Cleveland Cascades LtdSailors SocietyViganTBA GroupMultimodal 2022Port of South Louisiana
  • Vigan
  • Port of South Louisiana
  • Sailors Society
  • Telestack
  • Van Aalst
  • The Wolfson Centre for Bulk Solids Handling Technology

Newest U.S flagged Lakes bulker operation with Thordon RiverTough bearing

Newest U.S flagged Lakes bulker operation with Thordon RiverTough bearing

(Posted on 12/08/22)

Mark W. Barker, the first new U.S flagged Great Lakes bulker in almost 40 years, has successfully completed sea trials and will now begin trading throughout the freshwater lakes and river networks with oil-free propeller shaft bearings from Thordon Bearings.

Built in Sturgeon Bay, Wisconsin, by Fincantieri Bay Shipbuilding for The Interlake Steamship Company, Thordon’s scope of supply includes a water lubricated RiverTough bearing, Nickel-Chromium-Boron (NCB) alloy liner for a propeller shaft diameter of 445mm (17.5in), and two Thordon Water Quality Packages. Thordon’s authorized distributor in Ohio, Advanced Sealing Technology, worked with the ship owner to get the RiverTough package specified.

Designed to transport salt, iron ore, stone, and other bulk cargoes throughout some of the narrowest rivers in North America’s Great Lakes region, including the tight bends of the Cuyahoga River, the single screw Mark W. Barker is the 6th Interlake Steamship vessel that Thordon’s proprietary polymer bearings have been installed.

“Interlake has had a lot of success with our propeller shaft bearings,” said Jason Perry, Thordon’s Regional Manager, North America. “Their vessels operate in some of the region’s narrowest, shallowest waterways which means vessels are unable to turn and instead must reverse using bow and tunnel thrusters. When operating at lower shaft speeds, the RiverTough polymer formulation reduces friction and bearing wear. The material can also withstand operations in highly abrasive, very sandy environments.”

Wear rates for RiverTough are typically less than half that of rubber bearings based on ship owner feedback. Offering increased resilience, easier shaft alignment and less edge loading, lubricants in the polymer material reduce friction levels during nearly-dry starts, significantly eliminating stick-slip and vibration at low shaft speeds. Results from shipowners have shown wear rates of 0.075mm to 0.100mm (0.003in to 0.004in) in 6000 to 7000 hours of annual use.

Commenting on Interlake’s long-term relationship with Thordon, Ian Sharp, Interlake’s Director of Fleet Projects, said: “From the outset, Thordon always responds quickly to our requirements with its bearing expertise, technical know-how and customer service. Having multiple RiverTough bearings in operation with proven reliability made it a very simple decision to choose the same Thordon bearing for our new ship.”

With a hull optimized for energy efficiency the 28,000dwt River-class bulker is powered by a pair of 400HP main engines driving a single controllable pitch propeller through twin-input, single out-put reduction gearbox. It is the first ship to operate on the Great Lakes with engines that meet EPA Tier 4 emissions standards.

EPA Tier 4 standards entered into force in January 2017, requiring marine engines rated at 600kW and above to be fitted with technologies capable of significantly reducing nitrogen oxide (NOx), sulphur dioxide (SOx) and particulate matter (PM).

Craig Carter, Vice President Business Development added: "Mark W. Barker is truly a milestone ship for Interlake and we are proud to be associated with what is arguably one of the most advanced, energy efficient self-unloading bulkers to operate on the Great Lakes.

“Our relationship with Interlake Steamship and Bay Shipbuilding dates back to 1998 when we installed propeller shaft bearings to the 25,000dwt Kaye E. Barker. Since then, we have enjoyed a very productive, collaborative relationship with both owner and yard and look forward to working together on future projects.”

Latest News

SAFEEN strategic agreement to own and operate five bulkers

(Posted on 01/10/22)

SAFEEN Feeders has signed a major agreement with Invictus Investment to launch a new international dry... Read more


World Maritime Day message must extend beyond shipping

(Posted on 01/10/22)

Never has the theme of this year’s World Maritime Day - ‘New technologies for greener shipping... Read more


ClassNK issues AiP for ammonia bunkering vessel

(Posted on 01/10/22)

ClassNK has issued an Approval in Principle (AiP) for an ammonia bunkering vessel (ABV) developed by... Read more


IOMSR strikes four ship deal with MX Bulk

(Posted on 28/09/22)

The Isle of Man Ship Registry (IOMSR) is expanding its fleet after securing a new deal with fellow Isle... Read more


DNV and SIT to promote decarbonization and digitalization

(Posted on 25/09/22)

DNV has signed a Memorandum of Understanding (MOU) with the Singapore Institute of Technology (SIT)... Read more


Fleet pledge to reduce environmental footprint of plastic bottles

(Posted on 25/09/22)

Fleet Management Limited, part of the Caravel Group and the second-largest ship management company in... Read more


Idwal appoints Haysom new CCO as expansion continues

(Posted on 15/09/22)

Idwal has announced that George Haysom has joined the business as chief commercial officer (CCO) to... Read more


Britannia hosts P&I academy for members in London

(Posted on 15/09/22)

Previously known as Members’ Training Week, the Britannia P&I Academy provides a week-long... Read more


Sailors’ Society gives thanks for special relationship with Patron, Queen Elizabeth II

(Posted on 09/09/22)

International maritime charity Sailors’ Society has joined the British nation and Commonwealth... Read more


DNV signs autonomous ship technology MOU with HHI, AVIKUS and LISCR

(Posted on 09/09/22)

DNV has signed a memorandum of understanding (MOU) with maritime industry technology leaders HHI, AVIKUS... Read more


Port of StocktonBühler GmbHVan AalstTelestackTOC EventsThe Wolfson Centre for Bulk Solids Handling Technology
  • TOC Events
  • Bühler GmbH
  • Multimodal 2022

Subscribe to our newsletter

Keep up to date with the latest global news in bulk cargo handling and shipping