NTN cylindrical roller bearing use precautions on life impact

NTN cylindrical roller bearing are precision components that need to be handled with care. No matter how high-performance cylindrical roller bearings are used, the expected high performance will not be achieved if used improperly. The following are some precautions for the use of bearings.
First, keep the bearing and its surroundings clean
Even small dust that is invisible to the naked eye enters the NTN bearing, which increases bearing wear, vibration and noise. Cylindrical roller bearings and their surrounding accessories should be kept clean, especially dust and dirt, and the tools and working environment must be kept clean.
Second, use the installation carefully
It is not allowed to punch strongly. It is not allowed to directly hit the bearing with a hammer. It is not allowed to transmit pressure through the rolling elements.
Third, use the appropriate and correct installation tools
Whenever possible, use special tools, such as special heaters and puller tools, to avoid using cloth and staple fibers.
Fourth, to prevent bearing corrosion
When taking the bearing directly by hand, be sure to wash off the sweat from your hands and apply high-quality mineral oil before handling. Pay special attention to rust prevention during the rainy season and summer. However, under some special operating conditions, cylindrical roller bearings can achieve longer life than conventional calculations, especially at light loads. These special operating preconditions are when the rolling surfaces (tracks and rolling elements) are effectively separated by a lubricant film and the surface damage caused by contaminants is limited. In fact, under ideal conditions, the so-called permanent bearing life is possible.
There are many factors that affect the service life of NTN bearings, which can be roughly divided into usage factors and internal factors.
The use factors mainly refer to whether the installation adjustment, use and maintenance, maintenance and repair, etc. meet the technical requirements. The installation condition is one of the primary factors in the use factor, and the force state between the parts of the entire cylindrical roller bearing changes due to improper installation, and the NTN bearing operates in an abnormal state and ends the service life early. The internal factors mainly refer to the three major factors that determine the quality of the bearing, such as structural design, manufacturing process and material quality.
The manufacture of bearings generally involves multiple processing steps. The rationality, advancement and stability of each processing technology will also affect the life of the bearing. The heat treatment and grinding process that affects the quality of the finished cylindrical roller bearing has a more direct relationship with the failure of the NTN bearing.