How rolling bearings work?

Bearings are an important part of contemporary machinery and equipment. They play a vital role in mechanical design. They are known as the "joints" of machines and are widely used in mechanical products in all walks of life.

The role of rolling bearings

1. The main function of rolling bearings

(1) Reduce friction

(2) Bear the load

(3) Transmission guide

2. Differences between ball bearings and roller bearings

The difference between these two types of bearings is the contact form of the rolling elements, ball bearings are point contact, roller bearings are line contact.

Since friction increases or decreases with the type of contact, ball bearings are best suited for heavier loads and higher speeds, while roller bearings are used for heavier loads and lower speeds.

3. Load carrying capacity of rolling bearings

The load capacity is the first factor to confirm the bearing size. Ball bearings are usually used for light or medium loads, for heavier loads, roller bearings with larger diameters are more suitable.

How rolling bearings work?

A rolling bearing is a precise mechanical element that converts the sliding friction between the running shaft and the shaft seat into rolling friction, thereby reducing friction loss.

Rolling bearings are generally composed of four parts: inner ring, outer ring, rolling elements and cage.

The function of the inner ring is to cooperate with and rotate with the shaft; the function of the outer ring is to cooperate with the bearing seat and play a supporting role; the rolling elements are evenly distributed between the inner ring and the outer ring by means of the cage, Its shape, size and quantity directly affect the performance and life of the rolling bearing; the cage can make the rolling elements evenly distributed and guide the rolling elements to rotate for lubrication.