An important Quarrying & 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 5 meters 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 9 times.
|Before||Cost p.a.||NSK Solution||Cost p.a.|
|Replacements per year × employees time × €30/h||€540||Less than 1 replacement per year × employees time × €30/h||€63|
|Downtime costs: 250ton/h × €/7ton × time × replacements per year||€15.750||Downtime costs: 250ton/h × €7/ton × time × replacements per year||€1.838|
|Life: 2 months approximately (440h)||Life: 19 months approximately (4140h)|