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.

Unit Bearings: Cut Machinery Downtime by 40% in 90 Days with OEM Precision from YIDI Motion

As a US operations manager, you're battling unreliable bearings that spike costs and halt production. Discover YIDI's unit bearings—engineered for high-load linear motion with German/Japanese tech for seamless integration.

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Why Your Current Unit Bearings Are Costing You Thousands

In 2026, US manufacturers face intensifying pressure from supply chain disruptions. Your unit bearings—critical for conveyor systems, robotic arms, and packaging machines—are failing you.

High Prices Eating ROI: Competitors charge 25-40% premiums due to import tariffs and middlemen, forcing you to overpay for basic pillow block unit bearings.
Low Quality Leading to Failures: Inferior flange mount bearings seize under load, causing 37% more downtime per industry reports from McKinsey (2025).
Skyrocketing Shipping Costs: Delays from overseas suppliers average 45 days, inflating logistics by 20% amid global freight hikes.
Inconsistent Quality from China's Supply Chain: Variable tolerances lead to misalignment in linear motion bearings, reducing machine life by 30%.
Poor Service & No Customization: No OEM/ODM options mean retrofits waste weeks, per Gartner procurement surveys.
Reliability Gaps: Without rigorous QA, vibration failures spike maintenance costs by $15K annually per unit.

Ready to fix these? Scroll to YIDI's solutions. Learn More →

YIDI Motion Unit Bearings: Precision Engineered for US Demands

Since 2020, YIDI Motion has delivered unit bearings from our 100-employee Hebei factory. With 30% senior technicians and equipment from Germany/Japan, we outperform on price, service, quality, beating competitors' China chains.

Core Advantages

Powerful Factory Capacity: 50,000+ units/month, ensuring stock for high-volume US orders.
Quality Assurance: Tolerances ±0.005mm, tested to 1M cycles—30% longer life than standards.
OEM/ODM Design: Custom mounted ball bearings with your specs, from prototype to production in 15 days.
High-Speed Delivery: DHL/FedEx to USA in 7-10 days, slashing shipping costs by 40%.
One-Stop Linear Motion: Pair with ball screws, linear guides for full assemblies.
ROI-Focused: 25% lower total cost vs. competitors, per our 2025 client audits.

Technical Specifications Table

Model	Type	Bore Dia (mm)	Load Rating (Dynamic/Static, kN)	Speed (RPM)	Material	Applications
UC205 Unit Bearing	Pillow Block	25	14/7.8	7000	Chrome Steel GCr15	Conveyors
UCFL208	Flange Mount	40	29.1/17.8	5000	Stainless Steel Opt.	Food Processing
UCP212	Take-Up Unit	60	52.5/36.0	3800	High-Temp Alloy	Packaging Machines
Cartridge UC314	High-Load	70	71.5/52.0	3000	GCr15 + Seals	Robotics
Custom OEM	Per Spec	10-200	Up to 100kN	Up to 10,000	Custom	Linear Modules

Key Metrics: IP65 sealing for dust/moisture, C3/C4 clearance for high-speed ops, RoHS compliant. Tolerances per ISO 492/DIN 620. Vibration levels V15 max.