The lubrication method of SKF bearing  http://www.alierbearings.com/brand/skf/index2.html  is divided into grease lubrication and oil lubrication.
In order to make the bearing function well, first, choose the lubrication method which is suitable for use and use purpose.
Oil lubrication is superior to lubrication only.
However, lipid lubrication has the advantages of simplifying the structure of the bearing and comparing the advantages and disadvantages of grease lubrication and oil lubrication.
Special attention should be paid to lubrication, whether oil lubrication or grease lubrication, too little lubrication will not affect the bearing life, too much will produce great resistance and influence speed