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White Metal Coating

COG has its own fully equipped white metal facility that is used on all our high speed epicyclic bearing applications. The secure bonding of the white metal bearing alloy and the supporting shell material is essential to the reliability of the bearing. Our process is based upon a Gibson Centri-Tech Centrifugal Casting Machine and we only use highly refined Hoyt 11Z3 white metal from Ecka granules. A Hoyt Mk5 bondometer ensures a secure bond is present. Our operators are comprehensively trained and all components undergo a 100% inspection at each stage of the process to assure quality is rigorously maintained to BSI9001