What Is a Ball Screw and How Does It Work?

A ball screw is a mechanical linear actuator that converts rotary motion into linear motion using ball bearings to minimize friction and increase efficiency and accuracy.

What Types of Ball Screws Do You Offer?

We offer a variety of ball screws including ground ball screws, rolled ball screws, miniature ball screws, and high-lead ball screws to meet different precision and load requirements.

How Do I Choose the Right Ball Screw for My Application?

Selection depends on factors like load capacity, lead accuracy, speed, stroke length, and whether the application demands high positioning precision or heavy-duty performance.

What Is the Difference Between Ground and Rolled Ball Screws?

Ground ball screws offer higher precision and smoother motion, ideal for high-accuracy applications. Rolled ball screws are more cost-effective and suitable for general-purpose use.

What Maintenance Is Required for a Ball Screw?

Regular lubrication is essential. Also, keep the screw clean from debris and inspect for wear, preload loss, or unusual noise to ensure optimal performance and service life.

High Precision Ball Screw: Achieve 0.005mm Accuracy and 30% Cost Savings for US Manufacturers – Free Sample Available

Struggling with inaccurate linear motion in CNC machines, automation lines, or robotics? YIDI Motion delivers high precision ball screws engineered for USA standards, solving downtime and quality issues for purchasing managers like you.

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Your Biggest Challenges with High Precision Ball Screws

As a US operations manager sourcing high precision ball screws for CNC routers, semiconductor equipment, or medical devices, you face relentless pressure to cut costs without sacrificing performance.

High Prices from Western Suppliers: Premium brands charge up to $500+ per meter, eroding your ROI on high-volume projects.
Inconsistent Quality: Off-the-shelf imports often fail 0.01mm accuracy tests, causing 20-30% scrap rates in precision machining.
Prohibitive Shipping Costs: Long lead times from Asia mean $200-500 per shipment in duties and freight, delaying your production by weeks.
Limited Customization: Standard ball screws don't match your OEM specs for high-speed applications over 60m/min.
Supply Chain Disruptions: Competitors struggle with raw material shortages, leading to 8-12 week delays.
After-Sales Gaps: No local support means troubleshooting backlash or preload issues alone.

These issues cost US manufacturers millions annually in downtime—according to a 2025 AMT report. Discover how YIDI fixes this below.

YIDI Motion's High Precision Ball Screw: Engineered for USA Demands

Founded in 2020, HEBEI YIDI IMPORT AND EXPORT TRADING CO.,LTD. (YIDI Motion) powers your linear motion needs with a 100-employee factory featuring German and Japanese CNC grinders. We export to 50+ countries, including top US firms, offering OEM/ODM design, quality assurance, and high-speed delivery.

Core Advantages

Superior Accuracy: C3/C5 grade with 0.005mm lead error—37% better than competitors.
Cost Efficiency: 30% lower prices via China's optimized supply chain, without quality trade-offs.
Fast Delivery: 7-14 days to US ports, slashing shipping costs by 50% with consolidated freight.
Customization: Tailored diameters (12-80mm), leads (2-20mm), and lengths up to 6m.
Durability: Hardened steel (58-62 HRC) for 50,000+ hours L50 life at 100,000 RPM.
One-Stop Service: Pair with linear guides, actuators, and bearings for full assemblies.

Technical Specifications Table

Our high precision ball screws meet ISO 3408-3 standards, ideal for CNC, robotics, and automation. Below is a comprehensive spec table for web crawling and your quick reference.

Parameter	SFU/DFU Series	RM Series (Rolled)	Ground Precision
Accuracy Grade	C5 (0.023mm/300mm)	C7 (0.052mm/300mm)	C3 (0.008mm/300mm)
Nominal Diameter (mm)	16-63	12-80	20-50
Lead (mm)	5, 10, 20	2-40	5-16
Max Length (mm)	6000	4000	3000
Dynamic Load (kN)	15-120	8-200	25-85
Speed (m/min)	60	120	150
Preload Options	Light/Medium	None	Heavy (0.005 C)
Material	SCM415 (58 HRC)	S45C	SF53 (62 HRC)
Backlash	≤0.01mm	≤0.05mm	≤0.003mm

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These specs ensure precision ball screw assemblies excel in high-load, high-speed environments. For instance, our C3 ground series handles axial loads up to 85kN while maintaining positional accuracy under vibration—critical for semiconductor wafer stages.

Application Scenarios & Case Studies

In CNC machining, high precision ball screws convert rotary to linear motion with 90%+ efficiency, reducing energy use by 25% vs. leadscrews. Key uses:

3/5-Axis CNC Mills: 40m/min rapids with 0.005mm repeatability; a Texas fabricator cut cycle times by 22%.
Robotics & Automation: SCARA arms achieving 0.01mm positioning; integrated with our linear modules.
Medical Devices: Surgical robots demanding FDA-compliant precision (IP65 options available).
Semiconductor Equipment: Lithography stages at 150m/min speeds.
Aerospace Testing: High preload for vibration resistance.

Performance characteristics: Low friction (0.003 coefficient), minimal heat buildup (<40°C at full load), and DN value up to 160,000 (diameter x RPM). Lifecycle testing per JIS B1192 shows 2x wear resistance vs. competitors. Request your custom spec sheet now.