Needle roller bearing is easily influenced by environment, lead to bearing contamination, rust, deformation, etc. , so that it can reduce the service life of bearing, we all hope that the life of the needle roller bearing can be used longer, and if the damage can also affect our use, then what we do, to extend bearing life, take a look at.
1, cleaning: in addition to the double sealed bearing cover, as the rest of bearing in the factory are rust-proof oil, before use to clean, is often immerse bearing mixed with 8 -
10% mineral oil in gasoline, rotating took inner ring the opposite hand to wash the outer bearing surface rust inhibitor, clean the bearing can't spin, after returning gasoline volatilization, injection oil or grease, do not stick on dust, moisture, hand sweat, lest affect rotation accuracy and rust.
2, loading and unloading, installation of the shaft or hole should be smooth, no burr, carefully measuring the diameter of the shaft or hole whether accord with a standard, recognize bearing datum, for mounted on the shaft bearing ring, hoping to force, only in a hole in the bearing, the forces on the outer ring, the strength should be evenly distributed in the ring width on the circumference of a circle, avoid by all means is single punches, loading and unloading of interference quantity larger bearings, the bearing should be used in preheating method, heating temperature - in 90
Between 100 ℃.
3, save: bearing can't bare in the air, indoor storage warehouse save should maintain clean, dry, inventory air relative humidity is not more than 55%, the temperature is appropriate, fold the letter after temporarily without the bearing should be oil seal, also should be avoided and acid, alkali and chemicals such as corrosive substances together.
4, shipping: needle roller bearing in handling to avoid knock against, drop deformation and damage.
