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 bearings were experiencing grease loss due to high operating temperatures in excess of 110°C 230°F. NSK engineers performed an application review and recommended that the existing shielded bearings be replaced with NSK fluoride rubber contact seals.
|Before||Cost p.a.||NSK Solution||Cost p.a.|
|Bearing failure - 20 in 8 months||$213||No bearing failures during 4 months of testing||$107|
|Maintenance: 20 electric motor $107 each||$2,100||No maintenance required in 4 months||$0|
|Lost annual production: 40 hours at $799/hr||$31,960||No downtim in 4 months||$0|