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.

Precision Ball Screw Manufacturer

YIDI Motion delivers high-accuracy ball screws direct from our Hebei factory. OEM and ODM options for CNC machines, robotics, and automation projects worldwide.

Ready for custom specs? Email adam@yidimotion.com or call +86 18134111662 for factory pricing.

→ Procurement Risks in Ball Screw Sourcing
→ Our Ball Screw Solutions
→ Factory Capabilities at YIDI Motion
→ Technical Specifications
→ Real-World Applications
→ Installation and Maintenance Tips
→ Logistics for USA Importers
→ Customer Reviews
→ Buyer FAQs
Get Your Quote Today

Procurement Risks When Sourcing Ball Screws

Procurement managers know the headache of unreliable suppliers all too well. You order ball screws for a CNC retrofit, and they arrive with uneven preload or surface defects. Suddenly, your machine's accuracy drops, backlash creeps in, and downtime eats into production schedules.

I've seen it happen. In one case, a Midwest machine shop imported from a low-cost vendor—promised C5 accuracy, but tested at C10. Lead times stretched from 4 weeks to 12. That's not just frustrating; it disrupts cash flow and customer deliveries.

Common pitfalls include:

Mismatched tolerances leading to premature wear.
Inconsistent heat treatment causing nut binding under load.
Poor packaging that dents shafts during ocean freight.
Vague specs on dynamic load ratings, risking overload failure.

These issues compound in high-precision applications like 3-axis mills or robotic arms. A single bad batch can cost thousands in scrap and rework. That's why savvy buyers vet manufacturers on actual production data, not glossy brochures.

Switching suppliers mid-project? Risky. Better to partner with a factory that understands your operational pressures—from dynamic loads to contamination resistance.

Our Ball Screw Solutions: Ground and Rolled Precision

At YIDI Motion, we've streamlined ball screw production since 2020. Our lineup covers diameters from 12mm to 80mm, leads up to 20mm, and accuracy grades C0 to C10. Ground screws for ultra-precision needs, rolled for cost-effective high-volume runs.

What sets us apart? We match screw type to your load profile. For high-speed spindles, single-nut designs with preload reduce vibration. Heavy-duty presses get double-nut setups for zero backlash.

Materials matter. We use SCM440H alloy steel, hardened to 58-62 HRC. Ends machined precisely for easy coupling to servos or steppers. Nuts come in standard flange or block styles, with options for wipers to block coolant and dust.

Customization is routine. Need miniature balls for medical devices? Extended shafts for linear modules? We handle OEM specs without minimums jacking up costs. One client integrated our ballscrews into a pick-and-place system—cut friction losses by noticeable margins over their old acme leadscrews.

Short story: efficiency. Ball screws recirculate 90%+ of balls, delivering 90%+ mechanical efficiency. Compare to leadscrews at 20-40%. Payback comes fast in energy savings and speed.

YIDI Motion Factory Strength

Our Hebei facility isn't some rebranded trader—it's 100% owned production with 100 employees. Over 30% senior technicians from top Chinese institutes. We import grinders from Germany (DMG Mori lines) and spline rollers from Japan.

Workflow? Raw bar stock gets rough-turned, induction hardened, then precision ground. Optical comparators check every meter. Clean room assembly for nuts ensures no contaminants.

Exports to 50+ countries: USA gantry builders, German automation firms, Japanese robotics outfits. ISO 9001 certified. CE marking on request. No fake badges—auditable records.

Scale supports it: Monthly output 5,000+ meters of screw. Stock common sizes for 2-week air shipment to LAX or ORD. Full traceability via batch numbers.

HEBEI YIDI IMPORT AND EXPORT TRADING CO.,LTD. – that's us. Address: 16-1-1601 Aobeigongyuan, Chang'an District, Shijiazhuang City, Hebei Province, China. Visit www.yidibearings.com/contactus.html for the full tour.

Technical Specifications Overview

Here's a snapshot of our standard offerings. Custom diameters and leads available— just specify.

Diameter (mm)	Lead (mm)	Accuracy Grade	Dynamic Load (kN)	Max Length (mm)
16	5, 10	C5, C7	18.5	4000
20	5, 10, 20	C3, C5	28.1	5000
25	5, 10, 25	C0, C3	36.8	6000
32	10, 20	C5, C7	52.4	7000
50	10, 20, 40	C7, C10	110	8000

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Note: Loads based on 50km life at 150,000 RPM equivalent. Full catalogs via email.

Want detailed drawings? Request product specs from adam@yidimotion.com.

Applications Across Industries

Ball screws excel where precision linear motion meets moderate-to-high loads. CNC routers? Standard SFU series handles Z-axis feeds smoothly.

Robotics: Delta arms use our miniature ground screws for repeatable positioning under 0.01mm error.

Factory automation: XY gantries in SMT lines. Preloaded nuts eliminate play during rapid traverses.

Even aerospace tooling—our C3-grade shafts support vibration-heavy environments.

One tip: Match lead to speed. 10mm lead for torque-limited servos; 20mm for high-velocity axes.

Installation and Maintenance Realities

Installation's straightforward but unforgiving. Align shaft parallelism to 0.02mm/m or binding follows. Use dial indicators on both ends.

Mount nuts with even torque—overtighten strips threads. Preload via spacer shims, not brute force.

Maintenance? Wipe tracks quarterly. Grease with lithium-based NLGI 2 every 100 hours run time. Watch for ball pitting from dry runs.

Ball Screw Ball Nut Manufacturer

Pro advice: Integrate limit switches early. Overshoot snaps balls.

Common mistake: Ignoring thermal expansion. Long screws need compensated couplings.

Logistics for USA and Global Buyers

Shipped from Shijiazhuang to major ports: LAX 25 days sea, 7 days air. 20ft container fits 2000m of 25mm stock.

Duties? HS code 8483.40—check your tariff schedule. We provide commercial invoices, packing lists, CO.

Packaging: Wooden crates, shafts foam-wrapped, nuts in boxes. Vibration-tested for transit.

Lead times: Stock 2 weeks; custom 4-6 weeks. Track via our portal.

What Buyers Are Saying

Mike R., Procurement Manager, Ohio CNC Shop

"Switched to YIDI after domestic quotes tripled post-pandemic. C7 25mm x10mm arrived perfect. Installed same week, backlash gone. Lead time beat Taiwan supplier by half."

Sarah L., Automation Engineer, Texas Robotics Firm

"OEM run of 40mm preloaded nuts for gantry. Engineer Adam sorted specs via WeChat. Quality matched THK at 60% cost. Repeat business."

Tom K., Operations Director, California Fabricator

"Rolled screws for budget line. Held up 5000 hours no issues. Logistics smooth—DHL air for prototype rush."

Carlos M., Importer, Florida Distributor

"Full container to Miami. No damage, paperwork flawless. Margins now viable vs resellers."