PRODUCT
FAG angular contact ball bearing of clean, install and remove
by:Waxing
2020-10-22
FAG bearings is combination of supporting shaft rotation.
The ring and roller are machined.
Angular contact ball bearing, before they go out in order to protect the surface of raceway and rolling element is not rust, between the raceway and rolling body injected with anti-rust oil or antirust grease.
So the bearings before installation should be clean.
Use anti-rust oil seal bearing can use petrol or kerosene directly cleaning;
Or antirust oil in thick oil rust must be with light mineral oil, such as 10 # transformer oil heating oil or grease to melt cools, then clean with gasoline or kerosene.
On both sides with dust cover or seal bearing, has joined the grease before they go out, so don't have to clean when install.
Coated with antirust lubrication and oil of angular contact ball bearing, installation also does not need cleaning.
In the process of cleaning installation, should be protected from alien invaders into the bearing, caused by a tiny particle will wear between roller and raceway, noise and vibration.
FAG bearings mainly through two ways of.
One is to press the ring can be made into shaft or pressed into the bearing hole;
One is a large diameter by heating bearing up, or cooling bearing outside diameter smaller, the angular contact ball bearing mounted on a shaft or easily push the seat hole.
When using pressure mode, mechanical force or fluid pressure through special device will direct the force ACTS on comes down on the seat, never allow loading and unloading force through the transfer roller.
Otherwise it will cause of raceway and rolling body surface indentation, increasing the noise and vibration that cause damage.
If the heating or cooling method, the installation should strictly control the heating or cooling temperature.
Because work FAG bearing strength by the metal surface microstructure on the surface of the structure, the influence of temperature is too high will cause the tempering effect;
Temperature bottom will cause on the surface of the metal embrittlement.
Usually heating temperature shall not exceed 100 ℃, the lowest cooling temperature shall not end at 50 ℃ below zero.
Should also consider heat evenly.
Practice has proved that FAG bearing improper installation is one of the causes of premature bearing damage.
And the interference with the installation of the ring is a very difficult thing, so in the design of bearing, angular contact ball bearing must be considered how to problems and is convenient for installation.
For heavy machinery of large bearing often need to design special equipment installation.
Corresponding design is needed if high pressure oil removing oil, pipeline and pump, etc.
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