A quarrying company was experiencing bearing failures due to contamination on each side of the conveyor head pulley. This caused increased maintenance cost, reduced lifetime of the bearing and a downtime in production every 18 months. NSK analysed the bearing and recommended to use bearings in High Tough steel (HTF). After the bearings were put into service they lasted 6 years.
Before | Cost p.a. | NSK Solution | Cost p.a. | |
---|---|---|---|---|
6 People, working 12 hours @ 32 € per hour | € 2.304 | No mentainance necessary | € 0 | |
7,000 tons per hour x 12 hour stoppage x 4 times x 13.5 € per ton | € 4.536.000 | No lost production stoppages | € 0 | |
Total Costs | € 4 538 304 | € 0 |
Reference:SS-E-0020