A paving producer in Poland was experiencing frequent breakdowns due to bearing failures in a vibrating thickener machine. The bearings were mounted in an electric motor which supported unbalanced weights providing the vibration. In a period of 4 months the customer experienced 10 failures and each time it took 2 hours to replace the bearings. The existing bearings were experiencing grease leakage and high operating temperatures in excess of 110°C. NSK engineers performed an application review and recommended that the existing shielded bearings be replaced with NSK high integrity fluoride rubber contact seals.
Before | Cost p.a. | NSK Solution | Cost p.a. | |
---|---|---|---|---|
Regular bearing failure - up to 20 per 8 months season | €200 | No bearing failures within a 4 months season | €100 | |
Maintenance: 20 electric motor à 100 € each | €2.000 | No maintenance within a 4 months season | €0 | |
Lost in production per year: 40 hours à 750 € each downtime | €30.000 | No lost of production within a 4 months season | €0 | |
Total Costs | € 32 200 | € 100 |
Reference:SS-E-5002