Wednesday, August 5, 2020

Shafts, Couplings and Bearings News

The heafty bow, characteristic of a McIlwain design

North Arm Transport: Innovation in Towing

Founded in 1958 as an extension of the Stradiotti family businesses, North Arm Transportation has grown to be a significant fuel company on the BC coast. Over the years, the company fleet has expanded and evolved. With tugs in a range of size and power, as well as cargo and fuel barges, the company services the coast out of its headquarters in Vancouver on the North Arm of the Fraser River. They also have facilities on Mitchell Island in the Fraser and at Masset on Haida Gwaii.

A ready-to-fit marine bearing (Image: Vesconite)

Vesconite Wins Over Rubber Propeller Bearing

While many have historically praised rubber and nitrile rubber marine bearings, Vesconite Bearings, the maker of the no-swell Vesconite Hilube polymer, has seen ship repairers increasingly turn to its product.Such was the case in June, when one New Zealand repairer, who has traditionally only used rubber bearings, requested Vesconite Hilube for two sailing yachts.The client requested two propeller shaft bearings for the first, and a single bearing for the second, informs Vesconite Bearings’ Eddie Swanepoel.Sized for 1¾ ” and 1½ ” shafts…

(Image: Voith)

Electric Voith Schneider Propeller Unveiled

With the new electric Voith Schneider Propeller (eVSP), Voith is pushing ahead with the continuous electrification of its drive technologies. Among the advantages of the new eVSP are high efficiency and the reduction of complexity, since the permanent-magnet synchronous motor is already integrated in the propeller. The complete omission of gears reduces noise to a minimum and frees up critical space on the ship.The drive system combines the technology of the VSP with over a decade of electrical know-how of the Voith Inline Thruster (VIT).

© y.tanaka / Adobe Stock

ClassNK Amends Class Rules

Classification society ClassNK has released amendments to its Rules and Guidance for the Survey and Construction of Steel Ships.The 48 amendments were issued on 3June 30, including the following items:Regarding “Oil-lubricated Propeller Shafts Kind 1”, the notation requirements to affix “1C” to the classification characters of the ships fitted with oil-lubricated propeller shafts (Kind 1C), which have a reputation for being highly reliable by various means not only to prevent corrosion damage to stern tube bearings but also to facilitate general maintenance and management more easily…

(Photo: OXE Marine)

OXE Marine Delivers Its First 300hp Diesel Outboards

Sweden-based OXE Marine said it has delivered its first 300-horsepower diesel outboard engine after it commenced production of the new model in May. After passing rigorous quality tests, the first OXE300 units are now ready to be shipped to customers. The production of OXE300 will ramp up and move to new production facility in July.Designed, tested and produced in house by OXE Marine, the OXE300, derives its power from a three-liter six-cylinder bi-turbo automotive diesel engine.

(Image: Babcock)

Supply Contracts Awarded for UK Type 31 Frigate Program

Babcock Team 31 announced the second round of supply chain contract awards to support the UK Royal Navy’s Type 31 general purpose frigate program.Rolls-Royce is now a major supplier to the program with its brand MTU, delivering the main engines and diesel Generators for the frigates, which will be manufactured in Germany. Renk, will provide the main reduction gearboxes, and MAN Energy Solutions will supply the propellers and propeller shaft lines.In addition, Blunox are contracted to supply the SCR exhaust environmental equipment to reduce emissions from the main engines and diesel generators.

The Voith Schneider Propeller is ideal for autonomous and remote-controlled vessels because on the one hand the forces can be managed very logically (according to X/Y logic) and on the other hand it can allocate desired forces so quickly. Any sensor errors or errors in data processing can therefore best be compensated by the VSP. Together with partners, we have advanced the technology development to such an extent that remote-controlled tractors with VSP can be realized. Dr. Dirk Jürgens, Manage

Interview: Dr. Dirk Jürgens, Heads of R&D, Voith Turbo Marine

Dr. Dirk Jürgens heads R&D at Voith Turbo Marine, a part of the family owned Voith conglomerate which employs more than 19,000 people in 60 countries. Voith Rudderpropellers were chosen as the propulsion system for the three new Staten Island Ferry vessels, and Dr. Jürgens discusses the evolution of the system.The ‘Voith’ name is a well-known one in the maritime industry, but to start please provide an overview of the product and service you offer to the maritime industry.The…

Graphical rendering of the new hybrid RoRo (picture courtesy Finnlines/ Knud E. Hansen)

Finnlines Orders MAN Propulsion Package for New RoRos

MAN Energy Solutions has won the order to supply six MAN B&W 9S50ME-C9.6 Tier II-compliant main engines for three 238-meter roll-on/roll-off (RoRo) vessels intended for operation in the Baltic Sea. The customer is Finnlines PLC., the Finnish shipping company and part of the Grimaldi Group. MAN Energy Solutions’ two-stroke licensee – Hyundai Heavy Industries Co., Ltd. (Engine & Machinery Business Unit) – will build the engines in Korea, while Nanjing Jinling shipyard in China will construct the vessels.

