Q&a about spherical roller bearing installation

TAG: roller beari ese ball bea | author:赛美瑞 | VISITORS: | source:未知
1, the installed on surface and the place has a requirement?
If spherical roller bearing with iron filings, burr, dust and other foreign bodies, will make the bearing noise and vibration during operation, and even damage raceway and rolling body.So before installation, must ensure that the installation surface and the environment clean.
2, bearing must be cleaned before installed?
Bearing surface coated with anti-rust oil, must use clean petrol or kerosene cleaning carefully, then coated with clean, high quality or high speed high temperature lubricating grease before installation (totally enclosed bearing don't have to clean the oil).Cleanliness of bearing life and the influence of vibration noise is very big.
3, how to select grease?
Grease made out of base oil, thickener and additive, different types and different type of same kind grease properties vary widely, allowing the rotation of the limit, when the choice is important to note.
The performance of the grease is mainly determined by the base oil.The basis of generally low viscosity oil is suitable for low temperature, high speed;High viscosity is suitable for high temperature, high load.Thickener and relationship with lubrication performance, thickening agent, water resistance to the water resistance of the grease.In principle, different brand of grease can not mix.
4, when lubricated bearing, oil paint, the more the better?
Lubricated bearing, oil paint, the better, this is a common mistake.Spherical roller bearings and bearing indoor excessive grease will cause excessive oil mixing, resulting in a high temperature.
5, how to install and disassemble?
Installation, don't directly hammer spherical roller bearing end face and the bearing surface, should be to press, sleeve or other installation tools for uniform bearing force.If the installation surface coated with lubricating oil, will make the installation more smoothly.If the interference fit is larger, should put the bearing into the mineral oil heating to 90 ~ 100 ℃ in immediately after installation.When removing difficulties, it is recommended that you use the disassembly tool to pull at the same time to the inner ring carefully labor hot oil, heat can make the bearing inner ring expansion, making it easier to fall off.
Spherical roller bearings installed correctly or not, is not only related to the machine can run normally, but also in the service life of bearing are closely related.So, to install the operator of the spherical roller bearing, must understand the above problem, especially for the first operating personnel is particularly important.I think, as long as everyone can in strict accordance with the procedures, pay attention to matters needing attention, then install will not have too much of an issue.