A large producer of fish products was experiencing repeated failures on their Scraped Surface Heat Exchangers. They were changing bearings every 8 weeks which involved high maintenance costs and a lengthy machine down time. NSK investigated this problem and found that and hard contaminants were entering the bearing causing failure. They proposed a trial with NSK Molded-Oil bearings which resulted in immediate improvement and significant lifetime extension.
|Before||Cost p.a.||NSK Solution||Cost p.a.|
|Previously used Ball Bearings||€ 300||NSK Molded-Oil Deep Groove Ball Bearings||€ 225|
|12 failures à 5 hours downtime: 60hrs à 1.250€/hour||€ 75.000||No downtime||€ 0|
|12 failures à 5 hours maintenance: 60hrs à 62,5 €/hour
||€ 3.750||No labour costs||€ 0|
|Mechanical Seals x 12||€ 18.750||Mechanical Seals x 1||€ 1.562|
|Total Costs||€ 97.800||€ 1.787|