A common bearing damage phenomena and reason

For the damaged bearings, by observing the damage phenomenon to analyze the cause of damage, and was improved, some corresponding repeat to avoid failure. Phenomenon: high hardness, particle grinding crack caused by the reasons and treatment advice: orbital plane and roller is full of dents; Keep on particulate matter and orbital plane abrasion and lubricant change color. The possible reasons: is often due to the assembly process caused by unclean. When installing the bearing must be kept clean, use the new grease, check whether the seal is in good condition. Phenomenon. 2: improper lubrication abrasion reasons and handling suggestion: surface wear is a mirror; After running the color blue or brown. May be caused by the insufficient lubrication, and easy to make temperature increase rapidly. To improve the lubrication condition, check the lubrication cycle and oil seal. Phenomenon: three vibration caused by the damage reason and treatment advice: for oval imprint on rolling body, for circular marks in ball bearing. At the bottom mark is shiny or rust. This means that bearing from vibration during resting. Device based vibration absorbing. If possible, try to use ball bearings instead of roller bearing, in addition, when transporting machine, binding in preloading bearings. Phenomenon of four: the dent caused by improper installation and overload causes and treatment advice: inside and outside the ring has a dent, and indentation spacing is equal to the distance between the roller. The reason for this may be not knock when installation on the right ring, or on the cone shaft push too much or in the stationary state load overload. Please do comply with the rules of installation method, or replace a rated higher bearing static load. Phenomenon of five: the dent caused by foreign body reason and treatment advice: rail and the roller with dents. Foreign bodies may be installed into, from the lubricant or the surrounding environment. When installing the bearing must be kept clean, use a clean grease, and check whether the seal is in good condition.