Gold mine upgrades grinding mill pinion to prevent water ingress
The non-drive end spherical roller bearing on an ultra-fine grinding mill at a gold mine suffered failure every 15 months. Analysis showed the cause of failure to always be the same: water ingress into the housing. When the non-drive end bearing failed, both it and the drive side bearing were replaced as a precautionary measure, increasing maintenance costs. The SKF ultimate three-barrier solution (SKF housings, SKF Taconite Seals and upgraded sealed SKF Explorer spherical roller bearings) was installed in May of 2012. The bearings are still in service with very satisfactory performance.
*MTBF - Mean Time Between Failure