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RINGFEDER TNM Elastic Couplings

RINGFEDER TNM elastic couplings (formerly TSCHAN NORMEX) are torsionally flexible, puncture-proof couplings with claw rings and a rubber element. The scoupling transmit torque via pre-compressed, elastic buffers connected to one another into an intermediate ring. The elastic intermediate ring can absorb shocks and torsional vibrations, is oil resistant and electrically conductive.

The coupling can be used in any direction of rotation and each installation position.

RINGFEDER TNM Complete Couplings - Preview

Full Sets

Complete RINGFEDER TNM couplings of various sizes (2 hubs + elastic element)
Types: E and G
RINGFEDER TNM Elastic Elements - Preview

Elastic Elements

Spare parts for RINGFEDER TNM couplings of various sizes

Couplings Construction

RINGFEDER TNM Coupling Construction

  1. Left hub
  2. Right hub
  3. Elastic element (ring)

Couplings Fields of Use

RINGFEDER TNM (formerly TSCHAN NORMEX) elastic couplings are designed for the highest requirements in a wide range of industries, especially for compressors, pumps, conveyors and many other machines.

Robust design and excellent damping properties guarantee users maximum operational reliability, especially in applications with significant shock, alternate or vibration loads.

Couplings Characteristics

  • Compensates for angular, parallel and axial shaft misalignments of the connected machines
  • Elastic elements of two different Shore hardness are available
  • Elastic elements operate in temperature ranges of −30 °C to +100 °C
  • Replacement of elastic elements without axial movement of the coupled machines (principle of the multi-part design)
  • Max. finished bore - 280 mm
  • Nominal torque of coupling TKn = 41,000 Nm / TKmax = 97,500 Nm
  • Operating speed to nmax = 5000 1/min

Documents for Download

TNM Elastomer Jaw Couplings - Preview

TNM Elastomer Jaw Couplings


English (PDF 2.55 MB)

Shaft Coupling Manufacturer Profile


RINGFEDER POWER TRANSMISSION GMBH is the international leader in niche markets for drive and damping technology. The company offers their users worldwide outstanding locking devices, damping solutions and coupling systems for the highest functionality and durability requirements in a wide variety of industries.

They not only provide their customers with expert advice based on almost 100 years of experience and expertise, but also develop innovative, tailor-made solutions together with them. Subsidiaries in Germany, the USA, Brazil, China and India as well as a worldwide service and partner network contribute to the global success of the company.

TYMA CZ is an authorized regional distributor of RINGFEDER.

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