An energy producer in the UK was experiencing frequent breakdowns due to bearing failure within two industrial fan units. The critical assets were operating 24/7. On average the bearings on each fan unit failed every 3 months. NSK performed an application review. The route cause of failure was attributed to incorrect bearing fixing arrangement. NSK recommended using high capacity Spherical Roller Bearings used within SNN Plummer Blocks. A trial was conducted resulting in zero bearing failures over a 12 months period, with significant improvements in performance and reduced maintenance and associated downtime costs, with 4 times greater life.
Before | Cost p.a. | NSK Solution | Cost p.a. | |
---|---|---|---|---|
Bearing Cost: 2 bearings replaced 4 times per year x 2 fans | € 6,000 | Bearing Cost: Initial installation x 2 fans | € 1,200 | |
Downtime Costs: €1584/hr x 10 hr replacement time x 4 times per year x 2 Fans | € 126,720 | No downtime costs | € 0 | |
Fitting Costs: €42/hr x 10 hr replacement time x 4 times per year x 2 Fans | € 3,360 | Fitting costs: Initial fitting, €42/hr x 10 hr x 2 fans | € 840 | |
Total Costs | € 136 080 | € 2 040 |
Reference:SS-E-2092