Bearing installation directly affects the quality of assembly and product quality, incorrect installation method will bury quality hidden trouble for assembly. The following examples illustrate the installation method of tapered roller bearing and water pump shaft bearing:

1. The bearing must be installed in a dry and clean environment. Before installation, carefully check the machining quality of the matching surface of the shaft and the shell, the end face of the shoulder, the groove and the connecting surface. All mating surfaces must be carefully cleaned and deburred, and molding sand must be removed from the rough surface of the casting.

2. The bearing should be cleaned with gasoline or kerosene before installation, and used after drying, and good lubrication should be ensured. Generally, the bearing is lubricated with grease or oil. When grease is used for lubrication, grease with no impurities, excellent anti-oxidation, anti rust and extreme pressure performance should be selected. The filling amount of lubricating grease should be 30% - 60% of the volume of bearing and bearing box, not too much. The double row tapered roller bearing with sealing structure and the shaft bearing of water pump have been filled with grease, which can be used directly by users and can not be cleaned any more. When installing the bearing, equal pressure must be applied on the circumference of the end face of the ring to press the ring in. It is not allowed to directly tap the end face of the bearing with tools such as a hammer to avoid damaging the bearing. 如果大批量安装时， 或者当过盈量较大时，可采用“状元”牌轴承感应加热轴承方法

In case of mass installation or large interference, the "Zhuangyuan" brand bearing induction heating bearing method can be used for installation. The heating temperature range is 80 ℃ - 100 ℃, and the maximum temperature can not exceed 120 ℃. The Zhuangyuan brand induction heater is evenly heated, and the inner ring expands equally. After heating, the hot sleeve assembly can be easily realized.

3. The clearance should be adjusted at the end of single row tapered roller bearing installation. The clearance value should be determined according to different working conditions and the size of interference. If necessary, it shall be determined by test. The clearance of double row tapered roller bearing and water pump shaft bearing has been adjusted before delivery, so it is not necessary to adjust them during installation. After the bearing is installed, the rotation test shall be carried out. First, it shall be used for the rotating shaft or bearing box. If there is no abnormality, it shall be operated at no load and low speed by power. Then, the rotation speed and load shall be gradually increased according to the operation condition, and the noise, vibration and temperature rise shall be detected. If any abnormality is found, the operation shall be stopped and checked. It can be put into use only after the operation test is normal. Zhuangyuan bearing heater finishing.