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.
![Steel - Metals, Cold Rolling Mill Cold rolling mill](/adobe/dynamicmedia/deliver/dm-aid--4b129334-55d2-4d23-a5e0-0bd83a207fb3/in-sm-cold-rolling-mill-i-874x555.jpg?preferwebp=true&quality=85)
- Walking Beam of a Steel Mill
![Spherical Roller Bearing, EA Series, Press Steel Cage, 2Comp Spherical Roller Bearing - EA Cage](/adobe/dynamicmedia/deliver/dm-aid--3ff486c8-9baf-455f-8d45-66e2f8420b38/p-srb-ea-series-press-steel-cage-2comp-874x555.jpg?preferwebp=true&quality=85)
- 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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