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I am engaged in bearing sales and trade. I feel that selling bearings is much more complicated than selling mobile phones and clothes, and it requires a lot of professional knowledge.
First, the training of bearings actually belongs to the category of standard parts. You can search a lot in Baidu. You don't need anything professional. Baidu is a university hall.

Secondly, I have some information about ceramic bearings that you care about for your reference first. Introduction of ceramic bearings

Introduction of ceramic bearings

Hybrid ceramic bearings (that is, rolling bearings with metal inner and outer rings and high-tech ceramic silicon nitride (Si3N4) as rolling bodies)

The specific advantages are:

1, high speed

Due to relative sliding, wear and calorific value are greatly reduced, and the highest oil mist lubrication can reach 3.5 million DN, and the highest grease lubrication can reach 1.2 million DN.

2, long service life

In a proper working environment, the service life of ceramic bearings is 3 to 5 times that of all-steel bearings.

3. Self-lubrication

The unique self-lubricating function of ceramic bearing can make the bearing work normally even under the condition of poor lubrication or no lubrication.

4. Corrosion resistance

Ceramic bearings have excellent corrosion resistance, which makes them work normally in corrosive media.

5. High rigidity

The elastic modulus of ceramic materials is 50% higher than that of steel, which greatly improves the rigidity of bearings.

6, low friction torque

The friction of ceramic materials is small, and even in the case of marginal lubrication, the surface is still very smooth. Therefore, the friction resistance is small and the rotational friction torque is low.

7. Wear resistance

The hardness of ceramic materials is as high as Hv 1700, which greatly improves the wear resistance of bearings.

8. Lightweight

Ceramic materials are 60% lighter than steel, which greatly reduces the centrifugal force and the overall weight of bearings.

9, special performance

All ceramic parts are nonmagnetic and insulating.

Third, in fact, the development of these areas has different conditions. Of course, the variables are also great. There are opportunities everywhere. What you care about now is tolerance. So we shouldn't aim too far. Now do a good job. I think your learning spirit is worth learning! Finally, send a word to a friend. Where there is a will, there is a way!