Free Delivery when you spend over £25 (ex VAT)£30 (inc VAT)Available for UK, Ireland and Scottish Islands deliveries on qualifying orders. Ends 03/02/23.
Part No: 807120
Flexible coupling for boat propeller shaft.Manufactured by R&D Marine, the flexible coupling fits between the boat propeller shaft coupling and the gearbox output coupling. This flexible coupling... Read more
Flexible coupling for boat propeller shaft.
Manufactured by R&D Marine, the flexible coupling fits between the boat propeller shaft coupling and the gearbox output coupling. This flexible coupling consists of a contoured flexible disc moulded in tough yet resilient new type Polyester Elastomer. The contoured coupling disc gives clearance for bolt heads, and allows the coupling to flex freely to take up any temporary misalignment of the engine and propeller shaft, due to flexing of the boat structure or the engine moving on its rubber engine mountings. Forward thrust is taken in compression on the coupling disc between the two shaft half couplings and reverse thrust is taken again in compression on the coupling disc between the two fail safe straps. A safety feature of the R&D 910 series flexible couplings is that in the unlikely event of a coupling disc failure, the steel straps make the coupling fail safe and ensure propeller shaft drive is maintained in both forward and reverse.
Gearbox Flange Dimensions
- Diameter: 101.6mm (4.00")
- Number of gearbox flange bolts: 4
- Coupling bolt hole nominal diameter: 10mm (0.39")
- Bolt PCD: 80mm (3.15")
- Coupling register diameter: 60mm (2.36")
Flexible Coupling Details
- Coupling maximum diameter: 114.3mm (4.5")
- Length: 32.5mm (1.28")
- Bolt diameter: M10
- Capacity per 100 rpm: 3.73kW 5HP
- Typical applications: Volvo Penta MS2, MS10, MS15 MS25 gearboxes with 4" coupling
- Electrical properties: Flexible couplings are as standard non-conducting
- Earth bonding strip: 807737
|Application||Volvo Penta MS2, MS10, MS15, MS25 gearboxes with 4" coupling|
|Capacity||5HP (3.73KW) Per 100 RPM|
|Coupling PCD||3.15" / 80mm|
|Coupling Register Diameter||2.36" / 60mm|
|Gearbox Output Coupling Diameter||4.00" / 101.6mm|
|Number of Fixing Bolts||4|
|Country of Origin||United Kingdom|
Sign up for the latest offers, product news, technical advice and more.