Ball Screw
Your Professional Ball Screw Supplier
As a leading linear guide R&D, production, and sales company, we focus on high - precision products. Our 14,000-square-meter modern factory in Shuigai Industrial Park, Lishui City, Zhejiang Province, has standard workshops and advanced equipment. We also have precision testing instruments and a precision processing workshop with temperature and humidity control. At Zhejiang Baili Guide Rail Co., Ltd. we firmly believe that corporate culture is the driving force behind sustainable growth.
Our factory
This factory
In the world of advanced automation, every micron of movement counts. The precision, reliability, and smoothness of your linear motion components are not just specifications—they are the bedrock of your machinery's performance, efficiency, and reputation.
At Zhejiang Baili Linear Guide Co., Ltd., we understand this fundamental truth. For years, we have dedicated ourselves to mastering the art and science of linear motion, empowering innovators and industry leaders across the globe to build faster, smarter, and more reliable automated systems.
This introduction is more than just a company profile; it's an invitation to explore a partnership built on engineering excellence, unwavering quality, and a shared commitment to pushing the boundaries of what's possible. Discover how our solutions can become the driving force behind your success.
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![Ball Screw SFU 1204]()
Ball Screw SFU 1204Ball Screw SFU 1204 is a high-precision ball screw manufactured from premium alloy steel, delivering exceptional transmission efficiency and positioning accuracy. Featuring a 12mm diameter with a...read more -
![Sfu1204]()
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![Ball Screw SFE 4040]()
Ball Screw SFE 4040The SFE4040 is a ball screw with a nominal diameter of 40 mm and a lead of 40 mm. It belongs to the 1:1 ultra‑large lead specification within the SFE series (lead equals diameter). Its core design...read more -
![SFE 3232]()
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![Ball Screw SFE 2525]()
Ball Screw SFE 2525The SFE2525 is a ball screw with a nominal diameter of 25 mm and a lead of 25 mm (a 1:1 large-lead specification), specifically designed for high-speed, light-load transmission in compact spaces....read more -
![Ball Screw SFE2020]()
Ball Screw SFE2020The SFE2020 is a ball screw with a nominal diameter of 20 mm and a lead of 20 mm. It belongs to the 1:1 large-lead specification within the SFE series (lead equals diameter). It is specifically...read more -
![SFE1616]()
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![Ball Screw SFU8020]()
Ball Screw SFU8020The SFU8020 is a heavy-duty ball screw with a nominal diameter of 80 mm and a lead of 20 mm. It is a large-size product in the SFU series. Building on the ultra-high load capacity of the SFU80...read more -
![Ball Screw SFU8010]()
Ball Screw SFU8010The SFU8010 is a heavy-duty ball screw with a nominal diameter of 80 mm and a lead of 10 mm. It is a large-size product in the SFU series, characterized by the combination of a large diameter and...read more -
![Ball Screw SFU6320]()
Ball Screw SFU6320The SFU6320 is a heavy-duty ball screw with a nominal diameter of 63 mm and a lead of 20 mm. It is a large-size product in the SFU series, specifically designed for heavy-duty transmission...read more -
![Ball Screw SFU6310]()
Ball Screw SFU6310The SFU6310 is a heavy-duty ball screw with a nominal diameter of 63 mm and a lead of 10 mm. It is a large-size precision product in the SFU series. Its core design concept is the combination of a...read more -
![Ball Screw SFU5010]()
Ball Screw SFU5010The SFU5010 is a ball screw with a nominal diameter of 50 mm and a lead of 10 mm. It is a large-size product within the SFU series. It achieves a good balance between load capacity, rigidity, and...read more
Why Choose Us
Production Market
Our company has successfully expanded its footprint across global industrial markets, with our precision linear motion products serving clients in 30+ countries and regions.
Our Service
With continuous R&D investment, we maintain an expanding catalog of motion control solutions while offering OEM/ODM services to meet specialized application challenges.
Our Certificate
Certified by ISO 9001, we serve global clients in automation, medical, and new energy industries with customized solutions, rigorous quality control, and innovative R&D.
Our Factory
With over 20 years of expertise, our factory features advanced CNC machining, precision grinding, and automated assembly lines to produce high-quality linear guides, ball screws, and motion modules.
Advantages of Ball Screw
High Precision
Ball screws offer exceptional accuracy and repeatability, making them ideal for applications where precision is paramount. Compared to other mechanical transmission methods, the reduction in backlash ensures precise positioning.
Efficiency
Ball screws are highly efficient, converting a significant portion of input energy into linear motion. This efficiency translates to reduced power consumption and heat generation.
