In a Quarry in the UAE the bearings in a jaw crusher failed once per year. This led to replacement and massive production loss due to downtime. The competitor bearings failed due to wrong installation, a lack of proper lubrication and weak performance under high temperature. NSK and the distributor investigated the failures which resulted in a modification of the shaft & housing. The maintenance staff was trained how to install the new NSK bearings (heat stabilised up to 200 °C) with the proper lubrication. The result was outstanding, the bearing is running for 5 years without any signs of degradation resulting in savings of nearly 2 million Euros per year.
Before | Cost p.a. | NSK Solution | Cost p.a. | |
---|---|---|---|---|
Bearing Costs | € 3 360 | Bearing Costs | € 12 000 | |
Engineering Costs | € 39 600 | Engineering Costs | € 13 200 | |
Costs of lost production | € 2 448 000 | Costs of lost production | € 489 600 | |
Total Costs | € 2 490 960 | € 514 800 |
Reference:SS-E-2-794