What are the functions of plastic cages?

In the precision world of bearings, there is a component that seems unremarkable yet is crucial — the cage. As a key part within the bearing, its performance directly affects the operating efficiency and service life of the bearing.

Behind the Scenes of Bearing Operation

As an internal accessory of the bearing, the cage undertakes three key missions.

1.Ensure the rolling trajectory

First, it can accurately guide and drive the rolling elements to roll on the correct raceway, just like laying an exclusive track for the rolling elements, ensuring that they run smoothly along the established trajectory.

2.Reduce friction loss

Second, it separates the rolling elements at equal distances and distributes them evenly on the circumference of the raceway, effectively preventing the rolling elements from colliding and rubbing against each other during operation, reducing energy loss, and extending the service life of the bearing.

3.Avoid parts falling off

Thirdly, in separable bearings, the cage can combine the rolling elements with one of the rings, preventing the rolling elements from falling off and ensuring the stable operation of the bearing.

Decrypting behind the cage

The "window" of a bearing is the cage, which assumes the important responsibility of separating and guiding the rolling elements. The pocket clearance provides a certain amount of movement space for the cage in the radial and axial directions, and the total radial movement is called the cage clearance. The cages produced by Wuxi Zhongtian Plastic Cage Manufacturing Co., Ltd. have various structural types and complex and diverse shapes. There are many equidistant pockets distributed on the cage, and the shapes of the pockets include spherical, circular, elliptical, rectangular, and toothed, etc. The size of the pocket is larger than that of the rolling element, and the difference between the two is the pocket clearance. In addition, the connecting part between the windows of the roller cage is called the crossbeam, which not only plays a connecting role but also increases the strength of the cage, making the cage more stable and reliable during operation.

The preferred product for silent operation

In the large family of cages, metal cages and plastic cages have different applicable occasions. One important reason is that there is a significant difference in their noise performance during operation. Metal cages generate relatively high noise during operation, while plastic cages can achieve low-noise operation. Wuxi Zhongtian Plastic Cage Manufacturing Co., Ltd. specializes in the research, development and manufacturing of plastic cages. With advanced technology and exquisite craftsmanship, the plastic cages produced by the company not only ensure stable performance but also effectively reduce operating noise, providing strong support for the silent operation of various equipment and becoming an ideal choice in many fields.

Whether in the precision machinery, automobile manufacturing, or home appliance industries, the products of Wuxi Zhongtian Plastic Cage Manufacturing Co., Ltd. ensure the efficient operation of bearings with their excellent performance and reliable quality. Choosing Zhongtian plastic cages can make your equipment run more smoothly, quietly, and last longer.