A customer experiened repeated bearing failures in conveyor rollers. They were changing approximately 36 bearings annually and failures were taking place about every 6 week. Investigations by NSK showed the failures were caused by the ingress of water and hard particulates. NSK recommended replacing the standard bearings with NSK Molded-Oil bearings. A test of the bearings was conducted and no failures have occurred in 2 years. This solution resulted in a significant cost savings.
Before | Cost p.a. | NSK Solution | Cost p.a. | |
---|---|---|---|---|
Bearing Replacement: Ball bearings | $160 | Bearing Replacement: NSK Molded-Oil ball bearings | $106 | |
Downtime: 8.6 hrs at $3,332/hr | $28,655 | Downtime: none | $0 | |
Maintenance: 8.6 hrs at $26/hr | $224 | Maintenance: none | $0 | |
Total Costs | $29,039 | $106 |
Reference:SS-E-2054