When using double row tapered roller bearings, the following precautions should be taken:
1. Choose the appropriate bearing: Firstly, it is necessary to choose the appropriate bearing type based on the actual application, such as single row, double row, and four row tapered roller bearings. At the same time, the size and load-bearing capacity of the bearings also need to be considered.
2. Correct installation of bearings: When installing, it is necessary to operate in a clean and dry environment, and ensure the machining quality of the mating surface between the bearing and the shaft and housing, the end face of the shoulder, the groove, and the connecting surface. During installation, equal pressure should be applied on the circumference of the ring end face, rather than directly striking the bearing end face. If the interference is large, oil bath heating or sensor heating method can be used to install the bearing. The heating temperature range is 80 ℃ -100 ℃, and the maximum cannot exceed 129 ℃.
3. Lubrication and cleaning: Bearings need to be lubricated regularly, with a grease filling amount of 30% -60% of the bearing and bearing box volume. When using, the bearings and their surroundings should be kept clean, and lubricants containing impurities and water should be avoided.
4. Adjust clearance and pre interference: If necessary, the clearance and pre interference can be adjusted by changing the thickness of the spacer to adapt to different working environments and needs.
5. Monitoring the operation status: Once the bearings are installed, regular rotation tests are required to detect noise, vibration, and temperature rise to determine whether the bearings are running well and promptly detect faults to avoid further damage.
6. Pay attention to maintenance and upkeep: In order to extend the service life of bearings, it is necessary to pay attention to maintenance and upkeep. For example, maintaining the cleanliness and lubrication of bearings, regularly checking the wear of bearings, and regularly replacing bearings to prevent malfunctions.
7. Choose appropriate materials: The materials used in double row tapered roller bearings, such as high purity steel, have a significant impact on the lifespan and performance of the bearings.
The above are the precautions to be taken when using double row tapered roller bearings. In daily use, attention should be paid to correctly operating and maintaining bearings according to the above requirements to ensure their long-term stable operation.