Flexible Shaft Couplings

Name: Flexible Shaft Couplings
Brand: R&D Marine

R&D Marine flexible shaft couplings in polyester elastomer for marine engines of 5 to 1500 HP and 60-1400 lb-ft torque, with fail-safe drive, thrust acceptance and misalignment compensation.

Description

R&D Marine Flexible Shaft Couplings connect the marine gearbox output flange to the propeller shaft, isolating vibration and noise while accommodating misalignment from hull flexing or engine movement on flexible mounts.

Key features

Polyester elastomer flexible element resistant to saltwater, diesel and lubricating oils
Fail-safe design keeps the drive engaged if the flexible element fails
Accepts propeller thrust, so no separate thrust bearing is needed
Contoured flexible disc accommodates temporary misalignment between engine and shaft
Red cone-headed bolts allow simple periodic alignment checks
No machining required for installation

Configurations

Linear stiffness elements for general applications
High-deflection elements to combat gear noise and spline wear at low speeds
Hammerhead elements with three-stage stiffness for torsionally active applications
Wide range of engine/gearbox combinations, from standard to custom

Technical data

Engine power range: 5 to 1500 HP
Torque capacity: 60 to 1400 lb-ft

Selection

Coupling choice depends on engine horsepower, gearbox type and reduction ratio, and gearbox flange dimensions.

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