This section provides an overview for sliding screws as well as their applications and principles. Also, please take a look at the list of 10 sliding screw manufacturers and their company rankings.
Table of Contents
A sliding screw is a type of feed screw used to convert rotational motion from a motor to linear motion. It consists of a screw shaft and a nut. The nut is made of a material with good sliding characteristics.
Although the function of sliding screws is the same as that of ball screws with a similar mechanism, sliding screws do not require balls, so they care easy to make at a relatively low cost.
Because of these advantages, sliding screws are used in semiconductor manufacturing equipment, linear motion parts of precision equipment, and various other electronic devices.
Sliding screws convert the rotational motion of a motor into motion on a linear motion mechanism, such as a linear guide, by the linear motion of the nut section as the screw shaft rotates.
Since power is transmitted by sliding motion of the screw shaft and nut, there is no need to worry about ball dropout, and this type of screw has a proven track record in the medical and food equipment industries.
Although the positioning accuracy is lower than that of ball screws, equivalent to C10 class, sliding screws are recommended when high-precision positioning is not required and cost is an important factor.
Sliding screws convert force by sliding between the screw shaft and nut, so the coefficient of friction and wear resistance of the contact surfaces is very important.
The material used for the screw shaft is either carbon steel for machine structural use (S45C) or austenitic stainless steel (SUS304), which has excellent wear resistance. For the nut, bronze casting (BC6C) is used, which has excellent wear and corrosion resistance, and polyacetal resin POM is used, which is a crystalline resin with self-lubricating properties and excellent wear resistance.
The combination of a stainless steel screw shaft and a polyacetal resin nut part is useful as a linear motion mechanism for machines used in wet environments because of its superior corrosion resistance.
On the other hand, its disadvantages are that it is vulnerable to sheer force and non-axial moments, and its transmission efficiency and positioning accuracy are lower than those of ball screws. Therefore, sliding screws are often used in conjunction with linear guides to limit the direction of the load, and ball screws are used when high efficiency or high positioning accuracy is required.
When fastening a component to a plastic nut, the tightening torque must be adjusted to prevent damage to the nut.
*Including some distributors, etc.
Sort by Features
Sort by Area
Millipore Sigma, formerly known as Sigma-Aldrich, was created in 175 through the merger of Sigma Chemical Company and Aldrich Chemical company and today is a subsidiary of Merck. Millipore Sigma is a life science and biotechnology company serving the industry with several products and services. Some of their product categories include peptide synthesis materials, biochemicals, building blocks, catalysts, chemical biology, chemical synthesis, flavors & fragrances, formulation, lab chemicals, lab safety, APIs, and stable isotopes. Services include characterization, contract manufacturing, custom products, software, support, testing, and mRNA development & manufacturing.
Number of Employees
Newly Established Company
Company with a History
This is the version of our website addressed to speakers of English in Canada. If you are a resident of another country, please select the appropriate version of Metoree for your country in the drop-down menu.