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.

Ballscrew Service: Precision Repair, Refurbishment & Custom Solutions from YIDI Motion

Stop downtime in your CNC or automation line. Get expert ballscrew service that restores accuracy and extends life—direct from our Hebei factory.

Quick Inquiry: Need ballscrew repair specs or pricing? Email adam@yidimotion.com or call +86 18134111662. USA deliveries in 7-14 days.

Why Ballscrew Failures Hit Procurement Hard

I've seen it too many times. A purchasing manager orders a cheap ballscrew replacement from an unknown supplier, only to face backlash and lead errors within months. Ballscrews aren't just rods with nuts—they're the backbone of linear motion in your machinery. Wear on the raceways or balls leads to positioning inaccuracies, vibration, and full stoppages.

Common risks? Overseas buyers often overlook preload inconsistencies or improper grinding tolerances. One US importer told me last year how a "bargain" ballscrew from a spot market vendor caused $15k in scrapped parts before they switched suppliers. And that's before counting downtime—easily 2-3 shifts per incident.

Accuracy loss: Backlash grows from 0.005mm to 0.05mm over 6-12 months in heavy use.
High freight costs: Full replacements ship heavy, bulky.
Compatibility issues: Off-spec diameters or pitches mismatch existing setups.
Warranty voids: Third-party repairs can invalidate OEM coverage.

Procurement directors get it: servicing existing ballscrews makes more sense than wholesale swaps. Regrinding restores diameter to original specs, nut repacking swaps in grade 10 balls, and full inspections catch issues early. Saves 40-60% vs. new units, based on what our repeat clients report.

Ballscrew regrinding in progress at YIDI Motion

Ballscrew raceway regrinding on our German-imported grinder. Tolerances held to ±0.002mm.

YIDI Motion's Ballscrew Service Breakdown

At YIDI Motion, ballscrew service starts with a full teardown. We don't guess—we measure. Every screw gets ultrasonic cleaned, then inspected under 50x magnification for brinelling or fretting. Raceways checked for roundness via air gauges; balls sorted by sphericity.

If salvageable, we precision grind the shaft back to OEM diameter. Typical wear? 0.01-0.05mm off the raceway—our process brings it back, plus a fresh chrome plating for corrosion resistance. Nuts get new return paths if cracked, repacked with ceramic or steel balls to match your load rating.

Service Type	Capabilities	Turnaround	Cost Savings vs New
Regrinding & Polishing	Dia 10-80mm, lengths to 6m; ±0.001mm tolerance	7-10 days	50-70%
Nut Repair/Replace	End wipers, preload adjust; custom flanges	5-7 days	60-80%
Full Refurbish	Includes supports, couplings; dynamic testing	10-14 days	40-60%
Custom Build	OEM/ODM; rolled or ground; SFU/DFU series	14-21 days	N/A

ballscrew wholesale ballscrew ballscrew supplier

Custom? We handle that too. Say your machine needs a 25mm dia, 5mm pitch with double nut—no problem. Our Japan-sourced CNC grinders handle it. Preload set to your specs: 2-5% for high-speed apps, higher for heavy loads.

One note from the shop floor: always send us your end journals intact. Mismatched machining leads to alignment headaches on reinstall.

Pro Tip: For high-dust environments, opt for our sealed nut designs. They cut contamination ingress by half compared to standard wipers.

Our Factory: Built for Ballscrew Precision

HEBEI YIDI IMPORT AND EXPORT TRADING CO., LTD—doing business as YIDI Motion—kicked off in 2020 with a focus on linear motion components. Today, 100 staff strong, over 30% senior techs. We've got grinders and hones from Germany (e.g., Studer S41), superfinishers from Japan (Taiyo Koki), and full CMM inspection rooms.

Exports to 50+ countries: USA gets regular shipments to California machine shops and Midwest automation firms. Compliance? ISO 9001 verified, RoHS for EU paths, CE marking ready.

Why trust us? Our one-stop shop means no chasing multiple vendors. Ballscrew service pairs seamlessly with linear guides or actuators from stock. Lead times beat most Chinese mills because we prioritize export queues.

Where Ballscrew Service Shines

CNC mills and lathes dominate our service queue—think Haas VF series or DMG Mori setups. Refurbed ballscrews drop repeatability errors from 0.02mm to under 0.005mm post-service.

Robotics next: collaborative arms like UR10 need backlash-free motion. We handle spline-integrated designs too. Semiconductor fabs? Ultra-precision ground screws for wafer stages.

Aerospace jigs: High preload for vibration resistance.
3D printers: Cost-effective for large-format beds.
Packaging lines: Speed-focused, low-friction finishes.

Case in point: A Texas fabricator sent us two 4m ballscrews from a gantry router. Post-refurb, cycle times improved noticeably—no more binding at stroke ends.

Actuator Ball Screw Service

Installation Realities & Maintenance Schedule

Back from us? Alignment is key. Use laser tools for parallelism—off by 0.03mm/300mm courts early wear. Torque nuts to spec: overdo it, preload spikes; under, backlash creeps in.

Maintenance: Grease every 1000km travel or quarterly. Listen for notchy feel—that's ball damage starting. Dust boots? Check monthly; tears let grit in fast.

Quick Maintenance Checklist

Wipe externals weekly.
Check preload with dial indicator yearly.
Full disassemble every 10,000 hours.
Monitor vibration via sensors if automated.

We've shipped install kits—dial gauges, torque wrenches—for USA clients. Cuts setup time.

Shipping to USA & Beyond

From Shijiazhuang, ballscrews go DHL for small lots (3-5 days), sea for bulk (25 days to LA). We pack in foam-lined crates, desiccants included. Duties? We provide commercial invoices for Section 301 tweaks.

Address: 16-1-1601 Aobeigongyuan, Chang'an District, Shijiazhuang City, Hebei Province, China.

Return shipping labels? We arrange prepaid via FedEx for repairs. No surprises.

USA Buyer Note: FOB Shanghai terms standard. Get your quote including door-to-door.

Feedback from Procurement Teams

Mike R., Texas CNC Shop
Refurbed two ballscrews—back like new. Saved us $4k vs new. Turnaround was 9 days including ship. Solid.
Oct 2026

Sarah L., Midwest Distributor
Custom nut replacement for Fanuc spindle. Preload spot-on. They're our go-to now for linear parts.
Feb 2026

John K., California Robotics Firm
Full service on 80mm dia unit. Tested smooth at 2000rpm. Logistics smooth, no customs hassle.
May 2026

Carlos M., Florida OEM
OEM ballscrew service integrated with our guides. Quality held up in high-cycle test. Repeat order in.
Jul 2026

Ballscrew Service FAQs

What's the typical lifespan post-service?: 10,000-50,000 hours, depending on load/duty. Matches new if properly maintained.
Do you handle miniature ballscrews?: Yes, down to 6mm dia for medical or optics.
Pricing structure?: Starts at $150 for inspection/quote. Refurbs $300+ based on size/condition.
Warranty on services?: 12 months or 5,000 hours. Covers materials/workmanship.
Can I send just the nut?: Absolutely. Often the weak link.