SK5

Torque limiters

The SK5 safety coupling from R+W Couplings for direct drive applications is equipped with clamp hubs and tapered press fit segments. In addition, this maintenance-free precision coupling has fast and accurate disengagement detection and disengagement. Due to the friction clamp connection, this coupling is absolutely free of play. The design ensures that this safety coupling can be easily assembled and disassembled, and provides both electrical and thermal insulation. The maximum torque can also be manually adjusted with an adjusting key on the SK5 coupling. This key can be ordered separately. Thanks to the forced bellows shape, the element can simultaneously compensate for lateral, axial, and angular misalignments. For specific questions about safety couplings or other precision couplings, please contact VARIODRIVE.

Execution
Bellows coupling with torque limiter and clamp hub with press fit connection.
Limiting torque
0,1 - 850 Nm
Speed
up to 200 rpm
Temperature range
-30 to +100 degrees Celsius
Material hub
Aluminum or steel.
Material bellows part
Stainless steel
Material safety part
Steel
System
Single position (standard), multi position, load holding, full disengagement
Decoupling response time
1 - 3 msec
Spelling
No
Service-life
No service.
Optional
Stainless steel, ATEX, limit switch, adjusting key

Datasheets
  • Bestelcode instructies
  • Uitleg veiligheidssystemen
  • ATEX instructies
  • Datasheet SK5
Manuals
  • Manual SK koppelingen
SK5 drawing
Tabel
SK5 Series1,524,51015306080150300500800
Overall length +0.5 (mm) A4448 | 5460 | 6870 | 7976 | 8389 | 97105 | 115115 | 127116 | 128143 | 157166 | 180196
Overall length +0.5 ("F" Version) (mm) AF4448 | 5460 | 6870 | 7976 | 8389 | 97105 | 115117 | 129118 | 130146 | 160170 | 184207
Clamping fit length C1/C2 (mm) C1/C214/1116/1319/1621/1628/2233/2739/3143/3543/3552/4261/5274/48
Inside diameter range H7 (mm) D13-84-125-165-208-2210-2512-3214-3814-3830-5635-6040-62
Inside diameter range H7 (mm) D23-84-125-145-208-2610-3012-3214-4214-4230-6035-6040-75
Outside diameter (mm) E192532404955668181110123134
Moment of inertia (10-3 kgm2) Jges.0,010,01 | 0,010,02 | 0,020,06 | 0,070,10 | 0,150,27 | 0,320,75 | 0,801,80 | 1,902,50 | 2,806,5 | 7,013,0 | 17,050
Approximate weight (kg) 0,0380,070,20,30,40,61,422,45,99,615
Torsional stiffness (10³ Nm/rad) CT0,71,2 | 1,37 | 58 | 712 | 1018 | 1640 | 3168 | 4590 | 60220 | 190260 | 250390
Lateral ± (mm) max.0,150,15 | 0,200,20 | 0,250,20 | 0,300,15 | 0,200,20 | 0,250,20 | 0,250,20 | 0,250,20 | 0,250,25 | 0,300,30 | 0,350,35
Angular ± (degree) max.11 | 1,51,5 | 21,5 | 21 | 1,51 | 1,51 | 1,51 | 1,51 | 1,51,5 | 22 | 2,52,5
Screw ISO 4762 IM2,5M3M4M4M5M6M8M10M10M12M162xM16
Tightening torque of the fastening screw (Nm) I1244,5815405070130200250
Distance between centerlines (mm) F121315171924283131354550
Distance between centerlines (mm) H681015171923272739412x48
Distance (mm) G3,54556,57,59,51111131718
Distance, ("F" Version) (mm) FF11,51214161922293130364354
Axial recovery force at max. preload compression (N) K48 | 515 | 2325 | 3020 | 2350 | 3070 | 4548 | 3282 | 52157 | 106140 | 96200
Pretensioning, approx (mm) K0,1-050,2-0,70,2-070,2-1,00,2-1,00,5-1,00,5-1,00,5-1,00,5-1,00,5-1,50,5-2,00,5-2,0
Adjustment range available from - to (approx. values) (Nm) TKN0,1-0,6 0,4-1 0,8-1,50,2-1,5 0,5-21-3 3-62-6 4-125-10 8-2010-25 20-4010-30 25-8020-70 30-9020-70 45-150100-200 150-240 200-32080-200 200-350 300-500400-650 500-800 650-850
Adjustment range available from - to (approx. values) ("F" Version) (Nm) TKN0,3-0,8 0,6-1,30,2-1 0,7-22,5-4,52-5 5-107-158-20 16-3020-40 30-6020-60 40-8080-150120-200 160-30060-150 100-300 250-500200-400 450-800
Actuation ring Ø (mm) B232935455565739292120135152
Actuation ring Ø, ("F" Version) (mm) BF24324251,56270839898132155177
DiameterD39,112,114,120,121,124,132,136,136,158,160,160,1
Actuation distance (mm) 0,70,80,81,21,51,51,71,91,92,22,22,2
Lateral spring stiffness7040 | 30290 | 45280 | 145475 | 137900 | 2701200 | 420920 | 2901550 | 4353750 | 10502500 | 8402000
1,524,51015306080150300500800
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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.

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