This high-entropy oil well bearings are used for supporting the long shaft mounted with tandem rotors. The environment is harsh, so the bearing needs heat resistant, wear resistant, corrosion resistantno magnetization. The typical alloy for this bearing is Co-6 which contains about 60Co.  As, the present product contains much lower Co content, the cost is largely reducedthe cobalt resource will be less required.

Used the concept of high-entropy alloy  to design a low-cobalt high-entropy alloy to replace the expensiveresource-consuming Co-6 alloy.

Used in the oil well drilling industryother industries that use Co-6 alloy.