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.

Wholesale Curved Linear Guide Rail: High-Precision OEM/ODM Solutions with Fast USA Delivery

As a US purchasing manager, you're battling high prices, inconsistent quality, and sky-high shipping costs for curved linear motion components. YIDI Motion delivers factory-direct wholesale curved linear guide rails—customized for your automation needs, with 30% cost savings and 7-14 day delivery.

The Hidden Costs Crushing Your Linear Motion Budget in 2026

As operations ramp up in US manufacturing, curved linear guide rails are essential for robotics and automation. But competitors' pitfalls leave you exposed.

High Prices Eating ROI: Imported rails from Europe average $150-300 per meter, slashing your margins by 25%.
Low Quality Failures: Cheap knockoffs wear out in 6-12 months, causing 37% more downtime per industry reports from Automation World.
Skyrocketing Shipping: Delays from Asia hit 4-8 weeks, inflating costs by 20% with tariffs and fuel hikes.
No Customization: Off-the-shelf curved guides don't fit unique CNC or conveyor paths, forcing redesigns.
Unreliable Suppliers: Poor after-sales mean you're stuck with defects—no OEM/ODM flexibility.
Compliance Headaches: Missing CE/RoHS certs block FDA-regulated apps in med-tech.

These issues cost US firms $2.5B annually in linear motion failures (McKinsey, 2025). Ready for a fix?

Factory-Direct Wholesale Curved Linear Guide Rail: Engineered for US Demands

HEBEI YIDI IMPORT AND EXPORT TRADING CO., LTD. (YIDI Motion), founded in 2020, powers your projects with wholesale curved linear guide rails. Our 100-employee factory in Shijiazhuang, China—30% senior technicians—uses German/Japanese CNC for precision unmatched by competitors.

Core Advantages (Why Choose YIDI?)

Powerful Factory Capacity: 10,000m/month output ensures stock for bulk wholesale.
Quality Assurance: 99.8% defect-free rate, backed by ISO 9001.
OEM/ODM Design: Custom curvatures/radii tailored to your blueprints—free prototyping.
High-Speed Delivery: 7-14 days to USA via optimized sea/air, beating competitors by 50%.
Cost Leadership: 30-50% below market via direct supply chain.
Global Compliance: CE, RoHS, FDA-ready for seamless import.

Technical Specifications: Precision Curved Linear Guide Rails

Diving deep into specs—curved linear guide rails enable smooth motion on non-linear paths, critical for robotics. Our rails use high-carbon chrome steel blocks and recirculating ball bearings for zero backlash and C0-C3 precision grades.

Key Features:

Curvature Radius: 100mm to 5000mm, customizable.
Load Capacity: Up to 50kN dynamic/200kN static.
Speed: 5m/s max, with low friction coefficient (μ=0.002).
Material: SCM440 steel (58-62HRC), corrosion-resistant coating optional.
Sealing: Double lip seals for IP65 dust/water protection.
Lubrication: Grease-packed for 10,000km life.

Model	Block Size (WxHxL)	Rail Width	Curve Radius (mm)	Dyn. Load (N)	Stat. Load (N)	Weight (kg/m)
CRG15	38x34x61mm	15mm	500-2000	12,500	49,000	1.5
CRG20	53x45x83mm	20mm	800-3000	22,000	88,000	2.3
CRG25	70x57x106mm	23mm	1000-4000	33,000	132,000	3.2
CRG35	100x80x155mm	35mm	1500-5000	50,000	200,000	6.5

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Performance Characteristics: Tested per ISO 3408 standards, our rails achieve friction under 0.002, with rigidity up to 150N/μm. In curved paths, deflection is minimized to <0.01mm/m via optimized raceway geometry. For high-speed apps, vibration damping reduces noise by 15dB.