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Wholesale Ball Screw

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Ball Screw

Ball screws can be clearly categorized based on their core manufacturing processes and structural functional characteristics.

The first primary classification is the manufacturing process, mainly divided into ground-grade and rolled-grade. Ground-grade screws are precision-ground to achieve extremely high motion accuracy, positioning precision, and excellent stability, forming the cornerstone of high-end precision equipment. Rolled-grade screws, on the other hand, are produced using a cold-rolling process, offering good cost-effectiveness and superior load capacity, suitable for a wide range of applications where precision requirements are relatively relaxed and cost-effectiveness is a priority.

Within this broad category of rolled-grade screws, further subdivisions into several functional series can be made based on their structural design, performance optimization, and application adaptability. The product portfolio primarily includes: flange-type (such as the SFU/SFI series) and simple cylindrical-type (such as the SCA series) models focused on ease of installation; dustproof models emphasizing enhanced durability and reliability (such as the SFNU/SFNI/SCNI series); high-speed, low-noise models designed to improve the motion experience (such as the SFS/SFA series); and high-lead, high-speed transmission models (SFY series), miniature and compact models (SFK series), and double-nut models (DFU series) that eliminate backlash and enhance rigidity through preload to meet special operating conditions.

This product system, based on manufacturing processes and driven by functionality, constructs a complete solution matrix ranging from ultra-high precision to widespread applications, and from standard operating conditions to special needs such as high speed, dustproof, and miniaturization.

About
Lishui Wangong Precision Machinery Co., Ltd.
Lishui Wangong Precision Machinery Co., Ltd. was founded in 2008 and is located in Lishui City, Zhejiang Province. We take pride in our state-of-the-art R&D and production facility, covering an impressive 52,000 square meters. Our expertise lies in manufacturing precision transmission components, such as ball screw assemblies, linear guides, roller guides, linear shafts, and ball screw assemblies.

As a high precision ball screw assemblies supplier & factory, we seamlessly integrate research and development, production, sales, and service. We have successfully incorporated advanced equipment and cutting-edge technologies from renowned countries like Germany, Japan, and Taiwan. Our commitment to innovation has led to the acquisition of multiple product design patents, and we proudly adhere to ISO9001 certification standards.
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Ball Screw Solutions for Precision Linear Motion Systems

Ball screws are key precision transmission components used in machinery that requires accurate linear motion, smooth operation, and efficient power transfer. For equipment manufacturers and engineering teams, choosing the right ball screw is not only about selecting a diameter or lead. It also involves load capacity, positioning accuracy, installation structure, service life, maintenance needs, and long-term supply stability.

A ball screw converts rotary motion into linear movement through a screw shaft, ball screw nut, and circulating steel balls. Compared with conventional sliding screws, the rolling contact structure helps reduce friction and improve transmission efficiency. This makes ball screw assemblies widely used in CNC machinery, industrial automation, robotics, packaging equipment, semiconductor systems, medical devices, and many other precision motion applications.

As a precision transmission component manufacturer, WanGong supplies standard and custom ball screw solutions for industrial machinery, automation systems, and OEM equipment projects.

What Is a Ball Screw?

A Ball Screw is a mechanical linear motion component designed to convert rotational motion into precise linear movement. It typically consists of a screw shaft, ball screw nut, steel balls, return system, seals, and related mounting accessories.

When the screw shaft or nut rotates, steel balls roll between the raceways of the shaft and nut. This rolling motion reduces friction and allows the system to move with higher efficiency and smoother operation. In many applications, a ball screw assembly is selected where accurate positioning, repeatable movement, and stable load handling are required.

Common Product Terms

Precision Ball Screw
Ball Screw Assembly
Linear Motion Ball Screw
CNC Ball Screw
Ground Ball Screw
Rolled Ball Screw
Ball Screw Nut
Ball Screw Support Unit
Ball Screw Accessories

Ground ball screws are often used for applications requiring higher accuracy and smoother motion, while rolled ball screws are commonly selected for applications that need reliable performance with balanced cost efficiency. The final choice depends on the required accuracy, load, speed, stroke, operating environment, and installation design.

Common Materials and Structures

The structure and material selection of a ball screw have a direct influence on its load capacity, rigidity, positioning accuracy, running speed, noise level, maintenance requirements, and installation space. For industrial equipment manufacturers, these details are important when selecting a ball screw for new machine design, replacement projects, or custom linear motion systems.

