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|