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Thordon Bearing Unveils Wireless Wear Measurement System

Release Time：20 Nov,2024

<p style="text-align: center;"><img src="/ueditor/php/upload/image/20241120/1732087610138355.png" title="1732087610138355.png" alt="1.png"/></p><p style="text-align: justify;"><span style="font-family: arial, helvetica, sans-serif; font-size: 12px;">Thordon Bearings has unveiled a new wireless propeller shaft bearing wear measurement system, marking a significant advancement in hull and propeller shaft condition monitoring. Developed in partnership with CSignum, a UK-based underwater communications specialist, Thordon’s Bearing Condition Monitoring – Wireless (BCM-W) system adopts patented electromagnetic field signaling (EMFS) technology to transfer data from underwater sensors to monitors positioned above the waterline. The technology eliminates the need for the wired monitoring systems typically used to indicate the bearing clearance of seawater-lubricated propeller shaft bearings. Traditional wired systems pose their own challenges for acquiring data and are not always possible to install without shaft withdrawal. Thordon Bearings’ Technical Director Anthony Hamilton said: “Typical wired bearing condition monitoring systems can be installed during the newbuild stage, but unlikely to be used in retrofit applications as the shaft needs to be withdrawn to install the cable.” “Shaft withdrawal is not required with the BCM-W. It completely eliminates the need for cumbersome and penetrative cabling and removes the need for frequent and costly diver inspections.” Simple to install in drydock or afloat, the BCM-W incorporates a non-intrusive sensor bolted on to the vessel’s sterntube and/or ‘A’ or ‘P’ bracket flange that is connected to the state-of-the-art subsea modem. Bearing clearance information is then transmitted to a topside modem data retrieval unit sited on an upper deck bulkhead. It is from here that ship operators upload bearing clearance data to a tablet or laptop. “This level of reliable, on-demand information minimizes ship downtime, helps keep vessels operational, and reduces maintenance costs,” said Hamilton. “With the Thordon BCM-W, ship operators can now easily log bearing wear rates and clearance trends. Any sudden changes that indicate shaft misalignment can be quickly detected. Current wireless data transmission technology is unable to cross the water to air boundary.” While the Thordon BCM-W has been developed for seawater-lubricated bearing clearance monitoring, the technology can be easily integrated with other sensors to provide a more holistic view of the ship’s hull below the water line. For example, the technology can be used to monitor other data from other sensors, besides the bearing clearance. For example, temperature, strain gauge, salinity, etc. Jonathan Reeves, CEO, CSignum, said: “Presently, monitoring is predominantly conducted through manual inspections, and such approaches lack the capability to provide continuous, real-time data, making it challenging to promptly address emerging issues. CSignum’s EMFS technology significantly improves monitoring by offering a wireless, cable-free solution that overcomes the limitations of traditional methods and offers a way to monitor dynamic operating conditions. “This is a real game-changer for the maritime industry. By enabling continuous, real-time data collection, we empower ship operators to address potential issues before they become major problems, enhancing operational efficiency and reducing the impact of operations on the environment.”</span></p>