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 and determined that hard contaminants were entering the bearing causing failure. They proposed a testing of NSK Molded-Oil bearings which resulted in immediate improvement and significant increase in beairng life.
Before | Cost p.a. | NSK Solution | Cost p.a. | |
---|---|---|---|---|
Bearing Replacement: Ball Bearings | $320 | Bearing Replacement: NSK Molded-Oil Deep Groove Ball Bearings | $240 | |
Downtime: 12 failures @ 5 hours each: 60hrs @ $1,332/hour | $79,920 | Downtime: none | $0 | |
Maintenance: 12 failures@5 hours each= 60hrs @ $67/hour | $3,997 | Maintenance: none | $0 | |
Mechanical Seals x 12 | $19,990 | Mechanical Seals x 1 | $1,665 | |
Total Costs | $104,227 | $1,905 |
Reference:SS-E-2053