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Stern Tube

RSC Bio Solutions Hydraulic Fluids Earn MAN Approval

RSC Bio Solutions announced that its EnviroLogic 3068 and EnviroLogic 3100 high performance hydraulic fluids have been approved for use in MAN Diesel & Turbo systems. This approval allows RSC Bio Solutions to serve customers who have MAN stern tubes and propellers, primarily in the marine transport, ferry and fishing industries.   The EnviroLogic 3000 Series consists of readily biodegradable synthetic hydraulic fluids designed for extreme operating temperatures and pressures. Because they are formulated to provide exceptional oxidation and thermal properties, these products are ideal for mobile or marine hydraulic and propulsion systems operating in environmentally sensitive areas, RSC Bio Solutions siad. The hydraulic fluids can withstand temperatures as high as 150°F or as low as -20°F, and they can handle pressure as great as 5,000+ psi. When compared to conventional, petroleum based hydraulic oils, the EnviroLogic 3000 Series offers excellent wear protection and long changeover intervals.   Under the new OEM approval, EnviroLogic 3068 and EnviroLogic 3100 are approved for use in the following MAN systems: Fixed pitch propellers (FPP) with oil lubricated stern tube; Controllable pitch propellers ( CPP) with common oil lubricated stern tube and hub; Controllable pitch propellers ( CPP) with separate oil lubricated stern tube and hub


Mobdock Facilitates Onsite Underwater Ship Repair

hydrex mobdock.jpg

In February, Hydrex diver/technician teams carried out underwater stern tube seal repairs on a 139-meter container vessel in Port Everglades, Fla., close to the company’s office in Clearwater. The vessel was suffering from an oil leak, making a fast repair necessary. Using one of the company’s next generation flexible mobdocks the team was able to carry out the entire operation onsite and underwater, saving time and money for the owners.


Thor-Lube Bearing Receives Orders

Thordon Bearings Inc. of Canada recently received orders for environmentally friendly Thor-Lube sealed stern tube bearing systems for three LNG carrier newbuild projects in Korea and Japan. Daewoo Shipbuilding & Marine Engineering Co. Ltd ordered systems for two ships, one for Shell International Gas Limited and the second for the Australian LNG Ship Operating Co. (ALSOC). Mitsubishi Heavy Industries (MHI) of Japan ordered the third system for a second Shell newbuild


Iconic Schooner Fitted With Pollution-free Bearings

Bluenose ll: Photo credit Thordon Bearings Inc.

Nova Scotia’s sailing ambassador, 'Bluenose II', fitted with Thordon Bearings' water-lubricated stern tube & rudder bearings. Nova Scotia’s sailing ambassador, the Bluenose II, relaunched September 29, 2012 in Lunenburg, Nova Scotia fitted with pollution-free water lubricated stern tube and rudder bearings.  The extensive two-year $15.9 million restoration work was done by the Lunenburg Shipyard Alliance, made up of Covey Island Boat Works


RSC Gear Oils Gain Blohm, Voss Approcal

Photo: RSC

RSC Bio Solutions EnviroLogic 210 and EnviroLogic 215 readily biodegradable and non-toxic gear oils have passed the stringent performance requirements of Blohm. After significant testing, in both static and dynamic evaluations, these synthetic, high-performance products have met the requirements for two of Blohm + Voss Industries’ patented Simplex-Compact sealing systems: the “Standard” Seal and the “Airspace” Nonpolluting Seal.


Hydrex Underwater Repairs in Trinidad

Photo: Hydrex

Last month a Hydrex diver/technician team carried out underwater stern tube seal repairs on a 148-meter container vessel in Port of Spain, Trinidad. The ship was suffering from an oil leak, making an on-site repair necessary. Using one of the company’s flexible mobdocks the team was able to carry out the entire operation on-site and underwater, saving the owner an expensive and time-consuming trip to drydock.


BAE San Francisco Wins Navy Contract

BAE Systems San Francisco Ship Repair, San Francisco, Calif., is being awarded a $12,257,163 firm-fixed-price contract for a 55-calendar day regular overhaul and dry-docking of Military Sealift Command's dry cargo/ammunition ship USNS Alan Shepard.  Some of the major work items include dry-docking and undocking the ship, repairing interior decks, structural repairs, overhauling the main diesel generators, and inspecting and refurbishing the propeller shaft and stern tube


Chevron Introduces New Line: Clarity Synthetic EA Oils

Chevron Products Company, a Chevron U.S.A. Inc. division, unveiled a new line of Clarity Synthetic EA Hydraulic and Gear Oils for the marine industry and other applications where leaks or accidental discharge are a concern. These products meet the new EPA Vessel General Permit (VGP) requirements for environmentally acceptable lubricants (EALs). Clarity Synthetic EA Hydraulic and Gear Oils are designed to give maximum protection and provide seal compatibility in hydraulic equipment and


Emergency On-site Repairs Keeps Vessel Sailing

Photo courtesy of Hydrex

Hydrex offers fast on-site repairs in emergency situations. Its fast response team are ready to mobilize immediately to locations around the world for a wide range of operations.   There are many events that can stop a ship from sailing. Ships with a leaking stern tube are often not allowed to enter ports. A vessel can be tied up after a collision or a malfunctioning rudder can prevent safe maneuvering. Going to drydock is obviously not an option in such cases


Wärtsilä Sternguard In-Water Serviceable Seal Launched

Wärtsilä Sternguard In-Water Serviceable Seal Credit Wärtsilä

  Wärtsilä, the marine and offshore industry's leading solutions and services provider, introduces an innovative new seal that can be fully serviced underwater, without setting up a habitat. The new Sternguard In-Water Serviceable Seal is the first product of its kind on the market, offering customers increased uptime and lifecycle efficiency. Wärtsilä Sternguard In-Water Serviceable Seal is a fully split


ClassNK: Amendments to Rules of Container Carriers

PRESS RELEASE --  Classification society ClassNK (Chairman and President: Noboru Ueda) announced that it released amendments to its Rules and Guidance for the Survey and Construction of Steel Ships on 25 December 2015, including structural strength requirements of container carriers.  


