Poly Flex Couplings — Marine Couplings
Australian-made engine mounts, flexible couplings and drive plates — manufactured in Brisbane since 1981 and exported worldwide. Stocked by Luxfords.
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Mount & coupling selector
Load-window maths for mounts, shaft lookup for couplings
OpenEngine mounts & couplings hub
The full driveline range — mounts, couplings, drive plates
OpenEngine alignment guide
The adjustment sequence and the feeler-gauge rule
OpenDamper drive plates
Why gearboxes rattle at idle and how to identify a plate
OpenAbout Poly Flex Couplings
Poly Flex Group is an Australian manufacturer of engine mounting systems, flexible disc couplings and steel shaft couplings, building everything in-house in Brisbane since 1981 — the business began when founder Brian Gagen needed a coupling for his own boat and, finding nothing suitable, made one. Today the company states a range of more than 1,700 engine mount models supporting from 2 kg to 2,000 kg per mount, with DNV Type Approval certification, serving marine, mining, defence, agricultural and industrial customers under the tagline 'Manufactured in Australia, Exported to the World'.
The marine range centres on adjustable propulsion mounting systems for high thrust-load installations, genset mounting systems, general-purpose isolation mounts and hull-to-deck joining systems, alongside flexible disc couplings and steel half couplings for engines from small auxiliaries to 1500+ hp. Poly Flex builds its mounts from heat-cured polymer alloys — lightweight, oil and fuel resistant, with high stretch for shock absorption — with corrosion-protected metalwork, engineered for controlled thrust and lateral deflection under propulsion load. A rudder bearing system of upper and lower bearings joined by an epoxy tube rounds out the range.
Luxfords stocks and supplies Poly Flex mounting systems, couplings and drive plates, and can match a Poly Flex solution where standard European mount ranges run out of load window — from trailerable boats to heavy commercial installations. Send the engine and gearbox details, or the old mount's dimensions, and the team will identify the right system for new builds, replacements and repowers.