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Fenaflex Tyre Couplings are highly elastic lubrication free couplings tolerate large amounts of misalignment in all planes as well as offering simple installation and inspection without disrupting the drive. The Fenaflex tyre coupling also has excellent shock absorbing properties while reducing vibration and torsional oscillations.
- Simple time saving installation – motor and machine remains undisturbed whilst tyre is changed.
- Large misalignment capability, 4° angular, up to 6mm parallel and 8mm axial.
- Very good shock absorption – couplings "wind-up" approx. 12° at maximum torque to absorb shocks in a system.
- Internal load carrying cords are wound in both directions, so there is no problem on reversing drives
- Complete freedom from backlash, ideal for reversing applications, especially with geared drives.
- Excellent at solving torsional vibration problems, as alternative stiffness tyres are available.
- Tyres are available in standard and FRAS (Fire Resistant Anti-Static) construction – so no static build up of electricity and fire resistant..
- Compact design with Taper Lock fixing and short length Taper Lock bushes.
- Larger T/L´s available on certain ´F´ flanges to increase maximum bore capacity.
- Also available in Spacer and Flywheel types
- Lubrication free shaft coupling.
- Visual inspection of tyre to detect wear – no machine strip down.
- All Tyres are produced in the UK – Improved availability and consistent high quality.
- Wide variation of flanges available: Taper Lock, Pilot Bored, Spacer etc.
- Design Powers to 900kW at 1440 rpm
Fenaflex couplings from the Fenner range, offer supreme flexibility and excellent torsional resilience. Here’s just a few reasons why these properties are invaluable across a wide range of applications. Eliminates destructive harmonic resonance Soldiers traditionally break step when marching over a bridge, to avoid the dangers of system resonance. In fact, every mechanical system has some frequency at which it will resonate – a "natural" frequency – and engines, or other reciprocating machinery, are no exception. And this can be a problem. If the frequency of vibrations from the engine matches the natural system (engine plus flywheel) frequency, or any multiple of it (a harmonic), the resulting state of resonance usually causes rapid destruction of the coupling and potential damage to the engine itself.Fenaflex couplings can eliminate this danger by "detuning" the system. This is achieved by first calculating the forcing and natural frequencies of the system, and – if there is any possibility of resonance using the default coupling stiffness – specifying an alternative element stiffness. Fenaflex flywheel elements are available with standard stiffness, and with torsional stiffnesses of 40%, 200% and 400%. Available with Spacer and Flywheel Variants But engines aren’t the only application where the Fenaflex coupling offers superb benefits. It’s available with spacer assemblies for centrifugal pump applications and is also specially configured to meet the ATEX regulations for explosive atmospheres. And then there’s the less well known, but equally useful, flywheel and high-speed variants. These both employ a "top hat" type rubber element, with one half identical to the conventional Fenaflex tyre, and the other side turned outward to form the "rim" of the top hat, enabling that side to be clamped to an engine flywheel or similar disc shape. This flexible element is not split, which enables it to be used with a specially designed shaft-mounted metal disc to form a high-speed version of Fenaflex. However the most popular use of this form of the product is for coupling machine shafts direct to engine flywheels to create, for example, a diesel generator set.