Success Story
Industry: Steel & Metals
Application: Walking Beam, Material Handling
Cost Savings: € 15 556
Introduction
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.
- Walking Beam of a Steel Mill
- Spherical Roller Bearing
Key Facts
- High failure rate, plain bearings used, contaminated environment, high loads
- Outside location, material transport of steel bars
- NSK suggested a solution to save downtime and improve the production output
- The NSK Spherical Roller Bearings have a longer life calculaion than actually used bearings
- The NSK products performed for more than one year without any intervention
- Large cost savings were obtained from reduced maintenance and lost production cost
Value Proposals
- High failure rate, plain bearings used, contaminated environment, high loads
- Outside location, material transport of steel bars
- NSK suggested a solution to save downtime and improve the production output
- The NSK Spherical Roller Bearings have a longer life calculaion than actually used bearings
- The NSK products performed for more than one year without any intervention
- Large cost savings were obtained from reduced maintenance and lost production cost
Product Features
- High failure rate, plain bearings used, contaminated environment, high loads
- Outside location, material transport of steel bars
- NSK suggested a solution to save downtime and improve the production output
- The NSK Spherical Roller Bearings have a longer life calculaion than actually used bearings
- The NSK products performed for more than one year without any intervention
- Large cost savings were obtained from reduced maintenance and lost production cost
Cost Saving Breakdown
| 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
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