Ball Screw Drive

Ball Screw Drive is a precision mechanical transmission device that efficiently converts rotational motion into linear motion. It consists of ball screws, nuts, balls, circulation mechanisms, and auxiliary components such as support bearings and dust covers. Ball Screw Drive is widely used in fields such as CNC machine tools, robots, precision instruments, aerospace equipment, etc.

Ball Screw Drive's working principle is based on rolling friction: the surface of the screw shaft is machined with precise spiral raceways, and there are corresponding spiral grooves inside the nut, with balls filling the gap between the two raceways. When the motor drives the screw to rotate (or the nut is driven to rotate by external force), the ball rolls along the spiral raceway and pushes the nut (or screw) to make linear motion in the axial direction through rolling friction. The circulation mechanism guides the ball to return from the end of the raceway to the starting end, forming a closed cycle to ensure continuous and uninterrupted motion.

Compared with traditional sliding screw transmission, Ball Screw Drive has significant advantages. Firstly, it is high efficiency. The transmission efficiency of sliding friction is usually only 20% -40%, while ball screws rely on rolling friction to achieve an efficiency of over 90%, greatly reducing power loss and suitable for high-speed and high-frequency motion scenarios. Second is high precision. Through precision grinding, its positioning accuracy can be controlled at the micrometer level, with minimal repeat positioning error, which can meet the requirements of precision feed and positioning. In addition, Ball Screw Drive has low wear and long service life, and rolling friction reduces direct wear between parts. Combined with lubrication system, it can significantly extend the service life.

Here In this page, we introduce series of Linear Ball Screws, you will see data sheet, production pictures,videos of test as follows:

Also You are welcome to watch more projects or visit our video gallery by Youtube: https://www.youtube.com/@tallmanrobotics

Testing Videos of Ball Screws from TallMan Robotics:

Pictures of Packing and Delivery for Ball Screws from TallMan Robotics:

According to application requirements, Ball Screw Drive can be divided into different types: external circulation (simple structure, low cost) and internal circulation (high precision, low noise) according to the circulation mode; According to the accuracy level, it is divided into C level, D level, E level, etc., corresponding to different lead error ranges; According to the pre tightening method, it can be divided into single nut without pre tightening, double nut pre tightening, etc., used to eliminate axial clearance and improve rigidity.

In practical applications, it is necessary to select a Ball Screw Drive with appropriate parameters based on the load size, operating speed, and positioning accuracy requirements. At the same time, attention should be paid to parallelism calibration, axial clearance adjustment, and regular maintenance during installation to ensure its long-term stable operation. As the core transmission component of modern industrial automation, Ball Screw Drive provides key technical support for precision manufacturing and automation control.