A customer experienced high temperatures within a dust extraction fan application on an ore preparation plant. The bearing temperature was cooled down at considerable cost by using compressed air.
NSK Engineering carried out an Application Review including a temperature survey revealing major issues with the sealing as they were operating at high speed causing seal lip burn off and over lubrication which contributed to the high running temperature.
NSK recommended using NSKHPS Spherical Roller Bearings with SNN Plummer Blocks and labyrinth seals, along with recommendations for correct lubrication intervals and quantities.
A trial was conducted resulting in a considerable temperature reduction and therewith significant cost savings as the compressed air cooling was no longer required.
- Double lips seals / V-ring seals / Felt seals / Labyrinth seals / Taconite seals
|Before||Cost p.a.||NSK Solution||Cost p.a.|
|Reduction of compressed air used to cool bearings||€88.955|
|No additional costs due to NSKHPS Spherical Roller Bearings with SNN Plummer Blocks and labyrinth seals||€ 0|