Image: SCHOTTEL

Full SCHOTTEL Propulsion for Jan De Nul Crane Vessel

Jan De Nul has ordered a heavy lift crane vessel capable of lifting 5,000 metric tons from the CMHI Haimen shipyard in China. The vessel, to be named Les Alizés and due to enter service in 2022, will be equipped with a full SCHOTTEL propulsion package, including four rudderpropellers, two retractable rudderpropellers and two transverse thrusters.The main propulsion system of the crane vessel consists of four electrically driven SCHOTTEL Rudderpropellers type SRP 610 FP – each with an input power of 3,000 kilowatts and a propeller diameter of 3.3 etersm – installed at the stern.

(Image: ABB)

Jurong Marine Services Orders LNG Hybrid Tug

Sembcorp Marine subsidiary Jurong Marine Services has ordered a hybrid tug for delivery from the Sembcorp Marine shipyard by the end of 2020.The tug, which will operate in Singapore harbor, will be equipped with ABB’s electric propulsion, power, energy storage, control and automation technology, making it the first tug in South Asia capable of switching between low emission liquefied natural gas (LNG) engines and zero-emission battery power, ABB said.LNG as a fuel virtually eliminates sulphur oxide emissions…

Electric Motor Selection for Underwater Vehicles: Considerations of Partial Load Efficiency

It is easy to appreciate why permanent magnet synchronous motors (PMSMs) are popular for use in underwater vehicles (UVs). They are compact and efficient with a high power density. More importantly, perhaps, they allow for effective operation across a broad RPM range which is beneficial for vehicles with multiple operating conditions. That said, we find vehicle product developers are often uncertain about a motor’s “efficiency”. This article offers a few comments from the perspective of a propeller designer…

MV Ocean Endeavour (Photo courtesy of Royston)

Research Vessel Gets Turbocharger Overhaul

Marine propulsion engineers Royston has completed the overhaul of two turbocharger units as part of service work on a marine diesel engine onboard Gardline’s research vessel, MV Ocean Endeavour.The project saw the removal of the heavy-duty ABB VTR 200 turbochargers from the vessel’s Mirrlees Blackstone ES6 engines and transportation from Hull docks to Royston’s test and repair center on the banks of the River Tyne in the North East of England.There, the units were dismantled and inspected by engineers for signs of wear or damage before being cleaned…

(Image: Glosten)

SCHOTTEL to Propel St. Lawrence Seaway Tug

German propulsion manufacturer SCHOTTEL said it has been selected to equip a newly built harbor tugboat for the Saint Lawrence Seaway Development Corporation (SLSDC) with medium-sized azimuth thrusters. The vessel is under construction at the U.S. shipyard Washburn & Doughty in Maine. The HT-60, the smallest in the harbor tug series developed by the Seattle-based naval architecture firm Glosten, is scheduled for delivery in 2021.Craig Middlebrook, Deputy Administrator of the SLSDC, said, “This new vessel will be used to carry out a variety of construction and maintenance duties for the U.S.

Jaakko Eskola, President & CEO of Wärtsilä Corporation (Photo: Wärtsilä)

Wärtsilä Reorganizes Its Marine Business

Wärtsilä announced it will reorganize its marine business into three independent entities, with the objective to accelerate strategy execution and simplify the business structure.The new businesses, consisting of Marine Power, Marine Systems and Marine Voyage, will be operational as of July 1, 2020.The organizational structure change is a continuation to the shifts made in 2019, whereby Wärtsilä's equipment and service businesses were integrated to strengthen the focus on complete lifecycle solutions…

ZF 5200 A/V PTI Hybrid Transmission (Image: ZF)

ZF Unveils 5200 A/V PTI Hybrid Transmission

With the ZF 5200 A/V PTI, ZF Marine is introducing the brand’s first hybrid transmission that can be installed in the ship in both V (V drive) and A (down angle) positions. Thanks to the wide range of transmission ratios and space-saving design, the ZF 5200 A/V PTI is suited for many different types of marine vessels.Ship designers currently face a wide array of challenges: In the leisure yacht segment, customers want as much living space as possible, while the boom in logistics and tourism requires ferries to make ever more space available for cargo.

Royston has completed an overhaul of engines on the Henrietta PG (Photo: Royston)

Royston Completes Engine Overhaul Work on Tanker

Royston completed work to overhaul a high-speed diesel engine on a Pritchard Gordon Tanker.Engineers undertook the 51,000 running hour service on the No.2 generator onboard the 127m length Henrietta PG in Trinidad as part of a planned refurbishment and maintenance program. The Henrietta PG is one of 10 purpose built shallow draft, double hull tankers from 6,200 dwt to 10,600 dwt in the Pritchard Gordon Tankers’ fleet. The company specializes in the transportation of crude oil…

(from left): Poul Knudsgaard, Head of Four Stroke Denmark, Jan Zebitz, Head of Aft Ship & Propeller, Stjepan Kucifer, Managing Director MAN ES China Production, and Kui Xi, CFO MAN ES Shanghai China (Photo: MAN Energy Solutions)_

MAN to Open New Propeller Facility in China

Intercompany agreement signed between MAN Energy Solutions’ China Production and Four-Stroke Denmark’s Aft Ship & Propeller Department will establish a local CPP Assembly & Test facility with the aim to expand the propeller business further into the Chinese market.The target is to double the market share, and the plan is to start assembling the first systems in the middle of 2020, the company said.Jan Zebitz, Head of Aft Ship & Propeller, said: “There are several reasons for us to move closer to the Chinese market.

