How do ball screw bearings work?

1. Structural composition
The main structures of ball screw bearings include screws, nuts and balls. The screw is usually made of high-strength alloy steel or stainless steel, with precise threaded tracks cut into the surface to guide the movement of the nut. The threads inside the nut match the threads of the screw to ensure smooth rolling of the balls between them. Balls are the key component connecting the screw and nut. They are usually made of high-strength steel. Their size and number are determined according to the specifications and load requirements of the ball screw bearing.

2. Ball motion
The working principle of ball screw bearings is based on rolling motion. As the screw rotates, the balls on the threaded track roll within the track due to their own rotation. This rolling motion causes the nut to move axially along the screw, thereby achieving axial linear motion. Compared with traditional screw drives, ball screw bearings can significantly reduce frictional resistance and energy loss due to the use of rolling friction instead of sliding friction, so they have higher transmission efficiency and lower heat generation.

3. High-efficiency transmission
Ball screw bearings are suitable for applications requiring high precision and high speed linear motion. Its design and manufacturing precision are high, and it can maintain high transmission efficiency and stability under high-speed rotation and load conditions. This makes it an indispensable key component in industrial automation, CNC machine tools, precision instruments and other fields. For example, in CNC machine tools, ball screw bearings are used to drive precise movements of the X, Y, and Z axes to ensure high precision and stability of machined parts.

4. Self-locking performance
Ball screw bearings have good self-locking properties, which means that when no external force is applied, the nut will not move spontaneously and can stably maintain the position reached. This feature is particularly important for applications that require vertical or long-term maintenance of a fixed position, such as in robot joint transmission, ensuring precise control and stability of each joint position.

5. Application scope
Ball screw bearings are widely used in industrial and mechanical equipment that require high precision, high load transfer and long life. They are used in spindle drives of machine tools, moving parts of CNC machine tools, positioning systems of printing equipment, X and Y axis drives of laser cutting machines, etc. Its excellent transmission efficiency and stability make the production process more efficient and reliable, while reducing maintenance costs and machine downtime.

30TAC62BTN SU-Super rigid, super sealed, long life ball screw bearings

Ball screw bearings, the series of bearings contact angle of 60 degrees, and the number of steel balls increased to further improve the axial rigidity of the bearing, in the two end faces can be increased when the contact seal, to further improve the sealing effect of the bearing in the machine tool, can effectively reduce the risk of entering the impurities and extend the service life of the bearing. Cage main glass fiber reinforced nylon cage (nylon). The series of bearings are mainly used in various industrial equipment and precision instruments such as filament bars, die sets and support seats.