In order to make full use of the bearing and maintain its normal performance for a long time, it is necessary to carry out careful maintenance and regular inspection. The detection and prevention of accidents through proper periodic inspection is essential for improvement and economy. As long as the packing is not damaged, the quality of the bearing can be guaranteed. However, to long-term storage, it is recommended to store 30 cm above the ground, humidity less than 65% , temperature of about 20 °C on the shelf. Preferably, avoid direct sunlight or contact with cold walls. When the bearing is removed for inspection after cleaning, the appearance shall be recorded by means of photography, etc. . As far as possible before cleaning the bearing, confirm the remaining small number of preliminary samples for investigation. A. The bearings are cleaned by coarse and fine cleaning, and the Metal Mesh is placed at the bottom of the used container. "B. ". In the rough cleaning process, with a brush and so on to remove grease or grease. At this point, if the bearing in the oil rotation, then the rolling surface will be foreign body damage. "C. ". To complete the cleaning process, slowly and carefully rotate the bearings in the oil. Common detergents are neutral non-aqueous diesel or kerosene, sometimes using warm alkaline liquids as needed. No matter what kind of detergent is used, it should be filtered to keep it clean. After cleaning, immediately apply rust-proof oil or grease to the bearing. Check and judge in order to determine whether the disassembled bearings can be reused, please check the dimensional accuracy, rotation accuracy, internal clearance, fit surface, raceway surface. As large bearings can not be rotated by hand, attention should be paid to the rolling element, raceway surface and maintenance. The appearance of the frame and fixed edges. The advantage of bearings is that they require closer inspection. As for the result of the examination, it can be judged by the person who uses the conventional bearing or the skilled bearing. According to the mechanical properties, properties and Inspection Cycle, the judging criteria are different. If no damage is listed, the bearing can not be reapplied and has been replaced. Damage and defect of bearing parts. Rolling surface spalling of raceway surface. Bearing maintenance step 1, first off the wheel, remember to close the screw, will be very troublesome. 2. Remove bearing. Some wheels can be very tight, bearing is difficult to remove, just use the hex wrench to unscrew the screw wrench to force it down digging, please rest assured that the bearing is not easy to break. 3. Start by brushing the surface of the Perrin with a toothbrush. Don't do this, it's fine. 4, some bearing side cover is removable, some can not, first to determine whether the lining is removable. 5. If it's detachable, it's pretty simple. PRY Open the c-ring with a precision screwdriver at the notch of the C-RING, then remove the lower side cover. 6. If you can't move, it's even worse. We need to use destructive methods. Use a precision screwdriver to insert it into the seam of the side cover, and then pry up the side cover. Don't doubt it. That's it, but you can't put the side cover back. If one side is removed, both sides will be destroyed. Kill. Remove the initial cover of all bearings and begin cleaning. Pour the grease into a bowl, lower the bearing and stir.