A Quarry & Mining company was having frequent reliability problems with bearing units assembled in a vibrating drum. Bearings were exposed to large amounts of sand, which often covered the units completely. Due to the nature of the application and its difficult access made repairs and cost of maintenance a large issue.
|Before||Cost p.a.||NSK Solution||Cost p.a.|
|Replacement per year × No. of engineers × $32/hr||$388||Less than 1 replacement per year × No engineers × hours × $32/hr||$39|
|Downtime costs: 70ton/hr × $7.5/ton × hours × No. of replacement per year||$3,150||Downtime costs: 70ton/hr × $7.5/ton × hours × No. replacements per year||$315|
|Bearing Life: 2 months approximately (440hrs)||$0||Bearing Life: 19 months approximately (4.400hrs)||$0|