In light to normal load applications, metal fatigue is rarely an issue, but grease life is a limiting factor when determining the life of a sealed bearing.
Compared to standard SKF shielded deep groove ball bearings, SKF Energy Efficient deep groove ball bearings can more than double the mean time between failure due to reduced heat generated by the bearings and the specially formulated SKF low-friction grease.
Recommended operating conditions for SKF Energy Efficient deep groove ball bearings: