Rolled Ball Screw with 20mm Lead for Linear Motion

The Rolled Ball Screw with 20mm Lead for Linear Motion from Maitu factory represents a breakthrough in linear motion technology, engineered to bridge the gap between speed, precision, and affordability. As a critical component in automated systems, it converts rotational motor energy into smooth, accurate linear displacement—directly impacting production speed, positioning accuracy, and overall system efficiency.

Maitu’s 20mm lead rolled ball screw adopts an advanced cold‑rolling manufacturing process, which significantly enhances surface density, hardness, and fatigue resistance compared to traditional machined screws. The 20mm lead is carefully optimized to deliver ideal linear displacement per revolution, enabling linear motion systems to achieve higher speeds without increasing motor RPM, reducing resonance, and minimizing heat generation. Our vertical integration—from raw material processing, cold rolling, heat treatment to precision finishing and final inspection—ensures consistent quality and performance across every unit, making it an ideal choice for high‑speed linear motion applications across diverse industries.

Product Features

• High‑precision rolled construction: As a premium Rolled Ball Screw with 20mm Lead for Linear Motion, it features precision‑engineered raceways and optimized ball circulation, ensuring smooth, low‑friction motion and long‑term durability.
• 20mm optimized lead design: Delivers a balanced linear speed of approximately 2.2 m/min at standard motor speeds, striking an ideal ratio between speed and torque for most linear motion applications.
• High mechanical efficiency: Maintains over 90% efficiency to reduce energy consumption and heat buildup during continuous operation—critical for 24/7 linear systems.
• Stable positioning performance: The cold‑rolled process enhances structural rigidity, ensuring minimal deflection and stable positioning even under moderate to heavy loads.
• Low noise and vibration: Precision‑finished surfaces and optimized ball contact reduce friction and vibration, making it suitable for environments where noise reduction is essential.
• Excellent corrosion resistance: Available with optional electroless nickel plating or passivation treatments to resist moisture, cleaning agents, and harsh industrial environments.
• Easy installation and maintenance: Standardized dimensions and nut designs (Y‑type, V‑type) allow for seamless integration into existing linear motion setups, reducing downtime and maintenance costs.

Specifications

Product Advantages

The Rolled Ball Screw with 20mm Lead for Linear Motion from Maitu offers unmatched advantages for linear motion systems, addressing key challenges such as speed, efficiency, reliability, and cost. Its 20mm lead enables linear speeds that are 2–3 times higher than standard lead screws (e.g., 5mm, 10mm) at the same motor RPM, directly reducing cycle times and boosting production output. The cold‑rolled manufacturing process ensures superior surface hardness and wear resistance, extending the service life of the ball screw and reducing long‑term maintenance costs.

Unlike ground ball screws that are often over‑engineered for many applications, our rolled 20mm lead unit delivers comparable performance at a lower cost, making it a cost‑efficient solution for high‑speed linear motion systems. Additionally, our fully integrated supply chain ensures stable inventory, fast lead times, and consistent quality, supporting both small‑batch prototype orders and large‑scale mass production for linear motion equipment manufacturers.

What are the Benefits of a 20mm Lead?

• Higher linear speed: A 20mm lead provides significantly more linear displacement per motor revolution (up to 2.2 m/s), allowing linear motion systems to operate faster without increasing motor speed.
• Reduced motor load: Lower motor RPM is required to achieve target speeds, decreasing power consumption and extending the life of the motor and drive system.
• Minimized resonance risk: Operating at lower rotational speeds avoids the natural resonance frequency of many linear shafts, resulting in smoother, more stable motion.
• Improved dynamic response: The large lead design accelerates and decelerates more quickly, enhancing the responsiveness of linear positioning systems for tasks like pick‑and‑place.
• Balanced torque and speed: Ideal for applications that require both speed and moderate load capacity, such as packaging and material handling linear stages.

Common Applications

The Rolled Ball Screw with 20mm Lead for Linear Motion is widely adopted across industries where high‑speed, reliable linear motion is essential. Key applications include:

• High‑speed packaging machinery: Linear positioning systems for filling, sealing, and labeling machines, where fast and accurate movement directly impacts production speed.
• Automated assembly lines: Precision linear stages for 3C electronics, automotive components, and medical device assembly, ensuring consistent part placement.
• Material handling systems: Conveyors, gantry robots, and palletizing equipment that require fast, stable linear transport of goods in warehouses and factories.
• Printing and converting equipment: Linear drive systems for high‑speed printers, labelers, and film cutting machines, maintaining print quality and production speed.
• CNC linear modules: Medium‑precision linear motion axes for CNC routers, laser cutters, and drilling machines, balancing speed and accuracy.
• Automated testing equipment: Linear positioning stages for semiconductor and quality control testing systems, ensuring repeatable and precise movement.

