Stabilizer Model 254

Call 954-577-2850 or Send Enquiry for Pricing

For vessels from 55-85ft (16-26m)

The NAIAD Model 254 Fin Actuator Assembly is designed for efficiency, power and rugged reliability. It is supplied completely factory tested under pressure, assembled and ready for installation including all required hardware and fittings. Unlike other systems, no disassembly is required for installation. NAIAD Fin Actuator Assemblies are recognized the world over as the industry standard for excellence.

SKU: Stabilizer model 254 Category: Tag:


Standard Fin Sizes: 3 sq.ft. (0.28 sq.m), 4.5 sq.ft. (0.42 sq.m), 6.0 sq.ft. (0.56 sq.m), 7.5 sq.ft. (0.70 sq.m), 9.0 sq.ft. (0.84 sq.m).
Fin Attachment:  Precision machined oversized self-locking taper.
Main Shaft:  2.5 in. dia. (63.5 mm) heat-treated stainless steel.
Fin Actuator Housing Material:  High-strength ductile iron; 2.5 times stronger per square inch than aluminum.
Upper AND Lower Bearing: Heavy-duty tapered roller bearings by a leading manufacturer such as Timken (TM).
Lower Seal:  Two double-lip seals for maximum seawater protection. Easily accessible in a 316 stainless steel retainer.
Upper Seal:  Double-lip, spring-loaded seal for maximum grease retention. The double-lip design also provides protection of the fin actuator against external contaminants.
Lubrication:  Pre-packed with high quality Lubriplate (TM) water-resistant grease for lifetime maintenance-free service.
Hydraulic Connections:  SAE O-ring ports and (JIC) 37° fittings (not pipe fittings) for leak-free service.
Hydraulic Cylinder:  Custom engineered for NAIAD stabilizer applications in collaboration with a world leading cylinder manufacturer. Double acting. Steel body construction with high strength tie rods for heavy-duty service. Self-regulating shock reducing cushions.
Cylinder Mounting:  Head Trunnion mount allows most compact Fin Actuator design. Trunnion freely pivots in dual high capacity roller bearing assembly.
Maximum Working Pressure: 
Cylinder Bore Diameter:  2.00 in. (50.8 mm)
Rod Diameter:  1.00 in. (25.4 mm)
Rod End:  Spherical rod ends with a permanently bonded fabric liner for maximum wear protection.
Rod End Pins:  Through-hardened, ground and passivated stainless steel.
Torque Arm:  Cast and heat-treated high strength alloy steel, cadmium plated for corrosion resistance. Honed bore for precise Rod End Pin fit.
Shaft-Torque Arm Connection:  Oversized clamp-type spline for maximum torque capability.
Overall Weight: 
Overall Dimensions:  See dimensional drawing.
Fit & Finish Throughout:  High ‘yacht’ quality, painted, plated and polished.


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