Rolling bearing has two kinds of structure with and without cage. Large bearings are generally required to withstand large loads, it is possible to not with cage, but in the inner and outer raceway filled with rolling elements. But: most small and medium-sized rolling bearings are with cage, the main role of the cage is:

The bearing cage separates the rolling elements at equal distances and spreads them evenly around the circumference of the raceway to prevent the rolling elements from colliding and rubbing against each other;

Guide and drive the rolling body on the correct raceway;

The bearing cage space can store grease;

In separating types of bearings, the cage can combine the rolling element and the collar to prevent the rolling element from falling out.

Nylon bearing cages have low vibration, low noise, low heat generation, high load carrying capacity, which can improve the limiting speed and life of bearings, and usually can work stably for a long time in the temperature range of -40℃ to +80℃, and have compatibility with bearing lubricants, nylon bearing cages are suitable for electric motors, machine tools, gear transmission shafts, pumps, compressors and other fields.

Nowadays, nylon bearing cages are used more and more, so what are its advantages?

The nylon cage of bearings is a new generation of products to replace the copper cage and iron cage, which has many advantages compared with the metal cage:

First, it is light in weight, which improves the flexibility of the bearings, and if it is used in electrical appliances or energy-consuming products, it has a great effect on energy saving.

Second, it is light in weight, bearing in the rotation process, the centrifugal force generated by itself is relatively small, more suitable for high-speed working conditions.

Thirdly, it has low noise, which is the first choice for manufacturing silent bearings, especially for electrical appliances with high noise requirements, nylon cages are the first to be chosen.

Fourthly, it has low friction, which can effectively extend the service life of the bearings. The friction of nylon cage on rolling body is lower than the friction of metal cage on steel ball, which greatly extends the service life of the bearings.

Fifth, it is simple to manufacture, greatly improving production efficiency and reducing production costs.

Although nylon cages have so many advantages, there are also many disadvantages in the process of bearing use, mainly:

Nylon bearing cage bearings can only be operated at room temperature.

The compressive strength of nylon bearing cages is not as high as that of sheet metal cages, and the capacity of the load is not as high.

Nylon bearing cage bearings can not be used in the corrosive effect on its environment to use.

In short, the bearing metal cage and nylon cage have their own advantages and disadvantages, in the choice according to the use of requirements, such as the requirements of low-noise electrical appliances to use, we must choose nylon cage bearings. In the high temperature, load, vibration equipment, give preference to pressed steel cage.