(Image: Volvo Penta)

Volvo Penta D13 IPS1350 Powering Semi-displacement Yachts

Volvo Penta has expanded its Inboard Performance System (IPS) propulsion system to the larger semi-displacement yachting segment with the updated D13 IPS 1350 semi-displacement (SD). The new edition Volvo Penta D13 propulsion system’s torque curve has been modified to cope with higher thrust loads at slower speeds. The D13 IPS 1350 SD also has a wider speed range down to 19 knots (former 25 knots).With this new edition D13 IPS1350 also comes the introduction of two new propellers…

(Photo: Royston)

Royston Overhauls Aoka Mizu FPSO Power Systems

Royston said it has completed the overhaul of a critical power system on board the Bluewater Services operated floating production, storage and offloading (FPSO) vessel Aoka Mizu.The diesel power specialist said its team of engineers undertook the 6,000-hour service on the MAN 32/40 STX diesel generator B on board the 88,000 dwt floater as part of a planned refurbishment and refit of essential power systems.Work on the vessel, which is currently on contract to Hurricane Energy for the early production system (EPS) on the Lancaster field…

Image: Damen Shipyards Group

DMC Delivers Rudders to Chinese Yard

Netherlands-based Damen Marine Components (DMC), which specializes in the design and production of rudders, has completed the supply of nine Van der Velden ATLANTIC rudders to COSCO Guangdong Shipyard over a two-and-a-half-year period.The rudders have been installed on nine 1,750 TEU Feeder Container Vessels built for a UK-headquartered ship owning and management company, said DMC.The supply took place in three stages with a first contract signed by DMC and COSCO Guangdong in March 2017 for the immediate supply of three ATLANTIC rudders, plus an option on a further three.

Image Credit: STENA

Ferry Stena Estrid Completes Sea Trials

Stena Line’s "next-generation" ferry Stena Estrid has arrived in Holyhead after completing sea trials and a five-week, 10,000 mile journey from China to the Irish Sea where she will begin service early next year on her inaugural route from Dublin to Holyhead.Designed by Deltamarin and constructed at the China Merchants Jinling Shipbuilding Weihai Shipyard in China, Stena Estrid is the first of Stena RoRo’s nine next-generation E-Flexer Ro-Pax vessels in a series which include five for Stena Line and several additional vessels that will be on long-term charter for other ferry operators.

(Image: ZF)

ZF Unveils Condition Monitoring for Thruster Systems

Marine propulsion systems company ZF has introduced an intelligent Condition Monitoring System for thrusters. The technology monitors the status of the thruster system and helps shipyards, shipping companies and fleet operators maintain the safety and efficiency of their ships as well as extend the service life of the propulsion system. In addition to that, a new oil cleaning system ensures oil quality and prolongs oil service life.ZF’s Condition Monitoring System is equipped with various sensors and an intelligent electronic evaluation unit.

Photo: Vetus Maxwell

Vetus Maxwell Strengthens Marine Business

Vetus Maxwell is showcasing its expanded BOW PRO thruster range at the International Workboat Show.The addition of two larger BOW PRO Boosted thruster models has strengthened Vetus Maxwell’s range of control, maneuvering and Dynamic Positioning solutions available for ferries, excursion vessels, pilot boats, search and recovery, and law enforcement boats through the award-winning BOW PRO series. Suitable for vessels up to about 70ft, the new BOWB180 and BOWB210 Boosted thrusters…

Photo: Cummins

Cummins to Power Kuching Cross-River Ferry

So many cities are built on rivers for obvious reasons of transport up and down but also as ports for foreign trade. But not all of a port city’s trade is up and down the river. People and vehicles must also cross the river. Bridges are great and most cities have one or more, but they are expensive and they lack flexibility.In Kuching, Sarawak this cross-river traffic created the niche for a ferry. Located on the broad, flat, estuary lands of the Sarawak River the city’s single bridge is some kilometers up from the sea.

Photo courtesy of  Wärtsilä

Wärtsilä Tapped for Norwegian FV Upgrade

Wärtsilä is to supply a 12-year old fishing vessel with a Wärtsilä 32 engine, a NOx Reducer (SCR) selective catalytic reduction system, and a shaft generator. The new engine will replace an existing one from another supplier onboard the ‘Brennholm’, a 75-m long vessel owned by Norway-based operator Brennholm AS. The installation will take place at the Orskov Yard in Denmark at the end of 2020. According to measurements carried out in various operating modes, the fuel-efficient Wärtsilä engine will save approximately 13 percent in fuel costs compared to the vessel’s existing engine.

