1. Disassembly and assembly of the bearing The bearing should be cleaned before installation. During installation, special tools should be used to press the auxiliary bearing straight and evenly. Do not hit it with a hammer. It is especially prohibited to hit directly on the bearing. When the bearing seat ring and seat hole are loosely matched, the seat hole should be repaired or the bearing replaced. Do not use pitting or copper padding on the bearing mating surface to force it. When disassembling the bearing, use a suitable puller to pull the bearing out. Do not hit the bearing with a chisel, hand hammer, etc.

2. Bearing lubrication Lubricants and greases are commonly used as lubricants for ball bearings. When the peripheral speed of the shaft is less than 4-5m / s, or the parts of the car that cannot be lubricated with lubricating oil are lubricated with grease. The advantage of grease lubrication is that the sealing structure is simple, the grease is not easy to lose, and it is not affected by temperature. It can be used for a long time by adding grease once.