STAINLESS STEEL PROPELLER RUBEX NS3-D 13.3X17 LEFT

Function and technical context

The INOX Rubex NS3-D 13.3X17 propeller is the direct propulsion element that transforms the power of the engine into movement of the boat by rotating in reverse direction. This part works in the marine propulsion system, coupled to the engine output shaft, and is constantly subjected to mechanical stress, salt corrosion and cavitation erosion. The stainless steel of its construction guarantees resistance to oxidation in salty environments, preserving hydrodynamic efficiency and avoiding power loss due to material degradation. Significant propeller failure or wear causes reduced speed, excessive fuel consumption and abnormal vibrations in the drive shaft.

When to replace this part?

Symptoms of propeller wear include a gradual loss of revs at full throttle, unusual noises and vibrations at the stern, or the appearance of visible cracks and chips on the blades after impacts with submerged objects. It is recommended to inspect the propeller at the beginning of each sailing season and replace it if it presents structural damage, advanced corrosion or deformations that affect dynamic balance. Preventive replacement in case of minor damage prevents propeller fragments from breaking off and damaging the cooling system or propeller shaft, resulting in much more expensive repairs.

Equivalent manufacturer part numbers