Photo: Volvo Penta

Volvo Penta Expands Commitment to WWF

Volvo Penta is expanding its commitment to the WWF Climate Savers program by including its medium-duty engines. The marine D8 IMO III engine range will now be included in the company’s fuel-saving commitment.Since 2014 Volvo Penta has been a member of the WWF Climate Savers program, as part of the wider Volvo Group pledge. The purpose of the program, which is run by the WWF (World Wide Fund for Nature), is to encourage business and industry to make pledges that reduce their impact…

The 89m dredger Al Khatem, operated by NMDC (Photo courtesy of Thordon Bearings)

NMDC to Complete Fleet-Wide Thordon Conversion

The National Marine Dredging Company has replaced the rubber cutter shaft bearings on the 89m dredger Al Khatem, marking a step closer to the Abu Dhabi-based dredging company’s fleet-wide conversion to Thordon Bearings’ seawater lubricated Composite cutterhead bearings and cutterhead intermediate lineshaft bearings.The 1979-built Al Khatem is the latest heavy-duty cutter suction dredger NMDC has converted to the Thordon solution, following the success of similar conversions to the Al Sadr…

Photo: Naval Group

MAN Powers French Naval Logistic Vessels

A temporary consortium formed by Chantiers de l'Atlantique and Naval Group has been awarded a contract for four Logistic Support Ships (LSS). As part of the deal, MAN Energy Solutions will supply the Chantiers de l’Atlantique shipyard with a total of 16 engines in connection with the building of the four refueling tankers for the French Navy.Each vessel will feature a diesel-electric propulsion system with two shaft lines and propellers. MAN’s scope of supply covers 2 × MAN 12V32/44CR engines (2 × 7,200kW) + 2 × MAN 8L32/44CR engines (2 × 4,800kW) resiliently mounted on baseframes.

Photo: ExxonMobil

Mobilgard for Plug-In Hybrid Vessel

ExxonMobil is supplying Mobilgard ADL 40 engine oil for Color Hybrid, Color Line’s latest addition to its fleet of ferries. The vessel is the world’s largest plug-in battery hybrid ship and was recently named ‘ship of the year 2019’ by Nor-Shipping.The vessel, which is already in service between Sandefjord, Norway, and Strömstad, Sweden, is capable of carrying 2,000 passengers and 500 cars. It combines four conventional Rolls-Royce Bergen B33:45L in-line diesel engines with electric…

AET's Eagle Blane and Eagle Balder were unveiled at a naming ceremony held at the Samsung Heavy Industries (SHI) Geoje Shipyard, South Korea, today
(Photo: AET)

Two LNG Dual-Fuel DP Shuttle Tankers Unveiled

AET, a petroleum tanker owner and operator, has named its newest vessels, two of the world's first LNG Dual-Fuel Dynamic Positioning Shuttle Tankers (DPSTs). The vessels, the cleanest DPSTs ever built, will emit 40-48% less carbon than equivalent vessels built in 2008, meeting the International Maritime Organization's (IMO) target of reducing carbon (CO2) emissions by 40% against 2008 baselines by 2030, and halving CO2 emissions by 2050.These LNG Dual-Fuel DPSTs also emit 85% less SOx…

Photo: Robert Allan Ltd.

18 Meter Fire-Floats for Bangladesh

Robert Allan Ltd. has delivered a design of two unique fire-floats to Khulna Shipyard Ltd in Bangladesh. The boats will measure 18.9 m x 5.3 m with a special hard chine semi-displacement hull designed for river service and fitted with twin open style skegs for debris protection. The all aluminum hulls will be powered by two 560 kW 6135SFM85 John Deere main engines for a speed of 20 knots. Reduction gears will be Reintjes WAF 244 with 2.5:1 reduction ratio driving stainless steel shafts and bronze propellers.

3D renderings courtesy of Finnish Defense Forces

Aker Arctic Wins Finnish Navy Supply Deal

The Finnish Defense Forces Logistics Command and Aker Arctic Technology Inc. recently signed a contract for the design, delivery and integration of complete propulsion lines to four Pohjanmaa-class multi-role corvettes for the Finnish Navy. Construction of the vessels is scheduled to begin in 2022 and the four-strong squadron will achieve operational readiness in 2028.Aker Arctic’s scope of delivery includes ice-strengthened controllable pitch propellers and their pitch control mechanisms, propeller shafts, bearings and shaft seals.

