Bearing grease injection there are four main methods, they are grease Cup, grease gun law, applied law and concentrated fat law.
　　1: grease Cup method
　　SKF bearings opened a small hole next to the grease Cup, grease continuous supply to the bearings of the Cup. For high speed bearing grease spill valve should be set through the bearing rotates the centrifugal force effect thrown out too much grease in the bearing to reduce bearing friction and bring high speed rotating the temperature rise.
　　2: applied law
　　Apply to use special tools, cannot be closed. Request to add fat to meet the above requirements, all FAG bearings require lubrication grease covered with surface. In oil use after a certain period has elapsed, need to replace the FAT or lipid supplementation.
　　3: grease gun
　　Adopted pressure grease through the grease gun and grease holes into the bearing, the method used to fill the fat.
　　4: set to lipid peroxidation method
　　Pumping through the pipeline to NSK bearings fat uniform parts, new oil flow path can be crowded with the exception of the old grease, and new oil to be added to the lubrication points.