Garfield County News | 1938-04-14 | Page 2 | Indium, Rare Metal, Gives Bearings Longer Life

indium rare metal gives bearings longer life now new york indium a few years ago a chemical curiosity extracted with great difficulty from rare minerals Is now a full fledged industrial metal with an ever expanding use as an alloying agent for bear ing metals motor bearings resisting millions of revolutions during the life of a car are now being made even tougher C F smart general motors engineer reported to the amerlean american institute of mining nd metallurgical lurg ical engineers here by plating the bearing surface with indium this surface coating makes the bearing metal resistant to corrosion by the add acid oils now in common use in motor cars until recently babbitt metal an alloy of bf tin antimony and copper was used tor for most high speed bearings today bearings are lined with collver copper cadmium cadmium nickel and cadmium zinc xe alloys which are later electroplated electro plated with indium increasing their resistance to oil corrosion