How are the balls of bearings made?

Ball bearing is a kind of rolling bearing. Spherical alloy steel balls are installed between the inner steel ring and the outer steel ring to reduce the friction in the process of power transmission and improve the transmission efficiency of mechanical power. Ball bearings cannot bear heavy loads, so they are very common in light industrial machinery. Ball bearings are also called ball bearings.

Production technology:

1. embryo making: various spherical blanks are made by various technological methods.

2. Rough grinding: putting the spherical blank into the upper and lower grinding discs with concentric annular grinding grooves with the same size and triangular cross section, and adding oil and coarse abrasive; The upper grinding disc rotates while the lower grinding disc does not move. The above ball mill is called a rough mill. According to the need, there can be more than one rough grinding.

3. Cleaning: After each rough grinding, the oil stain and coarse abrasive residue stuck on the ball surface should be cleaned.

4. Fine grinding: putting the coarse grinding blank into a fine grinding machine; Adding low viscosity oil and fine abrasive, and grinding to standard size;

5. Polishing: The process is similar to rough grinding and fine grinding.

Ball bearings are generally used for low-load mechanical transmission equipment. Because the bearing area of ball bearing is small, it is easy to cause serious mechanical damage under the condition of high-speed operation, so needle bearing is often used in heavy-duty mechanical transmission to increase bearing surface, improve mechanical transmission efficiency and reduce mechanical damage.

Ball bearing changes the friction mode of bearing, and adopts rolling friction, which effectively reduces the friction phenomenon between bearing surfaces, effectively improves the service life of fan bearing, and thus prolongs the service life of radiator. The disadvantage is that the process is more complicated, resulting in higher cost and higher working noise.