RADEX®-N is a backlash-free, torsionally rigid and maintenance free all-steel laminae coupling. The laminae packings of the RADEX®-N are supplied “artificially” pre-stressed from high-strength, stainless spring steel. Utilising FEM (Fininte Element Measurement) calculations, the laminae have been designed to compensate for high displacements yet maintain a high torsional rigidity with low restoring forces.
At the “heart“ of the steel laminae coupling are the laminae packings and their connection to the hubs or spacers. High-strength, special dowel screws are alternately positioned between hub and spacer to enable a combination of frictional engagement and positive locking. Thus a high power density with simultaneous easy displacement and low restoring forces is guaranteed.
With a similar all-steel laminae design, RIGIFLEX®-N was developed for pump drives in particular and correspond to the regulations of API 610 and API 671 optionally (API = American Petroleum Institute).
Both RADEX®-N and RIGIFLEX®-N cover torques from 60 Nm to 280.000 Nm are covered in 23 sizes for an optimum adjustment to different applications. Torques of 330,000+ Nm are possible in our RIGIFLEX® HP (High Power) design for high speed applications such as compressors and turbines.
ATEX Explosion-Proof Use
RADEX®-N & RIGIFLEX®-N are both suitable for power transmission in drives used in hazardous areas – certified according to EC standard 94/9/EC (ATEX95) as units of category 2G/2D, for use in hazardous zone areas 1, 2, 21 and 22. The all-steel design also allow for use in drives with temperatures of up to 280 °C.
With a presence in Bahrain KTR Couplings can offer a technical design support and maintenance support services. This means we can offer a level of service for replacement parts and design support that our competitors cannot. In fact, KTR has a truly international reach from which to support your business – 24 dedicated global subsidiary offices and a sales presence in over 60 countries worldwide. This is another reason why international businesses choose KTR Couplings.
At KTR Couplings we understand that component failure costs far more than the value of the component replacement. Some failures can lead to protracted system down-time that causes a significant loss to the business. So overall the cost of the component is a very small consideration and the use of more expensive components which provide higher performance, improved reliability and longer life can in fact save your business money.
Bow thrusters, rear rudders and transverse rudders require couplings, that dampen torsional vibrations, such as ROTEX®. This type of coupling functions without any maintenance, and ROTEX® compensates for axial, radial and angular displacements, increasing the service life of the entire drive system. Its damping effect can be controlled by the Shore hardness of the elastomer spider.
Our couplings offer:
KTR also offers arrange of marine OAC coolers featuring IP56 motors. These marine OACs are treated with a KTL corrosion resistant coating to combat the effects of working in a saltwater environment common to on-deck and other marine applications.
KTR offer range of flexible and torsionally stiff couplings well to handling misalignment and vibration involved in pump and compressor applications. Steel laminae couplings, RADEX® and RIGIFLEX®, work well in difficult ambient conditions and can also be supplied with highly stiff glass or carbon fibre spacers for bridging large shaft distances. KTR’s RIGIFLEX® couplings also correspond to API 610 and 671 regulations, and are ATEX certified. The new RIGIFLEX® HP (high power) design has been specifically developed to work at high speeds (up to 13,000 rpm) with applications such as turbo compressors and the compression or liquefaction of natural gas.
KTR can also offer large pin & bush coupling REVOLEX® for pump applications if requested.
KTR’s GEARex® and REVOLEX® couplings have your high power applications covered (1,050,000 and 488,000 Ton respectively) – including aluminium smelting plants, steel rolling mills, cement plants and various mining applications. KTR’s GEARexÂ couplings feature small dimensions and yet a high power density and are in accordance with AGMA standards (American Gear Manufacturers Association).
KTR offer range of flexible and torsionally stiff couplings well to handling misalignment and vibration involved in pump and compressor applications. Steel laminae couplings, RADEX® and RIGIFLEX®, work well in difficult ambient conditions and can also be supplied with highly stiff glass or carbon fibre spacers for bridging large shaft distances. KTR’s RIGIFLEX® couplings also correspond to API 610 and 671 regulations, and are ATEX certified.
ROTEX and BoWex deliver increased flexibility to handle greater misalignment and vibrations associated with more standard pump applications and systems. Split hub designs, in both ROTEX® and BoWex® ranges, offer an easier assembly which can mean reduced down times and maintenance costs.