The usage method of four point contact bearings mainly involves installation, operation, and maintenance. The following are detailed steps and precautions:
1、 Installation
Preheating bearings: Before installation, it is recommended to heat the bearings to an appropriate temperature (usually 120 ° C) and maintain it for a period of time (such as 30 minutes) to expand the inner diameter of the bearings and facilitate installation. This step helps reduce friction and resistance during installation.
Check fit: Ensure that the mating surface of the bearing seat and journal is clean and smooth, and check if the mating tolerance meets the requirements. Tight or loose fit may affect the operational performance and lifespan of bearings.
Installation of bearings: Gently push the bearing into the bearing seat and journal, ensuring that the inner and outer rings of the bearing are in close contact with the mating surface. During the installation process, avoid using brute force or knocking on the bearings to avoid damaging them or affecting their accuracy.
Fixed bearings: For bearings that require positioning, appropriate positioning devices (such as locking nuts, positioning rings, etc.) should be used to fix the position of the bearing and prevent axial movement during operation.
2、 Run
Lubrication: Four point contact bearings require good lubrication to reduce friction and wear. Suitable lubricants (such as lubricating oil or grease) should be selected based on the type, size, speed, and working environment of the bearing, and lubricants should be regularly replenished and replaced.
Check the operation: During the operation of the bearing, the operation of the bearing should be regularly checked, including temperature, vibration, and noise. If any abnormal situation is found, the machine should be stopped immediately for inspection and troubleshooting.
Control load: Four point contact bearings have high load-bearing capacity, but should avoid exceeding their rated load. During operation, the radial and axial loads borne by the bearings should be reasonably controlled to ensure their normal operation and extend their service life.
3、 Maintenance
Cleaning: Regularly clean the bearings and bearing seats, remove surface dirt and grease, and keep them clean and dry. During the cleaning process, appropriate cleaning agents and tools should be used to avoid damaging the accuracy and surface quality of the bearings.
Check the wear condition: Regularly inspect the wear condition of the bearings, including the raceways, steel balls, and retainers of the inner and outer rings. If severely worn or damaged components are found, they should be replaced in a timely manner to ensure the normal operation of the bearings.
Replace bearings: When bearings reach their service life or cannot continue to operate normally, they should be replaced with new bearings in a timely manner. During the replacement process, the correct installation method and steps should be followed to ensure the correct installation and positioning of the new bearing.
matters needing attention
When installing and disassembling bearings, appropriate tools and methods should be used to avoid damaging the accuracy and surface quality of the bearings.
During operation, excessive impact and vibration on the bearings should be avoided to avoid affecting their performance and lifespan.
When storing bearings, they should be placed in a dry, ventilated, and dark environment to avoid moisture, heat, and corrosion.
In short, the use of four point contact bearings requires following the correct installation, operation, and maintenance steps and precautions to ensure the normal operation and extended service life of the bearings.