Abstract
A problem of severe wear occurred at the guidance system of a door of a sea-lock. The seawater immersed guidance was a linear system with aluminium bronze bearing material on stainless steel rail material. A satisfactory laboratory simulation of the wear behaviour of the guidance system was achieved by testing with large test specimens. Six bearing materials were tested. Nodular and lamellar cast iron suffered severe scuffing and cannot be used. Sintered graphite bronze shows a wear coefficient about six times smaller than the original aluminium bronze. Two plastics were tested: PETP and PA. PA has the best friction and wear characteristics and is suggested as bearing material for the sliding system.
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