A company related to the Quarry & Mining industry was having frequent reliability problems with the bearing units assembled in a vibrating drum. These bearings worked under severe environments and were exposed to large amounts of sand, which often covered the units completely. Due to the nature of the application and its difficult access, the regularity and increasing cost of maintenance was an issue.
|Before||Cost p.a.||NSK Solution||Cost p.a.|
|Replacement per year × No. of engineers × €30/hr||€360||Less than 1 replacement per year × No engineers × hours × €30/hr||€36|
|Downtime costs: 70ton/hr × 7€/ton × hours × No. of replacement per year||€2.940||Downtime costs: 70ton/hr × 7€/ton × hours × No. replacements per year||€294|
|Bearing Life: 2 months approximately (440hrs)||€0||Bearing Life: 19 months approximately (4.400hrs)||€0|
|Total Costs||€ 3 300||€ 330|