Van AalstMultimodal 2022TOC EventsTelestackCimbriaPort of Stockton
  • Cimbria
  • Van Aalst
  • TBA Group
  • Sailors Society
  • The Wolfson Centre for Bulk Solids Handling Technology
  • TOC Events

Thordon Bearings unveils new shaft seal with SRTP benefit

Thordon Bearings unveils new shaft seal with SRTP benefit

(Posted on 09/02/22)

 Thordon Bearings has unveiled the BlueWater Seal, a new propeller shaft seal with a unique Safe Return to Port (SRTP) design that specifically meets commercial shipping industry needs for a low maintenance and robust shaft seal. The Thordon BlueWater Seal completes the COMPAC open seawater lubricated propeller shaft bearing system.

Taking the company’s TG100 and SeaThigor seal products as the technical benchmark, the Thordon BlueWater Seal is a cost effective, commercial grade axial lip seal specifically designed for merchant shipping fleets.

While retaining many of the key features associated with the company’s existing seal portfolio, the new, more commercially focused BlueWater Seal is a high performance product benefitting from the same level of reliability associated with any Thordon product.

The BlueWater Seal also incorporates Thordon’s unique emergency Safe Return to Port (SRTP) capability. This ground-breaking technology, first used in the company’s TG100 and SeaThigor – designed for the workboat and specialized naval vessel markets respectively – represents the first SRTP seal designed for the merchant fleet.

Commenting on the development, Thordon Bearings’ Technical Director, Anthony Hamilton, said: “The BlueWater Seal meets growing market demand for a complete propeller shaft line solution from a single source. Although we can offer the seal as an individual component, it forms a fundamental part of the Thordon COMPAC open seawater lubricated propeller shaft bearing system.”

The COMPAC system includes Thordon’s proprietary seawater lubricated COMPAC bearings, shaft liners, ThorShield anti-corrosion shaft coating, a Thordon Water Quality Package, a Thordon Bearing Condition Monitoring System, and, now, the new BlueWater Seal.

The seal can be installed to all vessels with shaft diameters between 300mm to 1000mm (11.8in to 39.4in) and is simple to install, operate and maintain.

“At first glance the Thordon BlueWater Seal may look like any other axial lip face seal out there,” said Hamilton. “But what makes this seal unique is its SRTP capability and revolutionary RENFORM main seal ring.”

This technology, developed in-house by Chief Research Engineer Gary Ren, allows the facing elements of the seal to operate almost without any friction. In practical terms, it means the seal is much better suited to variable and low draught conditions – a key benefit to a globally-operating merchant ship.

During comparative trials on Thordon’s full-scale test rig in Burlington, Ontario, Canada, the seal operated without friction spikes and considerably less friction than similar seals leading to reduced wear, longer life and less maintenance.

“This seal minimizes water leakage and dramatically improves hydrodynamic and lubrication efficiency,” explained Hamilton. “The development is a real boon to those ship owners and operators looking to adopt an open seawater lubricated shaft line arrangement as the entire propeller shaft line system can now be sourced from one company,” he said.

Commenting on the inclusion of Thordon’s SRTP technology, Scott Groves, Thordon Bearings’ VP Sales, said: “The introduction of our innovative seal technology to the wider shipping fleet means a seawater lubricated propeller shaft is not only environmentally cleaner but even safer for ship and crew. The seal incorporates a secondary Safe Return to Port emergency seal. This inflates in the event of damage to the primary seal, allowing the shaft to continue to turn, allowing the vessel and crew to return safely to the nearest port. I believe the merchant fleet has never before had this capability.”

Craig Carter, VP Business Development, Thordon Bearings, added: “Although seawater lubrication is not a new technology, the BlueWater Seal very much is and fits perfectly with the International Maritime Organizations’ World Maritime theme for 2022: “new technologies for greener shipping”. It has also been designed in accordance with United Nations Sustainability Goal #14. Everything we do here at Thordon Bearings is geared to creating a zero-emission ship below the water line and ensuring our oceans are clean, free of any oil and grease.”

Having received class approvals from ABS, LR, DNV, BV and CCS, Thordon Bearings is now actively marketing the Thordon COMPAC system and BlueWater Seal in all commercial marine sectors.

Latest News

Phoenix Lighting expands range

(Posted on 21/06/22)

Phoenix Lighting has announced the launch of the Soar Series, an expansion of its product offering of... Read more


Konecranes Gen 6 MHC to upgrade Venetian port bulk handling

(Posted on 20/06/22)

The FHP Group has ordered an eco-efficient Generation 6 Konecranes Gottwald Mobile Harbour Crane for... Read more


Shipping fuel and lubes prices skyrocket

(Posted on 12/06/22)

More than 40 marine fuel suppliers from around the world have gathered at this year’s Posidonia... Read more


New Liebherr MHC breaks new ground

(Posted on 08/06/22)

With its new mobile harbour crane, Liebherr is presenting ground-breaking technical developments and... Read more


ABS-approved sterntube-less ship concept to keep oceans clean

(Posted on 08/06/22)

Thordon Bearings has welcomed the announcement by classification society ABS to award Approval in Principle... Read more


Wärtsilä opens world-leading Sustainable Technology Hub

(Posted on 03/06/22)

Wärtsilä Corporation has opened its new technology centre, the Sustainable Technology... Read more


Wärtsilä and Anglo-Eastern reach major safety milestone

(Posted on 31/05/22)

Wärtsilä Voyage, part of the technology group Wärtsilä, and ship manager Anglo-Eastern... Read more


Inmarsat Fleet Hotspot addresses connectivity requirement

(Posted on 31/05/22)

Eight significant amendments have been agreed to update the landmark Maritime Labour Convention 2006... Read more


Trials of innovative Inmarsat solution wrap up in Singapore

(Posted on 25/05/22)

Inmarsat, the world leader in global, mobile satellite communications, has completed the first phases... Read more


Pacific Basin and Nihon Shipyard sign zero-emission vessels MoU

(Posted on 18/05/22)

Pacific Basin Shipping Limited, one of the world’s leading dry bulk shipping companies, has signed... Read more


Sailors SocietyBühler GmbHThe Wolfson Centre for Bulk Solids Handling Technology ViganCleveland Cascades LtdPort of South Louisiana
  • Port of South Louisiana
  • Bühler GmbH
  • Cleveland Cascades Ltd
  • Port of Stockton

Subscribe to our newsletter

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