Federal Marine Motors Inc, based in Saint Petersburg, FL, has been manufacturing and distributing Federal Flexible Couplings for over 65 years. Their couplings are designed to reduce noise, absorb vibration, and prevent electrolysis, while also protecting transmission thrust bearings and seals from stress and wear due to shaft misalignment.
With no metal to metal contact, these couplings prevent shaft rumble from reaching the engine and require no lubrication or maintenance. They allow for simple installation without shaft shortening or change of shaft location, and enable engine alignment without the need for special tools. The neoprene rubber trunnions used in their couplings transmit thrust and torsional loads, and can be easily and economically replaced in case of damage.
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