①The end face of rolling bearing marked with code should be installed in the visible direction, so as to check when replacing.

② The circular radius at the step of the journal or shell hole should be less than the corresponding circular radius on the bearing.

③ After the bearing is assembled on the shaft and in the hole of the shell, there should be no skew phenomenon.

④ in the two coaxial bearings, there must be one with the thermal expansion of the shaft shaft movement.

⑤ When assembling rolling bearings, dirt must be strictly prevented from entering the bearing.

⑥ After assembly, the bearing must operate flexibly, the noise is low, and the working temperature should not exceed 65℃.

2.Insatallment methods

When assembling bearings, the most basic requirement is to make the added axial force act directly on the end face of the bearing ring (when mounted on the shaft, the added axial force should act directly on the inner ring, when mounted on the hole, the added force should act directly on the outer ring). Try not to affect the rolling body. The methods of assembly include hammering, press assembly, hot assembly, freezing assembly and so on.

① hammer method

Use a hammer to pad the purple copper rod and some soft materials and then hammer the method, we should pay attention to not make the copper end and other foreign bodies fall into the bearing raceway, do not directly use a hammer or punch cylinder directly beat the inner and outer ring of the bearing, so as not to affect the bearing matching accuracy or cause bearing damage.

②Screw press or hydraulic press assembly method

For bearings with large interference tolerance, they can be assembled by screw press or hydraulic press. Before pressing, the shaft and bearing should be flat, and coated with a little lubricating oil. The speed of pressing should not be too fast. After the bearing is in place, the pressure should be removed quickly to prevent damage to the bearing or shaft.

③ hot pack

The thermal loading method is to heat the bearing in oil to 80℃-100℃, so that the inner hole of the bearing is enlarged and fitted to the shaft, which can prevent the shaft and bearing from damage. For the bearing with dust cover and sealing ring, the bearing with grease inside is not suitable for hot loading.

3. The clearance of tapered roller bearings is adjusted after assembly. The main methods are gasket adjustment, screw adjustment, nut adjustment, etc.

4. When assembling thrust ball bearings, the tight ring and loose ring should be distinguished first. The inner diameter of the tight ring is slightly smaller. After assembly, the tight ring and the shaft remain relatively static at work, and it always depends on the step or hole end face of the shaft.

If you have any questions,pls feel free to contact us

e-mail:bearing6@hyzcgroup.com