534000,352,51500-2000 | 2000-2500 | 2300-28001400-2200 | 1800-270036070



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