Propeller Shaft Bearing Systems


Complete Prop Shaft System

Propeller Shaft Bearings

Shaft Coating

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COMPAC

Thordon COMPAC is a high performance water lubricated bearing system primarily for “blue water” operating conditions. Specially formulated with a low coefficient of friction to reduce startup friction and eliminate stick-slip.

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RiverTough

Thordon RiverTough propeller shaft bearings operating in combination with hard coated nickel-chrome-boron sleeves are specially formulated to provide superior wear life in very abrasive water conditions and have proven their ability to last at least twice as long as rubber bearings.  

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ThorShield 

Thordon's ThorShield propeller shaft coating system provides corrosion protection against seawater. This toughened, 2-part epoxy coating is up to nine times more flexible than existing shaft coating products.

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Water Quality Package

Shaft Seals

WQP SS r

Water Quality Package

The Thordon Water Quality Package is designed to supply seawater to the propeller shaft bearings for lubrication and cooling while also removing suspended solids from the seawater.

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Seal installed on Hudson low res (crop)

SeaThigor

The Thordon SeaThigor Seal is a mechanical face seal for 300mm (11.8") to 750mm (29.5") water lubricated propeller shafts found in yachts, cruise ships, merchant ships and naval vessels. The SeaThigor has evolved from a design first tested in 2003 and improved during the next decade.

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TG100

The Thordon TG100 is a new mechanical seal designed specifically for 86mm (3.375") to 305mm (12") shaft vessels operating in either clean or abrasive-laden waters including workboats, harbor tugs, offshore supply vessels, yachts, ferries, fishing trawlers and self-propelled dredgers. 

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Documents



Technical Papers



References


Design

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The final (fully finished) sizing of a Thordon elastomer or ThorPlas bearing can be determined by using the Thordon Bearing Sizing Calculation Program.

To download the Thordon Bearing Sizing Calculation Program Version 2017, Release 10, a user registration is required.

Request Bearing Sizing Program User Registration Number

Download Bearing Sizing Calculation Program (2.2 MB) Version 2017, Release 10



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  • Thumbnails-320x160-NW2018-1

    Thordon NewsWorks 2018

    Thordon’s web-based newsletter specifically developed for marine users of oil-free and grease-free bearings. This newsletter includes feature articles about seawater being the only commercially viable EAL, new class rules, and Thordon's SeaThigor seal.
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Recent Marine News

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  • News-Thumbnails-320x160_Composite

    NMDC to Complete Fleet-Wide Conversion to Thordon Seawater Lubricated Composite Cutter Shaft Bearings

    Nov 12, 2019
    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 NDMC has converted to the Thordon solution, following the success of similar conversions to the Al Sadr, Al Mirfa, Al Hamra, Umm Al Zemoul, Umm Al Anber and the beaver Dredge 2.
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  • ThordonNews-COMPACWarehouse-thumb

    MSC Cruises Returns to Thordon to Keep the Seashore Clean

    Oct 16, 2019
    Thordon Bearings has received an order to supply a water-lubricated propeller shaft bearing solution to Fincantieri’s Monfalcone shipyard for installation to MSC Seashore, the third Seaside Class cruiseship to which Thordon’s COMPAC system has been specified. The order follows the in-service performance success of COMPAC installations aboard the 154,000gt sisters MSC Seaside and MSC Seaview, delivered in 2017 and 2018, respectively.
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