0 - 1,350,000 Nm

REVOLEX® KX-D flexible coupling made of steel

Pin & bush coupling for customized special dimensions

The flexible coupling REVOLEX® KX-D made of steel is a fail-safe pin & bush coupling.

The REVOLEX® pin & bush coupling made of steel is suitable for a circumferential speed up to 60 m/s. As an example, directly driven industrial fans require high speeds in addition to high performance.
Standard shaft-hub-connections are feather key connections. In addition the hub material steel enables oil press fits as well as combinations with CLAMPEX internal clamping sets and external clamping sets.

The REVOLEX made of steel can be realised with customized special dimensions, we are free to define diameter and length.
Furthermore there is the option to use special steels. As an example, pin & bush couplings made of high-strength steel like 42CrMo4 or steel with special noth impact strength for low temperature applications (oil rigs, arctic belt drives) have been implemented. In addition steels with 3.1 + 3.2 acc. to DIN EN 10204 for maritime applications have been realised which are used, for example, in bow thrusters (thrusters) of large cruise liners.

Pin & bush couplings available from stock
The REVOLEX® KX-D pin & bush coupling made of steel is available from stock in sizes 75 to 330 as a pilot bored version, special dimensions in diameter and length are available.

  • Torsionally flexible, fail-safe pin & bush coupling / shaft coupling
  • maintenance-free
  • Pins radially mountable/dismountable
  • Machined allover, good dynamic properties
  • Hub material steel for high loads and speeds
  • Torques from 4,300 to 1,350,000 Nm
  • Available from stock in sizes 75 to 330
  • Special dimensions in diameter and length available
  • Special steels available, e. g. high-strength, for low temperature applications or maritime applications
  • Relatively short shaft distance
  • Compensation of axial, radial and angular displacements
  • Complying with ATEX (acc. to EU directive 2014/34/EU)
  • UKEX compliant (according to UKEX Directive SI 2016:1107)
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Safe torque transmission via the REVOLEX pin & bush coupling

REVOLEX® are torsionally flexible, fail-safe pin & bush couplings that are mainly used in applications with high torques and drives subjected to shocks. They are specifically solid, fail-safe, compensate for any kind of shaft displacement while transmitting the torque reliably.
The REVOLEX pin & bush couplings can be plugged in axially and are characterized by short dimensions. These pin & bush couplings are generally equipped with hydraulically dismountable pins which means that special tools are not required for disassembly. The coupling components of the REVOLEX® pin & bush couplings are maintenance-free and allow for a smooth disassembly of elastomer rings along with pins in mounted condition.

REVOLEX® pin & bush couplings are usually provided with 80 ShA NBR elastomer rings with the standard material being a true all-rounder. NR elastomers are available for low temperature applications. Apart from that backlash-free, electrically insulating NBR elastomers (coloured in blue) are available which are mainly used in cableway drives.

Small pin & bush couplings are relatively expensive with the REVOLEX commencing from a rated coupling torque of 4,300 Nm. The product ranges ROTEX and POLY-NORM are available for low performance ranges.

The pin & bush coupling is made up of two hubs identical in design. Pins and pocket holes alternate on the outside pitch circle of the hubs. The torques are transmitted via the steel pins with taper elastomer rings and the respective bores of the sleeve hub.

Any kind of shaft displacement, e. g. generated by inaccurate alignment of driving or driven elements, is reliably offset and vibrations as well as torque shocks are excellently compensated.
The pin & bush coupling is maintenance-free and used in general engineering as well as pump industry, conveyor technology, etc. Torques up to 1,220,000 Nm are available in 21 sizes for an optimum adaptation to the respective application. As a result customized solutions are available along with the standard product range.

REVOLEX KX-D holds the maritime type approval such as BV Bureau Veritas; ABS American Bureau of Shipping; DNV.GL Desk Nord Veritas. With maritime applications there are special demands acc. to EN 10204 (3.2) on hub bodies and pins.

Applications of our REVOLEX pin & bush couplings: REVOLEX pin & bush couplings are mainly used in safety-relevant applications, drives subjected to shocks with severely high speeds, e. g. marine technology, conveyor technology, chemistry parks, biogas plants, etc. The pin & bush couplings have a fail-safe design operating reliably with rated torques from 3,800 to 1,220,000 Nm.

Our flexible pin & bush couplings REVOLEX®:

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