Barrel Couplings TNK | RINGFEDER®

High-quality RINGFEDER® Barrel Couplings of the TNK series earlier TSCHAN® TK are used in cranes and hoists to optimally connect the drive shaft of the gearbox with the rope drum. Further areas of application are lifting platforms, platform hoists and winch conveyors of all kinds. RINGFEDER® Barrel Couplings are torsionally rigid, easy to assemble and maintain and effectively compensate for axial and angular shaft misalignments. They offer friction-fit torque transmission via hardened steel barrel rollers that fit into semicircular, machined openings on the hub and sleeve and thus ensure safe and reliable bearing of occurring bending loads and radial forces. Inner and outer covers in conjunction with special lip seals prevent foreign objects from penetrating and lubricants from escaping. The integrated wear indicator allows simple and fast condition monitoring.

Barrel Couplings TNK

Barrel Couplings TNK TKV | RINGFEDER®


Reinforced Type for Higher Torque and Radial Load at Same Construction Space

  • High-strength material
  • Outer Diameter D: Up to 850 mm
  • Bores d1Kmax: Up to 425 mm
  • Torque TKmax: Up to 815,000 Nm
  • Radial Load Frad: Up to 490,000 N
Barrel Couplings TNK TKVSG | RINGFEDER®


Highly Robust Type with Retainer Rings for Improved Protection of Barrel Bodies

  • Design as per SEB 666212
  • Outer Diameter D: Up to 1,120 mm
  • Bores d1Kmax: Up to 550 mm
  • Torque TKmax: Up to 1.4 Mio. Nm
  • Radial Load Frad: Up to 670,000 N