How to prevent high temperature bearings from rusting?

Update:31-08-2020
Summary:

1. Apply anti-rust oil to prevent high temperature bearing rust
2. Immersion method: Some small high-temperature bearings are immersed in anti-rust grease. The thickness of the oil film can be achieved by controlling the temperature or viscosity of the anti-rust grease. A method of sticking a layer of anti-rust grease on the surface.
3. Brushing method: When brushing, pay attention to evenly smear the surface of the high temperature bearing, not to accumulate, and to prevent leakage.
4. Spray method: some large anti-rust materials are not suitable for oiling by immersion method, generally use about 0.7Mpa pressure filtered compressed air to spray in clean air. The spray method is suitable for solvent-diluted anti-rust oil or thin-layer anti-rust oil. This method must adopt perfect fire prevention and labor protection measures.
Pretreatment method for rust on the surface of high temperature bearing:
1. Surface cleaning: cleaning must be combined with the properties of the high-temperature bearing surface and the current conditions. Commonly used methods include solvent cleaning, mechanical cleaning, and chemical treatment cleaning.
2. After the surface is dry and cleaned, it can be blown dry with filtered dry compressed air. Or use a dryer to dry at a temperature of 120~170℃, and finally wipe it dry with a clean gauze.
Doing a good job of overhauling and maintaining bearings in normal times will avoid many problems and extend the service life of bearings. Bearing corrosion is very common and it will reduce the life of the bearing. So everyone must pay attention to this issue in their daily work.