View all newsletters
Receive our newsletter - data, insights and analysis delivered to you

KTR Kupplungstechnik

Marine Couplings

Email Address
Rodder Damm 170,
48432 Rheine,

KTR’s marine couplings are used worldwide and in various applications. These include main and auxiliary drives and every kind of deck equipment, such as ballast pumps, windlasses and high-load cranes.

Couplings for water jet drives

KTR offers couplings for water jet drives. Low draught, greater manoeuvrability, higher speed, reduced threat of injury, better machine protection (no damage to drives when getting dry), less vibration and smoother running are among the benefits of water jet drives.

Marine mechanical engineering coupling

KTR has a coupling solution suitable for multiple applications: the double-cardanic RADEX-N composite, a special type of the RADEX-N steel lamina coupling that has proven its importance in mechanical engineering. Its extremely stiff laminas made from stainless spring steel allow the coupling to compensate for high displacements with low restoring forces.

The RADEX-N composite coupling has a special feature: the CFK spacer. It bridges long distances between the driving shaft and impeller without any additional bearing.

KTR's marine couplings are used worldwide in main and auxiliary drives and deck equipment.<br/><br/><br/><br/><br/><br/><br/><br/><br/><br/>
KTR can supply couplings for tunnel thrusters.<br/><br/><br/><br/><br/><br/><br/><br/><br/><br/>
KTR marine couplings can be used for water jet drives, pumps, compressors, generators, hydraulic components, winches and cranes, deck equipment, azimuth drives and bow thrusters.<br/><br/><br/><br/><br/><br/><br/><br/><br/><br/>
Manuals for KTR marine couplings are available on CD.

Navigating, manoeuvring and tranversing couplings for bow thrusters

The majority of freight and passenger vessels as well as an increasing number of yachts are equipped with bow thrusters or transverse rudders for better manoeuvrability in harbours.

Transverse rudders are usually driven by a complex combination of electric motors and angular gears. The ROTEX couplings’ damping torsional vibrations have proven their worth on such applications.

Shock and vibration-dampening couplings

The ROTEX coupling is mounted accurately between motor and gearbox. Due to its short design it is quite easy to assemble and disassemble. It is also totally maintenance-free.

The ROTEX dampens all shocks and vibrations that result from the operation of the rudder. It also reliably compensates for axial, radial and angular displacements, which results in a longer service life for drive components.

Couplings for azimuth drives

For the propeller unit in the azimuth drive driven by an electric motor, the use of a ROTEX coupling in combination with a KTR-SI overload system is recommended. This combination protects the gearbox of the propeller unit against high-torque shocks and increases the service life of the drive system, especially if the steering unit collides with the seabed. An example of this is when the vessel is manoeuvring in shallow water.

Clamping sets

Using the CLAMPEX KTR 400 and 402 clamping sets will help keep your ship on course. These products have been developed, in particular, for high loads, high alternating torques and high torsional forces. The non-positive shaft-hub connection has been designed for large shaft diameters up to 400mm and is able to transmit much higher torques and axial forces than a positive-locking connection: on the sea up to 500.000Nm, on industrial applications on land even more.

Couplings for deck equipment

Loading containers, weighing the anchor, hoisting the draw nets, launching the lifeboats – wherever there is anything to move up or down on the sea, KTR couplings are involved. KTR’s marine couplings are found not only in various driving systems, but also on every type of deck equipment.

Shaft coupling for winches and cranes

The torsionally flexible ROTEX shaft coupling is used on deck winches and cranes. It is not only important to transmit the torques powerfully, but also to use them as a safety limitation, for example if a log gets caught in the winch or a draw net is caught on the seabed.

Couplings for hydraulic components

The ROTEX is also used in numerous electric power packs in marine hydraulics. Our BoWex coupling is proven on hydraulic power packs in combination with IC-engines, using the BoWex curved-tooth gear coupling as a highly flexible BoWex-ELASTIC or torsionally rigid BoWex FLE-PA flange coupling. Both couplings can be plugged in axially and are therefore easy to disassemble.

Couplings for marine pumps

KTR offers a large range of couplings for pumps used on marine vessels, such as the torsionally flexible jaw couplings ROTEX and POLY-NORM or the torsionally stiff steel lamina couplings RADEX-N and RIGIFLEX.

Couplings for marine compressors

On marine compressors, couplings should be compact in design and characterised by a high resistance to media and temperature. Here the torsionally flexible ROTEX or the highly flexible flange coupling BoWex-ELASTIC are good options.

