In a steel plant a walking beam moves material in bar form along a conveyor while it cools. This used plain bush type bearings that failed about 6 times per year. NSK analysed the application and suggested a rolling element bearing solution to save downtime and improve output. The plain bush bearings currently used was replaced with spherical roller bearings, these gave a theoretical life calculation of 7.2 years. The bearings were fitted and performed for a year without any intervention. Contaminant ingress reduced and lubrication reduced, giving greater savings to the customer.
Before | Cost p.a. | NSK Solution | Cost p.a. | |
---|---|---|---|---|
Bearing Costs | 742 € | Bearing Costs | 430 € | |
Engineering Costs | 655 € | Engineering Costs | 0 € | |
Costs of lost production | 14 611 € | Costs of lost production | 0 € | |
Total Costs | 15 986 € | 430 € |
Reference:SS-E-2-587