Low Friction
The recirculating ball bearings reduce friction, resulting in smoother and quieter operation. This characteristic is valuable in applications where noise reduction is critical.
High Load Capacity
Ball screws can handle high axial loads, making them suitable for applications that require both precision and substantial force, such as industrial automation and robotics.
Longevity
Properly maintained ball screws have a long service life, contributing to cost-effectiveness over the long term.
Material and Heat Treatment
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Ball Screw |
Material: SAE 6150 Alloy Steel |
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Nut |
Material: Aircraft Quality SAE 8620 Steel |
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Balls (Grade 25 or Better) |
Material: 52100 Chrome Steel |
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Return Tube |
Material: SAE 4130 Steel |
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Deflector |
Material: 17-4 PH Stainless Steel |
Types of Ball Screw
Miniature ball screws are popular for use in lasers, gauge measurement devices, semiconductors, medical instruments, and other small devices requiring smooth and precise linear motion.
Rolled ball screws, or roll ball screws, get their name from their formation process: starting as blank metal workpieces, they are shaped through cold screw rolling. These rolled ball screws boast impressive positional precision, accurate to several thousandths of an inch per foot.
Ground ball screws, known for their exceptional precision, are crafted through a three-step process: machining to a rough shape, case hardening, and grinding. The grinding occurs on high-speed machines coated with abrasive materials.
Precision ball screws encompass a broader category of ball screws designed to achieve exceptionally high levels of accuracy.
Lead screws, though not technically ball screws, are sometimes classified in the same category due to their ability to convert rotational motion into linear motion. Comprising a threaded screw shaft and a nut, lead screws generate friction through sliding rather than the rolling action typical of ball screws.
Ground screw threads are crafted through an abrasive process. A coarse abrasive cutter shapes the metal, carving out the grooves while the blank shaft remains horizontal. The resulting grooves are smoother compared to those of rolled screws.
Return-pipe type ball screws are designed with an exterior tube extending from the nut’s wall, guiding the balls back to their starting position. The return tube directs this flow, aided by fingers attached to the tube’s ends, ensuring smooth entry and exit for the balls.
Components of Ball Screw
Screw Shaft
The threaded shaft that rotates to drive linear motion.
Nut
The housing that contains the ball bearings and fits onto the screw shaft.
Ball Bearings
Recirculating ball bearings within the nut that facilitate smooth and efficient linear motion.
A well-maintained ball screw, properly lubricated and free from interferences like dust, will prove to be an essential component in many operations. Establishing a regular cleaning schedule is crucial, and usually, a simple wipe-down will suffice. To determine the best lubricant for your ball screw assemblies, consult your supplier. For added durability, consider preloading your ball screw assembly, as preloaded assemblies offer increased rigidity, beneficial for certain systems.
To keep our ball screw assembly in top condition, we should test the ball nut component to ensure proper alignment. Misalignment can lead to significant damage to the ball screw. Additionally, it’s best to leave our ball screws in their packaging until we’re ready for installation, as dust can negatively impact their performance. For long-term storage, rotating the ball screws every few months helps to maintain even oil distribution.
Applications of Ball Screw
CNC Machine Tools
Ball screws are the backbone of CNC (Computer Numerical Control) machine tools, including milling machines, lathes, and machining centers. They provide the accuracy and rigidity necessary for precision machining operations.
Medical Devices
In medical devices like robotic surgery systems, ball screws enable precise and steady movement for delicate procedures, improving patient outcomes.
Semiconductor Manufacturing
The semiconductor industry relies heavily on ball screws for wafer handling, precision alignment, and accurate positioning in the manufacturing process.
Aerospace and Defense
Ball screws play a vital role in aerospace applications, including aircraft control surfaces, missile guidance systems, and telescope positioning for satellites.
Laboratory Automation
In laboratory automation systems, such as liquid handling robots and spectrometers, ball screws ensure precise sample handling and measurements.
3D Printing and Additive Manufacturing
Ball screws are integral to the precise movement of the print head or build platform in 3D printers, ensuring the creation of intricate and accurate parts.
Robotics
Robotic arms and manipulators use ball screws to achieve precise movement and positioning in tasks such as pick-and-place operations and assembly.
Automotive Manufacturing
In automotive assembly lines, ball screws are employed for tasks like welding, painting, and chassis assembly, ensuring quality and consistency.
FAQ
Find professional ball screw manufacturers and suppliers in China here! We warmly welcome you to buy discount ball screw for sale here and get pricelist from our factory. Also, customized service is available.
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