STAINLESS STEEL PROPELLER RUBEX NS3-E 14.5X15 RIGHT

Function and technical context

The Rubex NS3-E 14.5×15 INOX propeller is the propulsion element responsible for transforming the mechanical power of the outboard or inboard motor into direct hydraulic thrust. It works in the propulsion system, where its blades interact with the water to generate movement and displacement of the boat. The 15-inch fixed pitch and 14.5-inch bore are calibrated for medium-displacement engines, offering a balance between initial acceleration and sustained cruising speed. Stainless steel construction is critical in saline marine environments as it prevents corrosion that would degrade hydrodynamic performance and reduce propeller life.

When to replace this part?

Symptoms such as abnormal vibrations in the steering, loss of maximum sustained speed, audible cavitation (bubbling sound under load) or visible dents, cracks or material detachments on the blades indicate wear or damage to the propeller. It is recommended to check the condition of the propeller at the beginning of each navigation season and after impacts with submerged objects, since even small deformations affect alignment and efficiency. Preventive replacement of the propeller when persistent surface corrosion or deformation is observed avoids costly repairs to the drive shaft and extension.

Engine Compatibility

Engine Compatibility

Equivalent manufacturer part numbers