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Thordon Bearings develops calculator to limit propeller shafts oil leaks

THORDON Bearings has developed a modelling tool capable of calculating the amount of oil leaked into the sea when a seawater-lubricated propeller shaft bearing is installed.

It was launched on Earth Day 2016, which is now in its 46th year. According to this 'Oil Savings Calculator' 60 million litres of oil pollution has been saved to date.



"In our opinion the only acceptable propeller shaft stern tube oil leakage is zero," said Thordon Bearings president Terry McGowan. 



"As the world's largest shipowner organisation, ITOPF supports measures designed to help our members and associates meet high environmental standards," said managing director of the International Tanker Pollution Federation (ITOPF) managing director Karen Purnell. 



"Though our primary function is to promote effective response to marine spills of oil and chemicals worldwide, we also support the maritime industry in its efforts to reduce ship-sourced pollution and provide for more sustainable marine operations," said Ms Purnell.



The oil saving calculation is based on analysis of the number of vessels that have been built with or converted to seawater lubrication, the 300 days a year each vessel is typically operational and an average oil leak of 6 litres per day per vessel.
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