A ore preparation plant was experiencing high temperatures within a dust extraction fan. 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. Operating at high speed caused the seal lip to burn off and over lubrication 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 significant cost savings by removal of the compressed air.
- Double lips seals / V-ring seals / Felt seals / Labyrinth seals / Taconite seals
|Before||Cost p.a.||NSK Solution||Cost p.a.|
|Cost of compressed air to cool bearings||$95,323||Eliminate need for compressed air||$0|
|No additional costs due to NSKHPS Spherical Roller Bearings with SNN Plummer Blocks and labyrinth seals||$0|