New DNV GL Notations for Water-lubricated Tail Shafts

Image of a stern tube (courtesy of Svenska Bearing)

New DNV GL notations for water-lubricated tail shafts offers unlimited intervals between shaft withdrawals   Two new tail shaft monitoring class notations from DNV GL offer ship owners and operators the possibility of unlimited intervals between tail shaft withdrawal surveys for


Two Canadian Ferries to be Converted for LNG Operation

Image: Scott Arkell/Wärtsilä

Wärtsilä has been awarded the contract by Gdansk Shiprepair Yard Remontowa S.A., to supply a scope of engines, propulsion machinery, integrated automation systems, and gas handling systems required for the mid-life upgrading of two RoPax ferries and their conversion to operate on LNG fuel


Thordon Bearings Launches Oil Savings Calculator

 Thordon Bearings Launches Oil Savings Calculator   Thordon Bearings has developed a bespoke modeling tool capable of calculating the amount of operational oil prevented from leaking into the world’s oceans with each installation of a seawater-lubricated propeller shaft bearing.


‘Seawater is the Ultimate EAL’

Cost comparison of stern tube lubricants (Image courtesy of Thordon Bearings)

Thordon Bearings: “Seawater is the only commercially viable EAL for propeller shafts”   Thordon Bearings Inc., a manufacturer of seawater lubricated bearings for the global marine industry, has questioned the rise of environmentally acceptable lubricants (EALs) in oil-based


RCS' EAL Earns Additional Approval

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RSC Bio Solutions announced that its EnviroLogic  802 environmentally acceptable grease has met the requirements for approved use in AEGIR-Marine PRIME rudderstock seals. This approval is an extension of the existing partnership agreement between AEGIR-Marine and RSC Bio Solutions intended


Avance VLGCs Fixed

Image: Avance Gas

 Avance Gas said repairs of two very large gas carriers (VLGCs) are complete, allowing the delayed ships to get to work.   Both new build VLGCs recently dry-docked - Breeze (83,000dwt, built 2015) and Monsoon (83,000dwt, built 2015) - have completed warranty repairs related to


Thordon Reports Big Orders from Chinese Shipyards

Photo: Thordon Bearings

Thordon Bearings has received an order for a total of 20 seawater-lubricated COMPAC Propeller Shaft Bearing Systems for Chinese shipyards, marking the Canadian company’s most significant order for commercial vessels. Thordon Bearings


Shear Stability: The Key to Proper EAL Gear Oil Selection

Chart Kluber.jpg

Selection of gear oil for marine thrusters or a stern tube lubricant for use with propeller shaft bearings is often based on analyzing price/performance characteristics of the lubricant and its availability. Now with the implementation of the 2013 Vessel General Permit


Envirologic Gets Becker Marine Systems Approval

EnviroLogic 3032 hydraulic fluid and EnviroLogic 802 grease are certified as VGP compliant, technically feasible for marine industry   RSC Bio Solutions, a developer of environmentally acceptable lubricants (EALs) and cleaners, as well as 


New Class Rules Favor Seawater Lubricated Props

Thordon Bearings’ seawater-lubricated propeller shaft bearing system meets classification society rules for extended shaft withdrawal periods (Image: Thordon Bearings)

Classification societies are changing their monitoring rules for seawater-lubricated propeller shafts in line with the rules governing the inspection and withdrawal of oil-lubricated stern tube systems.   China Classification Society (CCS), for example


Thordon’s COMPAC for US’ Largest Containerships

Artist impression of Matson’s Aloha-class containership (Image: Matson)

Thordon Bearings has signed a contract to supply COMPAC seawater-lubricated propeller shaft bearing solutions to two Jones Act containerships under construction at the Aker Philadelphia Shipyard Inc. (APSI) for Matson Navigation Company, Inc.   


The Happy Company: An Unconventional Business Approach

The Happy Company – An Unconventional Business Approach (Image: AEGIR-Marine)

The first copy of AEGIR-Marin’s new book The Happy Company was presented today at Europort 2015 to Netherlands Maritime Technology managing director Peter Zoeteman by Ruud Muis, director AEGIR-Marine.   The Happy Company is a book about the love for shipping


Wärtsilä Design & Propulsion Machinery for Pelagic Trawler

The Wärtsilä controllable pitch propeller

  A new pelagic fishing trawler ordered by Scottish owner Mewstead LLP will be built according to a Wärtsilä design and will feature a broad scope of Wärtsilä propulsion machinery. The ship is to be built at the Nauta Shipyard in Poland and when completed will be the


Stern Tube Lubricating Options from PANOLIN

PANOLIN America, Inc. announced it is now offering customers more stern tube lubricating options.    With the success of STELLA MARIS stern tube lubricant, PANOLIN said it found itself continually being asked about older vessel solutions






 
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