Materials

Ball screws are usually manufactured from selected steel materials such as bearing steel, alloy steel, or heat-treated steel. Proper heat treatment helps improve surface hardness, wear resistance, and dimensional stability during operation.

For applications with special environmental requirements, material selection can be reviewed according to the actual working conditions, such as humidity, dust, lubrication method, and corrosion risk.

Main Structural Components

Screw shaft
Ball screw nut
Steel balls
Ball return system
Flange nut or round nut
Single nut or matched nut structure
Seals and dust protection components
Lubrication structure
Support units
Fixed-end and support-end bearing blocks
Nut housing
Lock nuts
End machining structure
Custom mounting interface

Single nut structures are commonly used in general linear motion systems. Matched or preloaded structures may be considered when the application requires higher rigidity or reduced axial clearance. Flange nuts are widely used in industrial equipment because they are convenient for mounting.

Round nuts or customized nut structures may be selected when the installation space or machine layout requires a different design.

Matching accessories such as support units, nut housings, couplings, and lock nuts can be reviewed based on the customer’s drawings or machine installation requirements.

Working with a Ball Screw Manufacturer

A qualified ball screw manufacturer should provide more than standard product supply. For industrial machinery projects, useful support often includes drawing review, product selection, machining feasibility checks, accessory matching, packaging planning, and clear communication during production.

Information Helpful for an Inquiry

Product drawing or sample
Diameter and lead
Total length and stroke
Nut type
End machining details
Accuracy requirement
Load and speed conditions
Application equipment
Required quantity
Packaging or labeling requirements

WanGong provides ball screw assemblies and related precision transmission components for industrial automation, CNC machinery, linear motion systems, and custom equipment projects. With manufacturing experience, process control, inspection capability, and OEM support, we help customers source components that fit their equipment requirements and long-term production plans.

FAQ for Ball Screw Procurement and Supply Projects

The following questions cover common concerns related to ball screw selection, OEM production, repeat supply, technical communication, and industrial application support.

What information should I provide when requesting a ball screw quotation?

To prepare an accurate quotation, please provide the product drawing, screw diameter, lead, total length, stroke, nut type, end machining details, accuracy requirement, quantity, and application equipment. If a drawing is not available, a sample, part number, or clear photos with key dimensions can also help our team review the requirement.

Can WanGong supply ball screws for long-term production projects?

Yes. WanGong supports long-term supply for equipment manufacturers, automation companies, distributors, and industrial component programs. We can provide standard ball screw models, customized assemblies, matched accessories, and batch production according to confirmed specifications.

Do you support OEM ball screw production?

Yes. WanGong supports OEM ball screw projects based on drawings, samples, or technical requirements. Custom options can include screw diameter, lead, total length, nut structure, preload level, accuracy requirement, end machining, surface treatment, matched support units, labeling, and packaging.

Can WanGong supply matched ball screw accessories?

Yes. WanGong can provide matched accessories such as ball screw nuts, support units, nut housings, brackets, couplings, lock nuts, and related mounting components. Supplying matched accessories can simplify installation and reduce compatibility issues during machine assembly.

Can you keep product consistency for repeat orders?

Yes. For repeat production, WanGong can follow confirmed drawings, specifications, inspection standards, and packaging requirements. Batch identification and traceability help maintain consistency across repeat orders and long-term supply programs.

What industries do your ball screws commonly serve?

WanGong ball screws are commonly used in CNC machinery, industrial automation equipment, robotics, packaging machinery, semiconductor equipment, electronics manufacturing systems, medical devices, measuring equipment, laser cutting machines, textile machinery, woodworking machinery, and custom industrial equipment.

Can you produce ball screws according to existing samples?

Yes. If drawings are not available, existing samples can be reviewed for dimensional measurement and structure analysis. For accurate reproduction, it is helpful to provide information about the application equipment, accuracy requirements, and any known performance issues with the original part.

Do you support small trial orders before regular supply?

Yes. Trial orders can be arranged for standard or customized products, depending on project requirements. A trial order helps confirm product fit, installation compatibility, and quality expectations before regular production planning.

How do you handle technical communication for custom projects?

For custom ball screw projects, our team reviews drawings, confirms technical parameters, evaluates manufacturing feasibility, and communicates key details before production. This process helps avoid specification errors and improves the reliability of the final assembly.

Why work with WanGong for ball screw supply?

WanGong provides precision transmission components with integrated manufacturing, technical support, customization capability, and full-process inspection. With experience in ball screws, linear guideways, linear shafts, linear bearings, and related accessories, we support equipment manufacturers and industrial customers with reliable linear motion component solutions.