Bearings for Mining Equipment and Contaminated Environments

Conveyors for Quarrying, Mining and Construction Application


An important quarrying and mining company were having reliability issues with a conveyor application. The bearing inserts were operating in a very harsh environment, exposed to water and abrasives particles. Located 5m above the ground, inspection and maintenance tasks were especially problematic, which created difficulty predicting premature failure.

NSK assessed the situation and proposed the use of Molded-Oil inserts and the result showed that bearing life was increased by nine times.

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