Thin walled bearings, as the name suggests, are bearing products that have an extremely thin bearing cross-section, thereby achieving miniaturization, lightweight, and expanding their range of applications. According to the different sealing methods, thin-walled bearings are generally divided into: rubber seal RS, iron seal ZZ, flat, iron card K, copper card M, etc.

In order to obtain the low friction torque, high rigidity, and good rotational accuracy of thin-walled bearings, thin-walled bearings use small outer diameter steel balls, and the use of hollow shafts also ensures lightweight and wiring space. In order to ensure the normal functioning of bearings, thin-walled bearings generally use grease lubrication and oil lubrication in lubrication, with the aim of reducing internal friction and wear of the bearings, preventing overheating of the bearings, as well as preventing foreign objects from invading the bearings, or preventing rust and corrosion, in order to extend the service life of the bearings. During use, if the rolling contact surface is well lubricated, the service life will be extended; On the contrary, if the viscosity of the oil is low and the thickness of the lubricating oil film is not good, the service life will be shortened.

The precision required for thin-walled ball bearings is very high. Due to their thin walls, the weight they can carry is also very low, and their impact resistance is poor. Therefore, it is necessary to make a good choice based on the usage environment!

Thin walled ball bearings have a simple structure and are convenient to use. Mainly used to withstand radial loads, but when the radial clearance of the bearing is increased, it has certain performance of angular contact ball bearings and can withstand combined radial and axial loads. When the rotational speed is high and thrust ball bearings are not suitable, they can also be used to withstand pure axial loads. Compared with other types of bearings of the same size, this type of bearing has a small coefficient of friction and a high speed limit. But it is not resistant to impact and is not suitable for bearing heavy loads. Equal section thin-walled bearing is a type of bearing with a special section width and thickness; The same cross-sectional size can match many different bearing inner diameters; Compared to standard bearings, the width and thickness increase proportionally with the increase of the bearing inner diameter, while thin-walled bearings with equal cross-section increase the inner diameter and maintain the same cross-sectional size.

The combination of 9 cross-sectional sizes (from 3/16 inches to 1 inch) and inner diameter sizes (from 1 inch to 40 inches) of the thin-walled bearing series products will produce many "thin" standard bearings with small cross-sections and large apertures. Thin walled bearing materials such as 52100 chromium steel and 440C stainless steel can also be plated with a thin chromium layer. Many models can be equipped with seals or dust covers. There are three different types of thin-walled bearings; Deep groove ball bearings, angular contact ball bearings, and four point contact ball bearings. Compared to standard bearings, thin-walled bearings can more effectively optimize system design and reduce total costs. These three structural types, combined with different rollers and cage types, can create various thin-walled bearing products based on limited cross-sectional dimensions. Due to the fact that the cross-sectional size of the thin-walled shaft does not change with the inner diameter, the installation space requirement remains unchanged, with only a slight change in weight with the inner diameter.

Especially in the fields of medical equipment, optical equipment, infrared scanning equipment, robots, etc., installation space and weight are factors to consider in terms of overall design and manufacturing costs. In many cases, even though the market price of thin-walled bearings is higher than that of standard bearings with similar apertures, thin-walled bearings can reduce installation space and weight, which can save a lot of costs in system design and application.