After reading this wave of bearing knowledge, you will become an "expert"!

Bearing is an important part of contemporary machinery and equipment, the rapid development of China's bearing industry, bearing varieties from less to more, product quality and technical level from low to high, industry scale from small to large, has formed a basic complete product categories, production layout is more reasonable professional production system. However, how much do you know about bearings? Today, let's learn with Xiaobian

What are the functions of the 5 big items?

The inner ring is usually fitted tightly with the shaft and rotates with the shaft.

The outer ring is usually matched with the bearing seat hole or the mechanical part housing to play a supporting role. However, in some applications, there are also outer ring rotation, inner ring fixed, or both inner and outer rings rotating.

The rolling element is evenly arranged between the inner ring and the outer ring by means of the cage. Its shape, size and quantity directly affect the bearing capacity and performance.

The cage will evenly separate the rolling body, guide the rolling body to move on the correct track, improve the load distribution and lubrication performance inside the bearing.

⑤ Used for the friction part of the machine, plays a lubricating and sealing role. It is also used on metal surfaces to fill voids and prevent rust.

Five major parts and their composition principle

Bearing ring ▶ Bearing ring structure

1. inner ring

Bearing rings on the outer surface of the raceway.

2. outer ring

Bearing rings on the inner surface of the raceway.

3. cone

Inner ring of tapered roller bearing.

4. cup

Tapered roller bearing outer ring.

5. double cone

Tapered roller bearing inner ring with double raceway.

6. double cup

Tapered roller bearing outer ring with double raceway.

7. extended inner ring

The bearing inner ring is widened at one or both ends in order to improve the guiding position of the shaft in its inner hole or to provide supplementary placement for mounting fasteners or seals.

8. stepped inner ring

A groove ball bearing inner ring with the shoulder completely or partially removed.

9. counterbored outer ring

A groove ball bearing outer ring with the shoulder completely or partially removed.

10. drawn cup

A ring stamped by a thin metal plate, sealed at one end (sealed stamping outer ring) or open at both ends, generally pointing to the outer ring of a needle roller bearing.

11. flanged outer ring

Flange bearing outer ring.

12. aligning outer ring

The outer ring has a spherical outer surface to accommodate the permanent angular displacement between the axis line and the axis line of the bearing seat.

13. aligning housing ring

A ferring for aligning the outer ring and the seat hole has a spherical inner surface matching the spherical outer surface of the outer ring.

14. spherical outside surface

The outer surface of the bearing outer ring is a part of the ball surface.

15. cup front face rib

A guard on the front of the tapered outer raceway to guide the roller and to withstand the thrust of the large end of the roller.

16. centre rib

Bearing rings with double raceways, such as the middle integral flange of the double raceway cone inner ring.