Shafts and Propellers

Technology group Wärtsilä, the Netherlands based Maritime Research Institute MARIN and Italian ship owner Grimaldi, have together successfully designed an Energy Saving Device (ESD) for use by ships with Controllable Pitch Propellers…

As the tenth anniversary of the introduction of Becker Mewis Duct® approaches, Becker Marine Systems is preparing to celebrate the success of its closed duct type product.

German manufacturer of marine propulsion systems, Schottel, is introducing a new nozzle type SDC 40, a compact design which offers superior free running efficiency, and will lower operating costs compared with existing…

Russian Far East shipyard Zvezda is planning to issue a tender for 6m diameter screw propellers for 15 LNG carriers in the third quarter of 2019, after the original local Russian supplier,…

AEGIR-Marine PRIME stern tube seal assembly has received Class NK Type Approval. The brand-independent service provider in The Netherlands began offering its newly certified seal assembly to customers worldwide immediately. The Type…

Wärtsilä is to overhaul its light weight modular waterjet range, introducing a new axial pump design, which will boost performance by increasing thrust by as much as 3%. The upgraded design also…

A revolutionary new technology capable of substantially reducing the underwater radiated noise (URN) has been developed by Strathclyde University and Oscar Propulsion, a UK-based innovation and technology transfer company.

Netherlands-based Damen Marine Components (DMC) has signed its first order with a Turkish shipyard to supply steering equipment for a fishing trawler.

A Russian shipyard hopes to promote a variable-pitch propeller system to civilian customers, taking advantage of technology developed for the Russian navy.

Thordon Bearings has completed a range of water-lubricated and grease-free bearing installations to a third salt lugger in the Salinor/Navenor fleet, following the successful retrofitting of bearings to problematic newbuilds.

Sharrow Engineering has completed the final phase of testing on its high efficiency propeller, which offers ship operators 9-15% more efficiency than the industry standard and reduces fuel costs.

Investment in cutting edge design tools are helping Teignbridge Propellers in its investigation into efficient propulsion systems as part of a UK-funded project.

WE Tech Solutions has supplied its energy efficient Solution One (Economic Operation Solution) together with direct drive permanent magnet shaft generator to Vulica Shipping’s two 68000dwt self-unloader bulk carriers.

A new joint industry project aims to seek out improved methods for propeller inspection and metrology.

Class society DNV GL has revised class rules for single shaft bearing installations and introduced two shaft alignment notations in the wake of a reported upsurge in stern tube bearing failures.

Mitsubishi Heavy Industries and Wärtsilä are to jointly market a new energy solution that deploys both waste heat recovery (WHRS) and power take-off/in (PTO/PTI).

Thordon Bearings has received another order from a Chinese shipyard which it says indicates more of the country’s shipbuilders are specifying water lubricated propeller shafting arrangements as standard.