How does a ball bearing work? How to choose grease from RenhotecIC?

 

Ball bearings are also a type of rolling bearings.

 

The main construction elements are: balls, inner ring, outer ring and retainer.

 

The working principle is to install the spherical alloy steel ball in the middle of the inner steel ring and the outer steel ring to reduce the friction force of power transmission and improve the transmission efficiency of mechanical power by rolling.

 

Balls can effectively reduce the friction between the bearing surfaces, thereby increasing the service life of the bearing.

 

Due to its design and working principle, it is determined that it cannot bear large heavy loads, and it is generally used in light industrial machinery. Because the bearing area of the ball bearing is small, it is very easy to cause serious mechanical damage under the condition of high-speed operation, so the lubrication work is extremely important.

 

According to the existing statistical data on the causes of bearing damage, about 40% of the causes of ball bearing damage are related to poor lubrication.

 

The selection of suitable lubricating grease for ball bearings can play a very important positive role in the life of the bearing, temperature rise, friction, vibration, and even in the rust prevention, heat dissipation, buffering, and sealing of the bearing.

 

Generally speaking, rolling bearing grease is a lubricant developed from mineral base oil, thickener, and additives such as anti-oxidation and anti-rust.

 

When selecting rolling bearing grease, the following characteristics can be considered:

 

1. Excellent water resistance and corrosion resistance;

 

2. Good bearing capacity, vibration reduction performance and sealing effect;

 

3. Play an anti-wear protection: the parts in contact with each other reduce friction and wear.

 

4. It can maintain good grease structure characteristics and prolong the bearing life.

 

5. Anti-rust performance, which can prevent the corrosion of the bearing during operation;

 

6. Noise reduction, can effectively improve the vibration performance of the bearing.

 

7. Prevent the bearing from overheating and prevent the lubricating oil itself from aging.