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|