Fail-safe couplings for generators

Sometimes a separate power source is required on board ship. This is not a problem with a powerful marine generator and a fail-safe coupling. ROTEX and BoWex-ELASTIC are again first choice: compact, flexible, transmitting high torques and damping vibrations.

KTR Kupplungstechnik Releases Free White Paper

KTR Kupplungstechnik a world-leading designer and manufacturer of marine couplings for the shipping industry, has released a free white paper on Ship Technology outlining the company's recent work on the world's largest mullti-purpose offshore vessel, Pieter Schelte.

28 May 2012

DNV Type-Approval Certificate for REVOLEX® KX and KX-D

The quality of KTR couplings and components is well-known throughout the world. To assure you that every process covering both development and customer service satisfies highest demands, we had ourselves certified, according to DIN EN ISO 9001, as one of the first companies in the field of drive

27 February 2011

ATEX Certificate for OAC Oil/Air Coolers

The purpose of the ATEX standard is to protect those who work in explosive areas. ATEX is the standard within the EU to which the manufacturers of machinery that is to be used in potentially explosive areas have to adhere. KTR has been awarded ATEX certification for its range of oil/air c

27 February 2011

Indian Office

KTR Couplings (India) Pvt Ltd.
T - 36 / 37 / 38, MIDC, Bhosari
411026 Pune

Belgian Office

KTR Benelux BV
Blancefloerlaan 167/22
2050 Antwerpen

Czech Republican Ofifce

KTR CR, spol sro
Olomoucká 226
569 43 Jevícko
Czech Republic

Brazilian Office

KTR do Brasil Ltda.
Rua Henrique Coelho Neto 381 / I Pinhais
PR CEP: 83321-030 Brasil

KTR Kupplungstechnik GmbH

Rodder Damm 170
48432 Rheine

Chinese Office

KTR Power Transmission Technology (Shanghai) Co Ltd
Floor 1 and 2, Bldg. B No. 1501 JinSui Road
201206 Pudong

Taiwanese Office

KTR Taiwan Ltd
1 F No 17 Industry 38 Road Taichung Industry Zone

UK Office

KTR Couplings Ltd.
Robert House Unit 7, Acorn Business Park
Sheffield, S8 0TB
Woodseats Close
United Kingdom

Dutch Office

KTR Benelux BV
Adam Smithstraat 37
7559 SW Hengelo

South Korean Office

KTR Korea Ltd
Adam Smithstraat 37
7559 SW Hengelo

Norwegian Office

KTR Kupplungstechnik Norge AS
Industriveien 21
2020 Skedsmokorset

Polish Office (Ozimek)

KS Konstrukcje Stalowe KTR Group Sp zoo
ul Kolejowa 1
46-040 Ozimek

Polish Office (Krakow)

KTR Polska
Ceglarska 21/20
30-362 Kraków

Russian Office

KTR Privodnaya technika, JSC
Sverdlovskaya Naberezhnaya 60, Office 112
195027 St Petersburg

Italian Office

KTR Kupplungstechnik GmbH
Sede senza rappresentanza stabile sul Territorio Nazionale
40033 Casalecchio di Reno BO
Via Fermi, 25

Finnish Office

KTR Finland Oy
Tiistinniityntie 2
02230 Espoo

French Office

KTR France
46-48 chemin de la Bruyère
69570 Dardilly

Japanese Office (Kobe-shi )

KTR Japan Co Ltd
3-1-23 Daikaidori
652-0803 Hyogo-ku Kobe-shi

Japanese Office (Tokyo)

KTR Japan Co Ltd.
1-11-6, Taito-Ku, Ueno Tokyo Takeno-building, 4F, Room B

US Office

KTR Corporation
122 Anchor Rd
Michigan City, IN
United States of America

Swedish Office

KTR Sverige AB
PO Box 742
191 27 Sollentuna

Swiss Office

KTR Kupplungstechnik AG
Bahnstrasse 60
8105 Regensdorf

Spanish Office

KR Kupplungstechnik GmbH
Paseo Landabarri 4 (Esc 2) - 4° / Dpto. 3°
48940 Leioa Vizcaya

NEWSLETTER Sign up Tick the boxes of the newsletters you would like to receive. The top stories of the day delivered to you every weekday. A weekly roundup of the latest news and analysis, sent every Friday. The industry's most comprehensive news and information delivered every month.
I consent to GlobalData UK Limited collecting my details provided via this form in accordance with the Privacy Policy


Thank you for subscribing to Ship Technology