Steel Disc Couplings TND | RINGFEDER®

Torsionally rigid, absolutely backlash-free steel disc couplings of the new series RINGFEDER® TND – originating from the proven TSCHAN® POSIMIN® and GERWAH® series – are suitable for the most diverse applications and particularly ideal for all drive tasks requiring freedom from wear and maintenance as well as excellent misalignment compensation and positioning accuracy. The characteristic and functional centerpiece of these powerful couplings are disc packs developed on the basis of in-depth FEM analysis, that consist of multiple circular, torsionally flexible single discs made of stainless spring steel connected by means of high-precision sleeves to form a compact unit. High-strength screws alternately connect the disc packs, if necessary via mounted spacers, to the coupling hubs, so that the required torque is transmitted reliably, precisely and safely by the steel discs which are loaded by tension and compression. At the same time, this ensures the desired compensation capability for angular, axial and, depending on the coupling type, also radial shaft misalignments at minimum restoring forces. Thanks to the unitized design of the series and the extensive, highly flexible modular system, there is always one coupling version available that is optimally suited for the users' individual application.

Steel Disc Couplings TND

Steel Disc Couplings TND HSH | RINGFEDER®

TND HSH

Standard Hubs with Keyway, Single-Jointed, without Spacer

  • 11 Sizes
  • Max. Bore Diameter
    d: 32-215 mm
  • Max. Outer Diameter
    D1: 70.5-510 mm

  • Hub Distance E: 7.5-47 mm
  • Overall Length L: 86.5-527 mm
  • Rot. Speed nmax: 1,500-8,400 1/min
  • Torque TKN: 170-130,000 Nm
Steel Disc Couplings TND HDH | RINGFEDER®

TND HDH

Standard Hubs with Keyway, Double-Jointed, with Spacer

  • 11 Sizes
  • Max. Bore Diameter
    d
    : 32-215 mm
  • Max. Outer Diameter
    D1: 70.5-510 mm

  • Hub Distance E: 60-350 mm
  • Overall Length L: 139-830 mm
  • Rot. Speed nmax: 1,500-8,400 1/min
  • Torque TKN: 170-130,000 Nm
Steel Disc Couplings TND HDV | RINGFEDER®

TND HDV

Standard Hub and Inverted Hub with Keyway, Double-Jointed, with Spacer

  • 9 Sizes
  • Max. Bore Diameter
    d1: 32-175 mm; d2: 25-120 mm
  • Max. Outer Diameter
    D1: 70.5-345 mm
  • Hub Distance E: 60-300 mm
  • Overall Length L: 105-526 mm
  • Rot. Speed nmax: 2,100-8,400 1/min
  • Torque TKN: 170-44,000 Nm
Steel Disc Couplings TND VDV | RINGFEDER®

TND VDV

Inverted Hubs with Keyway, Double-Jointed, with Spacer

  • 9 Sizes
  • Max. Bore Diameter
    d
    : 25-120 mm
  • Max. Outer Diameter
    D1: 70.5-345 mm
  • Hub Distance E: 60-300 mm
  • Overall Length L: 70-352 mm
  • Rot. Speed nmax: 2,100-8,400 1/min
  • Torque TKN: 170-44,000 Nm
Steel Disc Couplings TND OCO | RINGFEDER®

TND OCO

Standard Hubs with Open Flange, Double-Jointed, with Compact-Spacer

  • 4 Sizes
  • Max. Bore Diameter
    d: 32-65 mm
  • Max. Outer Diameter
    D1: 70.5-140.5 mm
  • Hub Distance E: 31.2-55 mm
  • Overall Length L: 110-175 mm
  • Rot. Speed nmax: 4,600-8,400 1/min
  • Torque TKN: 170-1,750 Nm
Steel Disc Couplings TND XSX | RINGFEDER®

TND XSX

Hubs with Shrink Discs, Single-Jointed, without Spacer

  • 7 Sizes
  • Bore Diameter
    d: 38-160 mm
  • Max. Outer Diameter
    D1: 116-345 mm
  • Hub Distance E: 10.5-32,5 mm
  • Overall Length L: 120.5-432.5 mm
  • Rot. Speed nmax: 2,100-3,600 1/min
  • Torque TKN: 750-44,000 Nm
Steel Disc Couplings TND XDX | RINGFEDER®

TND XDX

Hubs with Shrink Discs, Double-Jointed, with Spacer

  • 7 Sizes
  • Bore Diameter
    d
    : 38-160 mm
  • Max. Outer Diameter
    D1: 116-345 mm
  • Hub Distance E: 100-300 mm
  • Overall Length L: 210-700 mm
  • Rot. Speed nmax: 2,100-3,600 1/min
  • Torque TKN: 750-44,000 Nm
Steel Disc Couplings TND QCQ | RINGFEDER®

TND QCQ

Hubs with Open Flange and Shrink Discs, Double-Jointed, with Compact-Spacer

  • 2 Sizes
  • Bore Diameter
    d: 38-70 mm
  • Max. Outer Diameter
    D1: 116-145 mm
  • Hub Distance E: 46.5-55 mm
  • Overall Length L: 156.5-175 mm
  • Rot. Speed nmax: 3,600 1/min
  • Torque TKN: 750-1,750 Nm