Ball screw working principle

The working principle of ball screw is based on the principle of rolling friction 9. When the force for rotational or linear motion is transmitted to the threaded shaft, the balls are rolling in the guide slots between the threaded shaft and the nut. Due to the smaller rolling friction coefficient of the balls, the friction loss is relatively low, resulting in a higher rotational efficiency of the balls. Through the rolling of the balls, the input motion force can be smoothly transmitted to the nut, thereby achieving linear or rotational motion.

Suzhou Dibite Precision Machinery Co., Ltd. specializes in the production and processing of custom ball screw trapezoidal screw linear modules.

Common rough machining methods for ball screw in China

Hard Turning Process

For example, a screw with a turning diameter of 40mm and a pitch of 6mm, with part I rotating at approximately 680 rpm, the characteristics of this process method are:

Compared to the deep feed grinding process with abrasive wheels, production efficiency is increased by about 5-10 times.

2. Slots can only be cut in 90-degree V shapes on the workpiece. With larger pitches, the axial cutting force is greater, making it unsuitable for cutting large pitch workpieces. Zhejiang Ball Screw, generally cuts workpieces with a pitch of 6mm or less.

3. High rotating speed during turning and greater cutting resistance in hard turning can easily cause vibration and bending deformation in slender parts. The price of a 0401 ball screw is unavailable; it cannot be processed by turning. Therefore, turning is suitable for processing workpieces with a length-to-diameter ratio not exceeding 1:1 and a pitch of 6mm or less, with lengths under 1 meter.

4. Blade prices are low.

5. The threaded rod after grooving requires semi-finishing and finishing grinding.

Common processing methods for ball screw

Hard Helical Milling

The hard helical milling technology has been well-researched and applied internationally. In recent years, China has made significant progress in this field. The helical milling cutters are CBN shaped cutters, and the 1205 ball screw brands that are highly regarded feature cutters matched to the ball screw track arc. The 4040 ball screw pricing varies, but a single cut can achieve semi-finishing precision. Hard helical milling cutters are now largely domestically produced, leading to a drop in prices to a reasonable level, significantly reducing production costs. The hard helical milling ball screw process allows for a single cut depth reaching the full tooth depth, with the headstock speed varying from 1-6 rpm based on the workpiece diameter.

4040 Ball Screw Price - Zhejiang Ball Screw - Dibite Mechanical, provided by Suzhou Dibite Precision Machinery Co., Ltd. "Sales of machinery, hardware, electronics, and metal products" Choose Suzhou Dibite Precision Machinery Co., Ltd., located at: No. 112, Wansheng East Road, Wanping Town, Wujia District, Suzhou City, Jiangsu Province. For many years, Dibite has been committed to providing excellent service to customers. Contact: Wang Hailu. Welcome new and old customers to call, write, visit, and discuss business. Dibite looks forward to becoming your long-term partner!