Ringfeder Flange Couplings

Compact, robust Ringfeder TNF flange couplings deliver backlash-free shaft connections via friction locking. Easy install, high torque, no keyways.

Ringfeder Flange Coupling

Compact, highly robust and easy to assemble and maintain, Ringfeder TNF series flange couplings provide a backlash-free shaft connection using frictional locking. They offer a more efficient and cost-effective alternative to traditional press fits.

Installation is simple: flange halves are pushed onto shaft ends, secured with shrink discs, and joined with standard bolts – no keyway, wedges, or thermal fitting required.

These torsionally rigid couplings deliver high concentricity, accommodate large shaft tolerances, and transmit high torques as well as axial, radial and bending loads with precision and zero wear.

Typical applications include gearbox, engine, and plant construction, as well as belt drive systems used in mining operations.

The Ringfeder TNF 5571 Flange range offer high concentricity support large shaft tolerances, and efficiently transmit high torque along with axial, radial, and bending loads without wear or loss of precision. The TNF 5571 range are available in two versions:

  • Version A: Shrink discs with hexagon head screws (external or internal centering)
  • Version B: Shrink discs with hexagon socket screws (external or internal centering)

Features

  • Zero backlash, wear and maintenance
  • Robust connection with high strength reserves
  • Direct power transmission between shaft and flange
  • Highest concentricity
  • Easy mounting and dismounting
  • Shaft diameter dw up to 540 mm (21.259 inch)
  • Outer diameter A up to 1,200 mm (47.244 inch)
  • Torque range T up to 2,000,000 Nm (1,475,124.2 ft·lb)

Applications

  • Gearbox and Motor Engineering
  • Conveyor Systems (Belt Drives)
  • Mixing and Process Technology
  • Crushing Units
  • Hydro Power Technology
  • Elevators

Resources

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