Thruster Design for Submersible Developers

Many companies involved in submersible vehicle development also look to equip the vehicle with a custom thruster. These companies typically have expertise in vehicle and drive design, but will not be experienced in propulsor design. Nor would they be expected to have the specialized tools necessary for proficient thruster design, analysis, and optimization. This article will introduce submersible vehicle developers to the design practices used by HydroComp and other specialists…

Photo: Thordon Bearings

Global Tiger Success for Thordon Bearings

Canadian company Thordon Bearings has notched up another success story for a customer in the demanding offshore sector, with a bearing and seal installation in “perfect condition” after over three years of operation.Global Tiger, operated by UAE-based Global Marine Co is a 42m (138ft) crew/supply vessel currently in service in the Middle East. It is one of a pair of all-aluminium crewboats built by Grandweld of Dubai in 2015/2016. The vessel, with 83-person capacity, is powered by a triple-screw Caterpillar propulsion plant…

Photo: Royston

Royston Completes OSV Engine Overhaul

New work to overhaul engines on an offshore support vessel (OSV) operated by United Offshore Support (UOS), has been completed by Royston.Engineers undertook the 30,000 running hour service on the main propulsion engines onboard the GH Challenger, as part of an extensive refurbishment and maintenance program of critical power plants.The 2009-built, 80m length, 3000 tonne-vessel, which is part of a 11-strong fleet, currently operates in the Caribbean Sea, where it’s supporting…

Photo: Teignbridge Propellers

Teignbridge Propels Interest at HRV1 Sea Trial

Torbay Harbour and Royal Torbay Yacht Club // Teignbridge Propellers hosted a group of members of the marine community recently to experience the HRV1 research vessel in action. Guests were able to see live-action, first-hand data onboard the  MCA category 4 coded catamaran. Back on shore at the Royal Torquay Yacht Club, Teignbridge explained how data from physical testing on-board HRV1 is coupled with numerical simulation tools in an integrated design workflow to deliver high performance propellers.

Photo: Cummins

Turkey/Norway Diesel-Electric-Battery Ferry

With a rugged coastline and many fjords to cross, Norway has become a world leader in progressive ferry design. Turkey, with a skilled work force and broad marine experience has become a leader in ferry construction. Put the two together and you have the teamwork that results in the Basto series of RO-RO ferries.The latest in the class, Basto VII, to be launched in December of 2019, will have at its heart, four Cummins QSK50 IMO Tier III diesel-powered generator sets, two in each end and each producing 1290 kWm.

Damen Marine Components is to supply the steering system for Austral Fisheries’ fishing vessel Cape Arkona. Pictured is a Van der Velden COMMANDER rotary vane steering gear, one of the components of the installation. (Photo: Damen Shipyards Group / Van der Velden)

DMC Steering System For Fisheries Vessel

Damen Marine Components (DMC) is to supply a steering system for Austral Fisheries’ trawler Cape Arkona, which is currently under construction at the Baatbygg yard at Maløy in western Norway. The 1,150 cu m vessel will accommodate 40 people in 26 cabins and is designed so that it can be operated as a freezer-trawler, long-liner and potter vessel, all at the same time.DMC will provide a Van der Velden Timon flap rudder with a heel bearing and a Van der Velden Commander rotary vane steering gear.

Photo: Chevron Marine Lubricants

Chevron Launches New Gear Oils

Chevron Marine Lubricants introduced a new range of  gear oils designed for use in industrial and marine clutched gear systems.In developing Meropa MG gear oils, Chevron Marine Lubricants responded to customer and original equipment manufacturer (OEM) demand for gear box oils designed to ensure optimal performance in Renk and Flender/Siemens, Reintjes and Brunvoll clutched gear boxes, each extensively used in marine vessels. Meropa MG gear oils carry approvals from those gearbox manufacturers…

Each of the Wärtsilä thrusters for Sleipnir is rated for 5.5 MW power. (Photo:  Wärtsilä)

Wärtsilä Thrusters on Sea Trials for Large SSCV

Performance of the propulsion solutions supplied by the technology group Wärtsilä exceeded the design specification and contributed to the success of the sea trials for the world’s largest semi-submersible crane vessel (SSCV). The ‘Sleipnir’ was built at Sembcorp Marine’s Tuas Boulevard Yard in Singapore for the Dutch offshore contractor Heerema Offshore Services (HOS). It was delivered from the yard in July.The huge vessel is designed for heavy lifting operations and is fitted with two cranes, each with a lifting capacity of 10,000 metric tonnes.

Photo courtesy of Honda

Honda Marine Announces iST Outboard Sale Date

Honda Marine has announced that the refreshed Honda Marine BF200, BF225, BF250 Intelligent Shift and Throttle (iST) electronically controlled outboard motors now are on sale at Honda Marine dealers nationwide. The mechanically controlled versions of these models have been available since early 2019.Targeting the heart of the boating market, the refreshed Honda BF200, BF225 and BF250 models mark the newest evolution in the company’s product line, integrating innovative design, a sleek new Progressive V Form style…

The various locations that water-cooled motors can be found on a ship. Image: ABB

The Drive Behind Water-Cooled Motors

Peter Svartsjö at ABB discusses the benefits of water-cooled motors for marine applications that require megawatt levels of power, including space saving, increased energy efficiency and reduced maintenance needs.Electric motors run several main functions on marine vessels – from propulsion and thrusters to deck handling equipment such as winches, anchors and pumps. This makes them mission-critical for ship owners and operators, as their reliability and performance can have a…

Thordon Video Makes TG100 Seal Installation a Breeze

Thordon Bearings has updated its TG100 seal installation requirements to facilitate cost-effective installation at all shipyards with the release of new instructional videos. Shipyard staff can quickly and easily install the state-of-the-art seal themselves, reducing the overall costs of TG100 procurement.In addition to instructions detailed in its TG100 Installation & Operation Manual, Thordon has produced a three-minute YouTube video outlining the steps shipyards need to take to achieve the perfect TG100 install.

