Marine Link
Monday, April 20, 2026

Stern Tube News

27 Mar 2026

Thordon Bearings Appoints Engineering Leads

Anthony Hamilton courtesy of Thordon Bearings

Thordon Bearings has announced two significant appointments which reinforce its commitment to meet growing demand for high performance, pollution-free seawater-lubricated bearings and seals in commercial shipping.Anthony Hamilton has been appointed VP of Engineering and Product Development of Thomson-Gordon Group (TGG), the parent company of Thordon Bearings, with a mission to leverage group-wide capabilities in growing its merchant marine business.Based in Burlington, Ontario, Canada, Hamilton has led TGG’s engineering and new product development as Technical Director since 2021.

05 Mar 2025

Castrol BioStat ST, a New Stern Tube Lubricant

Castrol launches Castrol BioStat ST for use in stern tubes, CPP systems and stabilizers. Credit: Adobe Stock/walterericsy

Castrol launched a new stern tube oil range, Castrol BioStat ST, for use in stern tubes, CPP systems and stabilizers. It is based on selected synthetic esters and an optimized performance additive system. The lubricant has been specifically designed to provide a good level of lubrication and corrosion protection, good oxidation performance and hydrolytic stability.Castrol BioStat ST is an Environmentally Acceptable Lubricant (EAL) that has been developed and tested to comply with the US Environmental Protection Agency Vessel Incidental Discharges Act (VIDA) 2018…

08 Jun 2022

ABS AIP for "Sterntube-less" Ship

A sterntube-less ship features a shorter shaft with the prime mover further aft the vessel. Image courtesy Thordon Bearings

Thordon Bearings said ABS issued an Approval in Principle to the “sterntube-less ship” concept developed in cooperation with the Shanghai Merchant Ship Design & Research Institute (SDARI), the National Technical University of Athens (NTUA) and Thordon Bearings Inc.The design replaces a vessel’s sterntube with an irregular shaped chamber that allows a shorter, water-lubricated propeller shaft to be inspected and maintained while the vessel is afloat, without having to withdraw…