The specific reasons for natural corrosion wear of bearings

The specific reasons for natural corrosion wear of bearings are mainly as follows:

1. Oxidation wear.

The tiny peaks and valleys on the friction surface crush each other so that the brittle surface gradually falls off and wears away. The tiny peaks and valleys on the surface of the relative movement of bearings are synthesized with oxidation in the air to form brittle oxides that are not well bonded with the base metal. The oxides are easy to fall off during friction, and the wear occurring is called oxidation wear.

2. Frictional thermal wear.

When the bearing works under the condition of high speed and heavy load and poor lubrication, high temperature, contact point hardness and wear resistance decrease due to friction at the peak and valley of the surface, and even adhesion and tearing occur. This wear is called frictional thermal wear.

3. Hard grain wear.

If the bearing is in relative motion. Bearing movement surface organization is not uniform, there are hard particles, or the movement of the surface of the bearing falls into sand, friction chips, chips and other impurities, bearing in relative motion, hard particles or impurities will make the bearing surface abrade or even form grooves, this wear is called hard grain wear.

4. pitting wear

Gear, bearings and other rolling contact surface, relatively in the process of periodic contact pressure, long time action, metal surface fatigue phenomenon, making the appearance of bearing tiny cracks and erosion, this wear is called pitting wear.

5. Wear and tear caused by rusting or corrosion

Bearing surface by acid, alkali, salt liquid or harmful gas erosion. Accelerate the wear process, this kind of wear is called chemical corrosion caused by wear.
Corrosion damage due to temporary contact with water, acid, alkali, salt and other liquids or harmful gases: non-moving bearings on equipment. To cause rust or corrosion to damage, called corrosion damage.