Hornblower Flagship Replaces Seals With Thordon's Maintenance-Free TG100

September 19, 2016

Thordon Bearings’ US West Coast Distributor, Pacific Marine Equipment has successfully completed the installation of a pair of TG100 mechanical propeller shaft seals to Hornblower Cruises & Events’ 1000-passenger capacity twin screw flagship, Inspiration Hornblower.

Inspiration-hornblower-and-tg100

Hownblower, one of the leading river cruise operators in the U.S. operates a fleet of 70 sightseeing and dinner cruise vessels in several cities across the Golden State, the United States and Canada.

Todd Terry, President, Pacific Marine Equipment, Thordon Bearings’ U.S. west coast distributor, said: “This is Hornblowers first TG100 installation. The owner needed a solution capable of preventing water ingress to the 68m (223ft) long vessel while reducing crew maintenance. And as a passenger vessel operator, Hornblower found the seals’ ‘safe return to port’ feature attractive. Prior to the retrofit, the vessel operated with packing glands.”

After several years of development, Thordon Bearings introduced the TG100 mechanical seal in 2013 for small vessels operating water-lubricated propeller shafts in both abrasive and clean waters.

Suitable for propeller shaft diameters of 100mm (4”) to 305mm (12”), the TG100 is manufactured using the highest quality, hard wearing silicon carbide seal faces and Thordon’s proprietary elastomeric polymer bellows

Scott Groves, Thordon Bearings’ Business Development Manager – Marine, said: “We are delighted to add Hornblower Cruises & Events to a growing reference list of vessels operating TG100 seals. The Inspiration Hornblower crew will be the main beneficiary given that the seal is maintenance-free and has no required spare parts within the first 10 years of operation.”

Since its market introduction, Thordon Bearings has supplied more than 180 TG100 seals to operators of a wide range of vessels, including workboats, naval patrol vessels, ferries, yachts, tugs and tow boats.

A unique feature of the TG100 is the emergency seal that permits stand-alone operation to allow the vessel to safely return to the nearest port, preventing permanent seal damage. The unique omega “Ω” shape of the proprietary elastomeric bellows minimises torsional vibration and maintains the required spring force throughout the allowable range of axial shaft movement. This elastomeric bellows has no shelf life and no scheduled replacement.

“While the TG100 seal is effective as a stand-alone installation, the optimum solution is in combination with our water-lubricated RiverTough tail-shaft bearings, which have now been installed to more than 400 vessels,” said Groves.

RiverTough and TG100 combination packages have also been ordered for installation on 14 pushboat vessels operated by a Columbian owner.

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