Orkot bearings go into new Royal Navy destroyer

Orkot Marine Bearings, part of Trelleborg Sealing Solutions Rotherham, was contracted by Rolls-Royce Marine to supply shaft propulsion, rudder and stabiliser bearings plus protective covers and rope guards for the new Royal Navy T45 Daring Class Destroyer, the first of six destroyers to be built by Bae Systems. Made from Orkot TXMM and TLMM material specifically designed to operate at low shaft velocity with low friction and wear, the shaft propulsion bearings are Intermediate A Bracket units. Their design incorporates a patent-p locking key system to allow for bearing removal underwater. Coupling covers were supplied to protect the hydraulic shaft coupling from damage and corrosion and are designed to be removed and replaced during refits if the shaft is removed. These are sealed using O-rings and filled with biodegradable grease as added protection. Rope guards are fitted to the bearing strut barrels and protect the bearings from external damage while ensuring good hydrodynamic performance over the bearing assemblies. Orkot manufactures these from its Grade 321 material from orders received from BMT Defence Services. The rudder and stabiliser bearings are in Orkot TXMM material are seawater lubricated. The rudder units can operate totally dry under emergency conditions and the stabiliser bearings were specified following successful long-term operation on other Royal Navy capital ships.

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