The characteristics of the Bird-Johnson and Kamewa range of FP propellers provide good fuel economy, low vibration/noise levels and no harmful cavitation. They are usually individually designed for the specific vessel, to deliver the optimum in propeller efficiency.
The Rolls-Royce SKF propeller sleeve
This propeller sleeve is a unique concept that simplifies propeller removal and mounting, provides full inter-changeability between operating propeller and spare propeller, and reduces the need for a spare propeller shaft. It offers considerable cost savings in terms of downtime, maintenance and repairs.
The SKF propeller sleeve also generates major savings by speeding up the installation process, eliminating match marking or gauges. The FPP is designed with either a taper shaft or SKF sleeve.
Complete FPP package
- Individual design
- Monoblock propellers of moderate or high-skew designs for both open and nozzle applications
- Shafting with stern tube, bearings, sealings, nozzle, etc.
- The SKF Propeller Sleeve
- Shaft calculations, such as whirling and alignment
- Performance guarantees
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Key features
- Five blades
- Optimised variable pitch distribution
- Non-linear blade skew of 18 degrees
- Advanced new technology blade sections
Product benefits
- Close to 50% reduction in ship hull vibrations due to propeller induced hull pressures
- About 50% reduction in ship machinery vibration levels due to propeller induced unsteady shaft forces
- Improved propeller efficiency
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Part of the Rolls-Royce product portfolio – New Generation Workwheels® – are available in five standard propeller designs specifically suited for workboats and manufactured in manganese bronze, NiAl-bronze and stainless steel.
Designed to outperform conventional three and four-bladed designs, New Generation Workwheels® apply state-of-the-art technology routinely used in the design of large commercial and naval propellers.
The improved performance is a result of the application of latest hydrodynamic design codes, which are applied in both design and off design operating conditions.
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Typical applications include:
- Tankers
- Cargo vessels
- Cruise ships
- Ferries
- Arctic vessels
- Various types of naval vessels
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