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 €|