R & D Marine - Flexible Shaft Coupling - for 5" B/W, Hurth, & Volvo, 25HP/100RPM Capacity

Enhance Your Marine Engine with R & D Flexible Shaft Coupling

Introducing the R & D Flexible Shaft Coupling for 5" B/W, Hurth, & Volvo - 25HP/100RPM Capacity, a revolutionary marine product designed to significantly reduce engine noise, transmission vibration, and the risk of costly transmission repairs. Crafted with precision, this coupling is machined from a polyester elastomer, ensuring it's impervious to harsh marine environments including saltwater, diesel, and lubrication oils. Its unique design not only accommodates normal shaft tolerances but also provides a fail-safe mechanism in the event of severe impacts, maintaining drive in both forward and reverse operations.

• Machined for precision, offering tighter tolerance than molded parts
• Reduces engine noise and transmission vibration, enhancing onboard comfort
• Absorbs shock loads, protecting against hard gear changes and impacts
• Fail-safe design ensures continued operation even after severe impacts
• Compatible with a wide range of major transmissions for engines up to 1,500 horsepower
• Quick and easy installation with no machining required

Unmatched Durability and Performance

The R & D Marine Flexible Coupling distinguishes itself with its durability and performance. Designed to flex freely, it compensates for temporary misalignment of the engine and shaft, ensuring optimal performance under varying conditions. Its forward and reverse thrust compression capability, coupled with a fail-safe steel strap design, guarantees that your drivetrain remains intact, secure, and operational even under the most challenging circumstances.

Specifications for Precision Fit

• Designed for 5" B/W, Hurth, Volvo transmissions
• Dimensions: Diameter: 5.63 inches / 143 mm, Length: 2.06 inches / 52.4 mm
• 4 bolts with a 7/16 UNF diameter and a pitch circle of 4.25 inches / 107.9 mm
• 25HP/100RPM capacity, accommodating engines up to 1,500 horsepower

Effortless Installation, Lasting Peace of Mind

With the R & D Flexible Shaft Coupling, installation is straightforward and requires no additional machining, coming supplied with all necessary bolts. Its design not only facilitates easy alignment checks post-installation but also significantly reduces installation time. By choosing this coupling, you're not just enhancing your marine engine's performance; you're investing in peace of mind, knowing your drivetrain is protected against unexpected failures and harsh marine conditions.

A New Era of Marine Engine Efficiency

Step into a new era of marine engine efficiency and reliability with the R & D Flexible Shaft Coupling. Its innovative design and superior materials set a new standard for marine engine couplings, offering unmatched protection, performance, and ease of use. Whether you're cruising calm waters or navigating rough seas, trust R & D to keep your marine adventure on course.

Shipping
We ship worldwide from the United States. Rates are calculated at checkout based on destination and package weight. Some items include free shipping, which will show automatically. Not every product is eligible for international shipping; checkout will confirm eligibility. We do not ship to PO Boxes except through USPS, and not all packages qualify.

Processing and dispatch
Most orders are verified, packed, and handed to the carrier within 1 to 2 business days. Some products may need extra handling time or ship directly from the manufacturer. For certain international orders, inventory transfers between warehouses may add time. If any delay is expected, we will let you know the dispatch date.

Delivery and tracking
Deliveries are handled by trusted carriers such as USPS, UPS, FedEx, and DHL. Estimated arrival times appear at checkout and depend on your location and the service you choose. These are estimates and can be affected by customs or carrier disruptions. A shipping confirmation with a tracking link is emailed when your order ships, and tracking may take up to 24 hours to update. You can also view tracking in your account.

Duties, taxes, and support
International customers are responsible for any customs duties, taxes, and fees charged by the destination country. If these charges are refused and a shipment returns to us, the carrier’s return cost and any re-entry customs fees will be deducted from the refund. If your order is late or you need help, contact cs@qualityboatparts.com and we will assist you.

Quality Boat Parts is a reseller. Many items include a manufacturer’s warranty, and all warranty service is handled directly by the manufacturer. We do not manage or administer warranty claims on behalf of customers.

Warranty terms, coverage, and duration are set by each manufacturer. Issues involving defects, repairs, or replacements must be addressed with the manufacturer’s support team. When available, the warranty period is listed on the product page. If it is not shown, contact us or the manufacturer for details before purchasing.

To start a claim, the customer must contact the manufacturer and follow their process. Keep your proof of purchase and original packaging, and register the product if the manufacturer requires it, as these are often needed for warranty service.

We are happy to help you find the right contact or documentation, but we cannot decide outcomes or intervene in claim resolutions. For guidance, email cs@qualityboatparts.com.