The four point contact bearing, as a high-precision and high-performance separable bearing, its usage precautions are crucial to ensure its normal operation and extend its service life. The following is a detailed explanation of the precautions for using four point contact bearings:
1、 Preparation before installation
Check bearings: Before installation, carefully inspect the model, specifications, and appearance of the bearings to ensure that they are free from defects such as damage, cracks, and rust. At the same time, check whether the clearance of the bearing meets the requirements, as excessive clearance can affect the rotational accuracy and stability of the bearing.
Preheating treatment: For large or difficult to install bearings, it is recommended to perform preheating treatment. Heat the bearing to an appropriate temperature (such as 120 ℃) and maintain it for a certain period of time (such as 30 minutes) to improve installation efficiency and the fit between the bearing and the shaft or hole.
2、 Installation process
Maintain concentricity: During installation, ensure the concentricity between the bearing and the shaft or hole to avoid uneven bearing force caused by installation deviation, which may affect its service life.
Correct installation of inner and outer rings: The inner (or outer) ring of a four point contact bearing is precisely assembled from two and a half rings. During installation, it should be ensured that the two and a half rings are correctly assembled and tightened in place.
Adjustment of compression: Use tools such as adjustment sleeves to adjust the compression, so that the inner ring of the bearing is tightly attached to the end face of the pad, ensuring a tight fit between the inner ring of the bearing and the shaft, while avoiding bearing damage caused by over tightening.
3、 Precautions during use
Avoid overload: Although four point contact bearings have high load-bearing capacity, they should be avoided from exceeding their rated load during use to avoid bearing damage or shortened service life.
Regular inspection: Regularly check the operating status of bearings, including observing for any abnormal noise, high temperature, or other adverse phenomena. Once abnormalities are detected, the machine should be shut down promptly for inspection and problem-solving.
Lubrication and maintenance: Ensure sufficient lubrication of the bearing parts and follow the lubrication recommendations provided by the manufacturer. The replacement cycle of lubricating oil should be determined based on actual operating conditions, and in general, it should be replaced regularly to ensure the normal operation of bearings.
Cleaning and dust prevention: Keep the area around the bearing clean to prevent debris from entering the interior of the bearing. Regularly clean the oil and dust in the bearing area, and install dust-proof devices in the bearing area to reduce dust from entering the interior of the bearing.
Temperature monitoring: Install temperature sensors to monitor the temperature of the bearing in real-time. Once abnormal high temperatures are detected, immediate measures should be taken to solve the problem to prevent bearing overheating and damage.
4、 Other precautions
Avoid impact and vibration: During use, excessive impact and vibration on the bearings should be avoided to prevent damage to the bearings.
Proper storage: Bearings that are not used for a long time should be stored in a dry, ventilated, and non corrosive gas environment to avoid moisture or corrosion of the bearings.
In summary, the precautions for using four point contact bearings involve preparation before installation, installation process, precautions during use, and other details. Only by strictly following these precautions can the normal operation of the four point contact bearing be ensured and its service life be extended.