R & D Marine 910-057 R & D Flexible Shaft Coupling - 25HP/100RPM, Fits Volvo & More

R & D Flexible Shaft Coupling - 25HP/100RPM Capacity

The R & D Marine Flexible Coupling is engineered to accommodate 5" B/W engines from brands like Hurth and Volvo. It features a specially molded flexible disc made from polyester elastomer, designed to allow for free movement and compensate for misalignment caused by engine or shaft flexing due to boat structure variations.

Even Under Load: The coupling effectively transmits forward and reverse thrust while maintaining balance, ensuring consistency and reliability even during severe impacts, thanks to its fail-safe steel strap design.

Reduce Noise and Vibration: The staggered bolt setup helps isolate vibrations, which reduces both engine noise and transmission vibrations for a smoother boating experience.

Cost-Efficient Maintenance: It minimizes shock loads from gear changes, which helps in reducing the frequency of costly transmission repairs.

Compatibility: This coupling fits a wide range of engines, covering 5 to 1,500 horsepower from esteemed brands including Borg Warner, ZF-Hurth, Twin Disc, Volvo, Yanmar, Technodrive, and others.

Simple Installation: The flexible coupling is designed for quick and easy installation without the need for machining; all essential bolts are provided for mounting to existing shaft flanges.

Robust and Durable: This coupling is impervious to saltwater, diesel, and lubricating oils, made specifically from materials resistant to everyday marine conditions.

Precision Engineering: Unlike molded alternatives, the R & D Flexible Shaft Coupling is machined for tighter tolerances and better performance.

Checking Alignment: After installation, alignment can be efficiently verified using a feeler gauge with a designated red-painted bolt head, ensuring optimal engine alignment.

Power Requirement Calculation:

Horse Power of Engine x Reduction Ratio x 100 = HP/100RPM
Example computation for Ford 150 HP at 2500 RPM with Borg Warner Velvet Drive 72C 2:1 Reduction Ratio results in 12 HP per 100RPM.