SKF bearings must be installed under dry and clean environmental conditions. Before installation, carefully check the machining quality of the mating surface of the shaft and housing, the end face of the shoulder, the groove and the connecting surface. All mating connection surfaces must be carefully cleaned and deburred, and the unprocessed surface of the casting must be cleaned of molding sand.
SKF bearings shall be cleaned with gasoline or kerosene before Skf Bearing Installed installation, and used after drying, and good lubrication shall be ensured. SKF bearings are generally lubricated with grease or oil. When grease lubrication is used, grease with excellent properties such as no impurities, oxidation resistance, rust prevention and extreme pressure shall be selected.
The filling amount of lubricating grease shall be 30% – 60% of the volume of bearing and bearing box, and shall not be too much. Double Skf Bearing Installed row tapered roller bearing with sealing structure and water pump shaft connecting bearing have been filled with grease, which can be used directly by users and can not be cleaned.
During the installation of SKF Bearing, equal pressure must be applied on the circumference of the ferrule end face to press the ferrule in. It is not allowed to directly knock the bearing end Skf Bearing Installed face with hammer and other tools to avoid damaging the bearing.
Under the condition of small interference, the end face of SKF Bearing ring can be pressed with a sleeve at room temperature, the sleeve can be knocked with a Skf Bearing Installed hammer, and the ring can be pressed in evenly through the sleeve. In case of mass installation, hydraulic press can be used.
When pressing in, ensure that the end face of the outer ring and the end face of the housing shoulder, and Skf Bearing Installed the end face of the inner ring and the end face of the shaft shoulder are pressed tightly without clearance.
When the interference is large, the SKF Bearing can be installed by oil bath heating or inductor heating. The heating temperature range is 80 ℃ – 100 ℃, and the height cannot exceed 120 ℃. At the same time, the SKF Bearing shall be fastened with nuts or other appropriate methods to prevent the gap between the ferrule and the shaft shoulder due to the shrinkage in the width direction after the bearing is cooled.
The clearance of single row tapered roller bearing shall be adjusted after installation. The clearance value shall be determined according to different service conditions and the interference of the fit. If necessary, tests shall be carried out to determine. The clearance of double row tapered roller bearing and water pump shaft connected SKF Bearing has been adjusted at the factory, so it is not necessary to adjust it during installation.
After the SKF Bearing is installed, the rotation test shall be carried out. First, it shall be used for the rotating shaft or SKF Bearing Box. If there is no Skf Bearing Installed abnormality, it shall be operated at no-load and low speed with power, and then gradually increase the rotation speed and load according to the operation situation,
and detect the noise, vibration and temperature rise. If any abnormality is found, the operation shall be stopped and checked. It can be delivered for Skf Bearing Installed use only after the operation test is normal.
Cleaning of SKF Bearing: when disassembling the lower bearing for maintenance, first record the appearance of SKF Bearing, confirm the residual amount of lubricant, and wash SKF Bearing after sampling the lubricant for inspection.
As a cleaning agent, gasoline and kerosene are commonly used. The SKF Bearing removed shall be cleaned in coarse cleaning and fine cleaning. They shall be placed in the container respectively, and the metal mesh pad shall be placed at the bottom first, so that the bearing will not directly contact the dirt of the container. During rough cleaning, if SKF Bearing rotates with dirt, it will damage the rolling surface of the bearing, which should be paid attention to.
In the coarse cleaning oil, use a brush to remove the grease and adhesion. After it is roughly clean, turn to fine cleaning. Fine cleaning is to carefully clean the SKF Bearing while rotating in the cleaning oil. In addition, the cleaning oil should also be kept clean.