The R & D Marine Flexible Shaft Coupling is designed to protect a boat's drivetrain by reducing noise and vibration. This coupling fits between the transmission output flange and the shaft coupling, helping to compensate for temporary misalignment caused by boat structure flexing or engine movement on vibration isolation mounts.
Constructed with a resilient, contoured polyurethane disc and backed by two steel compression straps, this coupling provides a fail-safe design that maintains drive in both forward and reverse. The polyurethane disc acts as a shock absorber for gear changes or propeller impact, protecting the transmission from costly damage.
- Fits 4 in. B/W and Hurth transmissions
- Capacity: 5 HP per 100 RPM
- Reduces drivetrain noise and vibration
- Absorbs transmission shock loads
- Fail-safe design with steel compression straps
- Model number: 910-001
Calculating Required Coupling Power: To determine the correct coupling for your engine, use the following formula: (Engine Horse Power / Engine RPM) x Reduction Ratio x 100 = HP per 100 RPM.
Product facts
- CT SKU
- CT-103642
- Model / MPN
- 910-001
- UPC / GTIN
- 839662003735
- Package dimensions
- 4" X 8" X 8"
- Package weight
- 2.45 lb
Fit-sensitive item: confirm measurements, model numbers, and manufacturer details before ordering. Tug & Tow does not guarantee universal compatibility from a product page alone.
Shipping & returns
Shipping & returns
Shipping methods, delivery estimates, and final costs appear at checkout before payment. Some bulky, supplier-shipped, or special-handling items may ship separately. See Shipping & Returns for return windows and eligibility.
Fit & compatibility
Fit & compatibility
Review the product title, description, images, dimensions, part numbers, and manufacturer details before purchase. For fit-sensitive items, confirm compatibility with your boat, RV, trailer, vehicle, or equipment.
Need help choosing?
Need help choosing?
Send us the product link or SKU, plus details about your boat, RV, trailer, vehicle, or project. We will help you narrow down the right option when product fit is not obvious.