Photo: RENK

RENK Wins Order for Hybrid Drive “MARHY”

At the end of March 2019, the maritime sales team of RENK’s Rheine plant managed to win its first new construction project for the maritime hybrid system called MARHY. This system enables ships with 2-stroke engines to efficiently generate on-board power supply by using the main engine (PTO-operation). In addition, a fully electric drive (PTH- operation) is available for zones with low emissions zones (port areas) and for emergencies.The newbuild is a 30,000 cbm LNG carrier owned by Knutsen OAS. It is equipped with a 6,00 kW strong 2-stroke main engine and is the first ofthis size.

Photo: SKF

World's First Hybrid Bearing Life Model from SKF

Called the Generalized Bearing Life Model (GBLM), its development will ensure that SKF customers and distributors choose the right bearing for the right application, every time.Until now, it has been difficult for engineers to predict whether a hybrid bearing will outperform a steel one in a given application, or whether the possible performance benefits that hybrid bearings enable are worth the extra investment they require. The conventional equations engineers use to calculate the rating life of a bearing do not reflect the real-world performance of hybrid designs.To rectify this issue…

Propeller shaft system. The JDP was prompted by an upsurge in stern tube bearing failures. Photo: DNV GL

DNV GL Updates Shaft Alignment Design Rules

Classification society DNV GL DNV GL informed that it will update its shaft alignment design rules to differentiate between Environmentally Acceptable Lubricants (EALs) and mineral oils in stern tubes.The update, will apply from 1 July 2019, and is based on the phase 1 findings from the joint development project (JDP) DNV GL has been operating along with the Swedish Club, Norwegian Hull Club, Gard and Skuld.The JDP was prompted by an upsurge in stern tube bearing failures that…

Image Credit: Maritime Reporter and Eric Norcross

MN100: The Best 100 firms in the Brown Water Sector

Is your company a Top 100 performer? The application period for this year’s MN100 edition is officially open and underway! Only those who apply can be considered for inclusion.The MN100, always our August print edition, is our annual look at the best 100 firms in the MarineNews, brown water, workboat space. There will never be a better time for you to tell MarineNews just why your firm is one of the best in the business. All of that – the selected 100 companies – will be featured in the August edition of the largest BPA-audited b-to-b publication in this genre.

Photo: Thordon Bearings

CCG Provides Icebreaker Nod for Seathigor

Thordon Bearings has received a Canadian Coast Guard contract to supply six award-winning SeaThigor shaft seals for retrofit installation to three purpose-built icebreakers.The 5,910grt CCGS Pierre Radisson, named after the 17th-century French fur trader and explorer, along with sisterships CCGS Amundsen and CCGS Des Groseilliers, will each be retrofitted with two SeaThigor forward seals during scheduled drydockings over the next year.The order, confirmed on the 1st of April,…

Based on the success of the SXL retrofits, Salinor/Navenor approached Thortech to supply a complete bearing and seal package for the shallow draught bulker Comandante Paschoal (Photo courtesy of Thordon Bearings)

Navenor's Opts for Thordon Bearing

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.The Brazilian owner opted for the Thordon package following the failure of the bearings on two newbuilds at the Manaus Shipyard delivered in 2015.The salt carrier Nossa Sra. das Das Vitorias was retrofitted with Thordon’s SXL propeller shaft bearings after just three weeks of operation…

FHGME provides mobile service to engine rooms of yachts. Photo courtesy FHGME.

Concierge Yacht Repair, Service and Maintenance for Engine Rooms

As vessels increase in size, engine rooms increase in complexity. With superyachts approaching the size of small ships, qualified engineers with commercial and military experience operating larger vessels effectively prevent and troubleshoot problems.FHG Marine Engineering (FHGME) is a niche contractor with a business model providing concierge mobile preventative and routine yacht maintenance with emergency repair to luxury yachts in South Florida, minimizing downtime for vessels with 24-7 operations.

Photo: Thordon Bearings

Thordon Advises on VGP Delay

Thordon Bearings has advised its customers with newbuilds under construction to make sure they have the necessary documentation in place permitting operations in U.S. waters prior to 18th December 2018.The advice follows the October 10 announcement by the U.S. Environmental Protection Agency that the 2013 Vessel General Permit, due to expire in December 2018, will now be administratively continued till at least March 2019, when an updated version, VGP 3.0, will be introduced.“The delay in introducing VGP 3.0 means that operators of existing vessels looking to operate in U.S.

