Servo disc couplings

The SCL3 slat coupler from R+W Couplings is available in a single or double slat version. This coupling has a very compact design with high torsional rigidity and can be used in environments where high temperatures and/or corrosion may occur. By using a friction clamping ring connection, this clutch possesses high clamping power, resulting in an absolutely backlash-free precision clutch. In addition, the element can simultaneously accommodate both lateral, axial and angular misalignments. For specific questions about slat couplings or other precision couplings, contact VARIODRIVE.

Slat coupling with external clamping hub
Nom. Torque
25-100 Nm
up to 10,000 rpm
Temperature range
-30 to +130 oC
Blade material
Hub material
Peak load
Up to 1.5x nom. Koppel
No service
Customer-specific design

  • Bestelcode instructies
  • Datasheet SCL3
  • Manual SCL koppelingen
SCL3 drawing
SCL3 Series254060100
SystemS | DS | DS | DS | D
Rated torque(Nm)Tkn254060100
Overall length(mm)A56,6 | 73,256,9 | 75,357,5 | 77,673,7 | 103,8
Outside diameter(mm)B56636882
Fit length(mm)C27272732,5
Inside diameter H7(mm)D1/D218-2820-3027-3524-40
Fastening screwEM5M5M5M5
Tightening torque of the fastening screw(Nm)E5,5666
Shaft diameter limitation(mm)F263138
Moment of inertia(10¯³kgm2)Jges.0,144 | 0,1870,230 | 0,3040,310 | 0,4220,837 | 1,170
Approximate weight(kg)0,299 | 0,3900,384 | 0,5080,435 | 0,6030,835 | 1,156
Torsional stiffness(Nm/rad)CT21000 | 1500032000 | 2400044000 | 3300059000 | 44000
Axial ± (mm)max.0,40 | 0,810,42 | 0,850,50 | 1,000,55 | 1,15
Lateral ± (mm)max.– | 0,29– | 0,32– | 0,35– | 0,53
Angular ± (degree)max.1 | 21 | 21 | 21 | 2
Speed max.(rpm)10000100001000010000
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Frequently Asked Questions

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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.

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