What is the Difference Between Rolled and Ground Ball Screws?

• Manufacturing Process: Rolled Ball Screw with 20mm Lead for Linear Motion uses cold rolling to form the raceway, while ground ball screws are precision machined by grinding. Rolling is faster and more cost‑effective, while grinding offers ultra‑high precision.
• Precision Level: Ground screws achieve C0‑C3 precision for ultra‑high‑end applications; our rolled screws excel at C5‑C7, which meets the needs of most high‑speed linear motion systems without overpaying for unnecessary precision.
• Cost Efficiency: Rolling reduces production costs by 30‑50% compared to grinding, making our 20mm lead rolled ball screw an ideal choice for mass‑produced automation equipment.
• Performance: Both types deliver high efficiency, but rolled screws have better surface compressive stress, enhancing fatigue resistance under high‑speed, continuous operation—perfect for linear motion systems.
• Lead Availability: Rolling allows for easier production of large leads like 20mm, which are often harder and more expensive to manufacture via grinding.

Why Choose Us

• Full supply chain integration: From raw material selection to final assembly and testing, we control every stage to ensure consistent quality and reduce lead times.
• Specialized 20mm lead expertise: We have dedicated production lines and R&D efforts focused on large‑lead rolled ball screws, optimizing the 20mm lead for maximum speed and efficiency.
• 30% faster lead times: Custom and standard lead configurations are delivered 30% faster than industry averages, supporting tight project schedules for linear motion equipment manufacturers.
• Proven industry experience: Over 12 years of serving global automation clients, with a track record of providing reliable linear drive solutions to 5000+ customers.



• Comprehensive testing: Every ball screw undergoes 100% dimensional inspection, dynamic balance testing, and performance validation to ensure reliable operation in linear motion systems.
• Global customer support: We provide technical selection guidance, customization options, and after‑sales service to help you integrate the 20mm lead rolled ball screw seamlessly into your system.

FAQ

• Q: Is the Rolled Ball Screw with 20mm Lead for Linear Motion suitable for heavy‑load linear motion applications?
  A: Yes, the 20mm lead rolled ball screw is designed to handle moderate to heavy loads (up to 1500kg for larger diameters). Its cold‑rolled structure and high‑strength alloy steel material provide excellent rigidity, making it suitable for heavy‑duty linear systems like palletizing robots and large‑scale conveyors. For ultra‑heavy loads, we can recommend larger diameter models or custom reinforcement options.
• Q: Can I use a 20mm lead rolled ball screw in a high‑speed, high‑precision CNC linear module?
  A: Absolutely. When paired with a C5 precision grade, our 20mm lead rolled ball screw delivers stable positioning accuracy (lead error ≤0.015mm/300mm) and high speed, making it ideal for medium‑precision CNC applications. For ultra‑high precision (e.g., semiconductor processing), we recommend our ground ball screws, but our rolled 20mm unit is perfect for most CNC linear motion needs.
• Q: What is the typical service life of the 20mm lead rolled ball screw?
  A: Under normal operating conditions—proper lubrication, within load limits, and clean environment—the service life exceeds 50,000 hours. The cold‑rolled raceway and high‑quality ball materials significantly enhance wear resistance, extending the product’s lifespan compared to standard screws. We also provide maintenance guidelines to help you maximize its service life.
• Q: Do you offer customization for the 20mm lead rolled ball screw, such as special length or nut type?
  A: Yes, we fully support customization. We can adjust the shaft length (up to 7000mm), choose different nut types (Y, V, U, BSH), and add special surface treatments or end machining to match your linear motion system’s requirements. Our engineering team will work with you to design the optimal solution.
• Q: How does the 20mm lead compare to other lead sizes in terms of speed and torque?
  A: The 20mm lead offers the best balance of speed and torque for most linear motion applications. It provides 2–3 times the linear speed of a 10mm lead screw at the same motor speed, while maintaining sufficient torque for moderate to heavy loads. Smaller leads (5mm, 8mm) are slower but offer more torque, while larger leads (25mm+) are faster but reduce torque—making 20mm the ideal choice for versatile, high‑speed linear systems.