Photo: Thordon

Thordon Bearings Strengthens European Presence

Thordon Bearings, the provider of bearing solutions for marine, has signed sales and distribution agreements with St. Petersburg-based Industrial & Marine Projects (IMPRO) and Tallinn’s Marine Ecology Equipment (MEE), in a development that anticipates the introduction of more stringent pollution rules for European waterways.The appointment of new distributors for Lithuania, Latvia, Estonia, Russia and Azerbaijan coincides with concern that more should be done to reduce the impact…

Photo: Vesconite

A Containership Goes Green With Vesconite

When the stern tube bearing on the 490' x 75' container ship M/V Marine Rickmers began to fail, Durban, South Africa-based Elgin Brown & Hamer (EBH South Africa) replaced it with state-of-the-art, pollution-free Vesconite. The innovative self-lubricating polymer is far superior to oil-lubricated lignum vitae, white metal and composite bearings, especially with the implementation of ever more stringent environmental regulations.Vesconite doesn't swell in water and machines to +/-0.001", so tight tolerances are always ensured.

(Photo: Oldendorff Carriers)

Oldendorff Orders Shaft Power Torque Meters

U.K. based Datum Electronics has been awarded a contract from Oldendorff Carriers to supply its owned fleet with Datum Shaft Power Meter systems to seamlessly integrate with various existing ship performance monitoring systems.The addition of shaft power torque meters will help Oldendorff to further optimize fuel consumption and reduce emissions as the owner continues implementing fleet and ship performance monitoring systems aimed at reducing carbon footprint and improving technical…

Photo: Thordon Bearings

Lomar's Super-Eco Boxships Mark Breakthrough for Thordon Bearings

Delaware Trader, the first of two 2,700TEU newbuild containerships that China’s Guangzhou Wenchong Shipyard is delivering to Lomar Shipping this year, has been fitted with a seawater lubricated propeller shaft bearing system from Thordon Bearings.The vessel represents another breakthrough for Thordon Bearings’ COMPAC seawater lubricated propeller shaft bearing system in the European-owned containership segment.London-headquartered Lomar Shipping, a privately-owned ship owning and management company…


Mr. Shaun Padulo, President at Heddle Marine (left) and Mr. Terry McGowan (right), President and CEO at Thordon Bearings (Photo: Thordon Bearings)

Thordon Bearings, Heddle Marine Partner for Propeller Shaft Conversions

Thordon Bearings Inc. and Heddle Marine Service Inc. have signed a cooperative agreement under which the Canada-based ship repair company will work together with Thordon Bearings Inc. to promote the conversion of ships’ oil lubricated propeller shafts to Thordon’s COMPAC open seawater lubricated bearing system.The agreement will create an action plan in which a specialist team, comprised of Heddle Marine and Thordon Bearings’ personnel, to offer support to ship managers and owners…

Photo: Damen Marine Components

Damen to Equip Chile's Antarctic Research Vessel

Damen Marine Components has won a contract to supply steering gear, rudders and stern tube parts for an Antarctic research vessel of the Chilean Navy, under LRS -Polar 5 Class notation. The contract was awarded by ASMAR Talcahuano Shipyard, Chile. Design of the vessel was done in collaboration with VARD Canada.Damen Marine Components will be supplying twin COMMANDER Ram-Type electro-hydraulic steering gear units, twin ATLANTIC semi-spade rudders and twin stern tube casting parts. The vessel will be capable of speeds up to 15 knots.

VescoPlastics Celebrates 60

This year is the 60th anniversary of VescoPlastics and Vesconite, its first engineering plastic. The company's line of thermopolymers is used extensively in the marine, agriculture, heavy off-road equipment, pump, and hydroelectric and renewable energy industries.Founded by Alain Leger, an entrepreneurial engineer, Vesconite started in response to a need for an alternative to nylon bushings, which swelled and seized in humid underground mines. Years of testing resulted in a thermopolymer that had exceptionally low friction properties and could be machined to close tolerances.

Photo courtesy of Thordon Bearings

Alexis Marine To Retrofit Rivertough to Salt Lugger

Louisiana-based inland workboat operator Alexis Marine has awarded a supply contract to Thordon Bearings for the retrofitting of 6in diameter RiverTough bearings to MV Kristin Alexis, the 60ft twin-screw towboat built by Bollinger Shipyard in 1969.Both the vessel’s shafts will be withdrawn at New Orleans yard Bayou Fabricators and Machine Works, where the original rubber bearings will be replaced with Thordon’s RiverTough tailshaft bearings.The polymer bearing manufacturer will…

New Grease Extends Life, Lowers Temp of Tugboat Shaft Bearings

How does a tugboat operator with over 26 vessels used in docking, escort, ocean towing and articulated barge service get control of maintenance issues? In this case, by switching to Klüberplex BEM 41-132 grease to lower operating temperatures between 2 and 10 degrees Fahrenheit (3.6 and 18 Celsius), which significantly extends grease and bearing life. The tugboat business’ success depends on the reliability of their assets and the ability to provide superior customer service.

