Ball screws and lead screws are mechanical linear actuators that are commonly used to translate rotary motion into linear motion and are usually used in CNC machines.
All screws serve the same motive of converting rotary motion into linear motion, they have distinct differences in their design, performance, and suitability for different types of applications.
Ball screws employ recirculating ball bearings to reduce friction and increase efficiency, whereas lead screws make use of helical threads and a nut to produce linear movement.
Lead screws are metal bars with threads as that of a traditional screw, and the relative motion between the screw and nut reasons the linear movement of the latter.

Ball screw is made of screw, nut and ball. The function is to turn the rotary movement into liner motion, which is a similarly extension and development of ball screw. The significance of this development is to move into a rolling bearing from sliding action; With little friction, ball screws are widely used in various industrial equipment and precision instruments.

Ball screws are machine elements that convert the rotational motion of a motor, etc., into linear motion. Major functions consist of transportation and positioning of merchandise and parts, semiconductor manufacturing equipment, industrial robots, and machine tools. Since the amount of travel (lead) per revolution of a ball screw can be precisely reproduced, high positioning accuracy can be achieved by combining it with a stepping motor.

In NC-controlled computing device tools, ball screws are used to configure the feed mechanism and obtain precision positioning accuracy. Ball Screws are additionally used in food machinery, medical equipment, robots, injection molding machines, printing equipment, amusement equipment, automobiles, trains, aircraft, semiconductor manufacturing equipment, and inspection equipment.

Kairun precision ground ball screw that achieves low noise, small torque fluctuations and long-term maintenance-free operation by using a ball cage. Using a screw shaft ground to high accuracy. In the DIN standard compliant ball screw, balls below a load roll in the raceway reduce between the screw shaft and the nut whilst receiving the axial load, travel along the groove of a deflector embedded inside the nut to the adjoining raceway, and then circulate back to the loaded area. Thus, the balls perform infinite rolling motion.

Precision ground DFU series is a highly advanced and innovative product that has been designed to meet the needs of contemporary industries. These precision floor DFU series are engineered with the latest technology and are of the perfect quality. They have been constructed to supply the best performance in phrases of accuracy and precision.

The ball screw is composed of a screw rod, a nut, a steel ball, a pre-compression piece, a steering gear, and an anti-skid piece. Its characteristic is to convert rotary motion into linear motion, and the important significance of its development is to transform the bearing from sliding motion into rolling motion. Ball screws are widely used in a number industrial gear and precision instruments because of their low frictional resistance. Transmission aspects frequently used in machine tools and precision machinery, whose important feature is to convert rotary motion into linear motion, or the rotor into axial repetitive force, and have the characteristics of high precision, reversibility, and high efficiency. Now we mainly introduce the type of ball screws .

Because the ball screw uses ball motion, the starting torque is extremely small, and there will be no crawling phenomenon like sliding motion, which can ensure the realization of accurate micro feed. Ball screw has the traits of high lead precision and exact sensitivity. When synchronous transmission is required, various units of ball screw pairs with the same lead can be used to acquire exact synchronization performance. The hardness of the ball and raceway can reach HRC58~63. The shape of the raceway is accurate, the rolling friction and wear are very small, and it has good accuracy retention, reliability and service life.

Feature of rotating nut ball screw: High efficiency of transferring, smooth movement, high precision, duration, reliability, no hole and preloading, low friction, lengthy lasting design and high-speed operation.

Zhejiang Kairun Transmission Machinery Co., Ltd. is one of the professional manufacturers and suppliers of automation machinery parts in China. Our mission is to be an modern and responsive organization whose linear motion products are engineered, manufactured, and delivered to meet or exceed our customers' specs and expectations. Whether the application requires an off-the-shelf linear motion component or an engineered solution tailored to fit your application, we provide complete engineering, design, analysis and manufacturing capabilities.

The ball screw is a indispensable issue in automation equipment, designed to provide smooth and precise linear motion. It consists of a screw shaft and a nut assembly, with ball bearings circulating between them. This mechanism enables efficient transfer of rotational motion into linear motion, ensuing in high accuracy and repeatability.

The ball screw is widely used in a variety of industries, including manufacturing, automotive, aerospace, and robotics. Its exceptional overall performance makes it an essential element in automation systems, where precision and reliability are paramount.

The ball screw drive system is a rolling screw pressure machine the usage of balls as the rolling medium.

Transmission efficiency. The transmission effectivity of the ball screw pressure machine is as high as 90%-98%.

Smooth movement. The ball screw drive system is a point contact rolling motion, with low frictional resistance, high sensitivity, no chattering when starting, and no creeping phenomenon at low speeds, so it can precisely control the micro-feed.

High precision. The ball screw drive system has a small temperature rise during movement, and can be pre-tightened to remove the axial gap and the screw tour hole and pre-stretch the screw to compensate for thermal elongation, so greater positioning accuracy can be acquired And repeat positioning accuracy.

High durability. The rolling contact of the metal balls is hardened (HRC58-63) and precision ground. The cyclic device manner is in basic terms rolling and relatively little wear, so it has an efficient service life and precision retention.

Flanged Nut Ground Ball Screw SFS1605.Ball screw makes use of balls to roll.The screw shaft has an arc contour,this contour on the shaft in accordance to a certain angle of upward thrust (lead Angle) hovering on the shaft.The ball is designed to roll in the nut,in the arc profile of the screw shaft,so it is rolling friction.Fix one end or both ends of the screw shaft along the axis,drive the ball screw with a motor to rotate,and the nut of the strip ball will go alongside the axis of the ball screw.