Many in later period found NSK bearing's life is too short, it was found that the lubricant quality also affect the bearing's life directly except the other normal factors,. On NSK bearing lubricant detection methods: take drops lubricant agent between two fingers and rub, the fingers can feel it if any contaminants exist; or daub a thin layer of lubricant on the back of hand, and then go to sealing light check. Then replace the NSK bearing lubricant.
Note: Before using ,the oil better filtering first. While when replace grease for the NSK bearings that use grease lubrication, should avoid let the cotton things touching any part of the NSK bearing. Because the residues of these fibers may wedging rolling pieces and caused damage, especially small bearing applications should pay more attentions this problem.