The Twiflex Turning, Locking & Braking (TLB) System consolidates three usually separate interfaces and functions into one design package (Image: Twiflex)

Twiflex: Turning, Locking & Braking System

Regular maintenance of propulsion shafts and propellers requires shafts to be aligned and locked in place so that ships’ engineers can perform the needed work. A Turning, Locking & Braking (TLB) System from Twiflex Ltd. provides a compact solution to allow the shaft position to be set and locked when the vessel is stationary. The Twiflex TLB consolidates three usually separate interfaces and functions into one design package. The modular TLB system is configured to allow customers to select and install one of the turning…

Photo: Thordon Bearings

OTI Installs Thordon's Largest TG100 Seal

Offshore Towing Inc (OTI) has completed the refurbishment of its 1974-built 9000hp-class tug Zion Falgout at the Conrad Deepwater shipyard, in Morgan City, La. The milestone project involved the retrofitting of TG100 seals in what marks OTI’s first mechanical shaft seal installation and the largest diameter TG100 series seals ever supplied by Thordon Bearings. An 11.75in (298mm) diameter seal was installed to each propeller shaft of the 66.88t bollard pull twin-screw workhorse.

Image: Thordon Bearings

Tropical Opts for Seawater Lubricated Shaft Package

Thordon Bearings’ Jacksonville-based distributor Coppedge Marine has secured an order with Tropical Shipping for the COMPAC seawater lubricated propeller shaft bearing system. The COMPAC systems destined for two 300TEU box ships under construction in China, at the Guangzhou Huangpu Wenchong Shipyard, will represent a first reference for COMPAC with this ship owner. “Tropical Shipping is a long-standing customer to whom we have supplied various Thordon equipment over the years,” said Ed Coppedge, Vice-President, Coppedge Marine.

Wärtsilä will supply controllable pitch propellers and shaft generator systems for two new RoRo vessels being built for CLdN Ro-Ro SA. (Photo: CLdN Ro-Ro SA)

Wärtsilä Wins Contract for New CLdN RoRos

Wärtsilä said it has been awarded a contract to supply controllable pitch propellers and power take off / power take home (PTO/PTH) shaft generator systems for two new RoRo vessels being built at the Uljanik shipyard in Croatia. The ships have been ordered by the Luxembourg based operator, CLdN Ro-Ro SA. There is an option for an additional two vessels. Wärtsilä, which booked its orders in December 2016 and February 2017, will supply the vessels with its latest design, WCP G-hub, optimized for high power density.

Photo: ABB

ABB Shaft Generators, Turbochargers for DFDS Vessels

ABB shaft generators will raise the energy efficiency on two DFDS vessels which have been designed to meet the latest environmental regulations. Two shaft generators will be installed in each of the cargo Ro-Ro ships allowing the main engines to operate at a wider, more optimal speed range. The shaft generator system takes its power from main engines, thereby increasing safety if there is a failure on the auxiliary engine. The ships’ main engines will also be turbocharged by ABB’s latest generation technology.

Terry McGowan, President and CEO, Thordon Bearings (seated right), and Mohammad Rizal (left), Chief Operating Officer of Drydocks World- Dubai, sign an agreement that affirms the two companies’ efforts to convert ships to seawater lubricated propeller shaft lines from oil (Photo: Thordon Bearings)

Thordon, DDW-D Partner for Shaft Line Conversions

Thordon Bearings and Drydocks World-Dubai (DDW-D) have signed an agreement under which the UAE-based shipyard will work together with Thordon Bearings Inc. to promote the conversion of ships’ oil lubricated propeller shafts to Thordon’s COMPAC open seawater lubricated bearing system. The agreement will create an action plan in which a specialist team, comprised of Drydocks World-Dubai and Thordon Bearings’ personnel, offer support to ship managers and owners looking to ensure…

AEGIR-Marine Adds Stabilizer Repair Services

AEGIR-Marine, full service provider for stern tube seals and propulsion systems for the maritime industry, said it has added stabilizer and steering gear repair services to its portfolio of maritime services. In February 2017 the company reinforced its team with Alan, a specialist in stabilizer engineering services. The Dutch company works with brand independent parts and provides service and parts for all major propulsion systems. AEGIR-Marine is now able to offer its ship owning customers a complete and integrated overhaul service.

Photo: Thordon Bearings

First Aluminum Hull Reference for Thordon Seal

Fullers Group’s has provided a first reference for Thordon Bearings’ TG100 seal on an aluminum hulled fast ferry. The New Zealand ferry operator’s new 34.9m (114.5 ft.) catamaran Korora, delivered from the Q-West shipyard in December, features a water lubricated propeller shaft arrangement based around a Henley Integrated Propulsion System. Auckland-headquartered Henley Group, an approved Thordon distributor, with a history dating to 1917, secured the contract to design and supply Korora’s complete drivetrain…