The role of rolling bearings

Bearing is an important part of contemporary mechanical equipment, has a vital role in mechanical design, known as the "joint" of the machine, widely used in mechanical products in all walks of life.

1. The main role of rolling bearings

(1) Reduce friction

(2) Bear the load

(3) drive guidance

2. The difference between ball bearings and roller bearings

The difference between these two types of bearings lies in the contact form of the rolling body. The ball bearing is point contact, and the roller bearing is line contact.

Because friction is increased or decreased with different contact forms, ball bearings are most suitable for higher load and higher speed, while roller bearings are suitable for heavier load and lower speed applications.

3. Load bearing capacity of rolling bearings

Bearing capacity is the first factor to confirm bearing size (size). Normally, the bearing capacity of roller bearings of the same size is higher than that of ball bearings, and the bearing capacity of full roller bearings is higher than that of roller bearings with cages.

Ball bearings are usually used in light or medium loads, and for heavier loads, roller bearings with larger diameters are more suitable.