Shaft Lines
Performance, reliability and durability of the propulsion system begin with a correctly designed shaft line.
BCS Marine develops complete shaft line systems designed to ensure maximum efficiency in power transmission and perfect integration between all components of the propulsion system.
Each solution is engineered according to the characteristics of the vessel and the expected operating conditions, combining engineering expertise, in-house production capabilities and consolidated experience in working with the main Classification Societies.
Propeller Shafts
Manufactured according to project specifications, BCS Marine propeller shafts are designed to ensure correct power transmission and maximum reliability of the entire shaft line.
Thanks to the use of stainless steel, Duplex and Super Duplex steels, and to the possibility of supplying certifications according to the main Classification Societies, our shafts are suitable for applications on yachts, commercial vessels, military units and workboats.
Main features
Length up to 15 m
Diameter up to 300 mm
Materials: AISI 630, AISI 316L, AISI XM-19, F51 and F55
Cast Brackets
Manufactured according to project specifications, BCS Marine cast shaft brackets are designed to ensure correct support of the propeller shaft and to maintain shaft line alignment over time.
Available in P-Bracket and A-Bracket configurations, they are produced in Naval Brass (G-OTS59) or Nickel Aluminium Bronze (NiBrAl) and supplied complete with water-lubricated bearings, bolts and backing plates for quick onboard installation.
Main features
P-Bracket and A-Bracket configurations
Naval Brass (G-OTS59) or Nickel Aluminium Bronze (NiBrAl)
Water-lubricated bearings installed
Complete supply ready for installation
Certifications available according to class requirements
Welded Brackets
Manufactured according to project specifications, BCS Marine welded shaft brackets are designed to ensure correct support of the propeller shaft and to maintain shaft line alignment over time.
Available in P-Bracket and A-Bracket configurations, they are developed for structural integration with the hull and manufactured in AISI 316L stainless steel, carbon steel or aluminium alloys. They can be supplied complete with water-lubricated bearings, bolts and accessories to facilitate installation operations.
Main features
P-Bracket and A-Bracket configurations
Designed for on-site welding
AISI 316L, carbon steels and aluminium alloys
Water-lubricated bearings installed
Complete supply ready for installation
Certifications available according to class requirements
Stern Tubes
BCS Marine stern tubes are designed to ensure correct support of the propeller shaft, system sealing and the maintenance of shaft line alignment throughout the entire operational life of the vessel.
Available in versions for resin bonding or welding, they are developed according to the construction characteristics of the hull and the specific requirements of the project. Designed for water-lubricated applications, they can be supplied in different dimensional configurations and complete with water-lubricated bearings, flanges, bolts and accessories for quick onboard integration.
Main features
Versions for resin bonding or welding
Short or long configurations
Manufactured in naval brass or stainless steel
Designed for water-lubricated systems
Water-lubricated bearings installed
Complete supply ready for installation
Available with certification from the main Classification Societies
Shaft Couplings
An integral part of the shaft line, BCS Marine shaft couplings are designed to ensure reliable and efficient transmission of drive torque, contributing to the performance and durability of the entire propulsion system.
Available with keyed or hydraulic coupling, they are manufactured in high-strength steels and sized according to the characteristics of the system and the application requirements.
Main features
Keyed or hydraulic coupling
High-strength steels
Sized according to project specifications
Suitable for high torque and power applications
Certifications available according to class requirements
Propeller Nuts and Fairing Cones
BCS Marine propeller nuts and fairing cones are designed to ensure correct fastening of the propeller to the shaft, guaranteeing a safe and reliable connection even in the most demanding operating conditions.
Manufactured in high-strength marine alloys and machined with high precision, they help preserve the integrity of the connection between shaft and propeller, ensuring long service life and corrosion protection. They can be supplied with or without integrated anode, according to the specific requirements of the system.
Main features
Propeller nuts and fairing cones for propeller fastening
Available with or without integrated anode
Manufactured in high-strength marine alloys
High-precision machining
Designed to ensure safe and long-lasting tightening
Available with certification from the main Classification Societies