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 and Nut Manufacturer

YIDI Motion: Your OEM Partner for High-Accuracy Linear Motion Components

Exporting to USA, Europe, Japan since 2020 | ISO Certified Factory | Custom Ball Screws & Nuts

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Procurement Risks in Ball Screw Sourcing
Our Ball Screw and Nut Solutions
Factory Capabilities & Strengths
Real-World Applications
Technical Specifications
Certifications & Compliance
Customer Feedback
Buyer FAQs
Shipping & Logistics
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Why Sourcing Ball Screws Goes Wrong – And How to Avoid It

I've handled procurement for dozens of US machine shops over the years. One common headache? Ball screws that promise the world but deliver backlash or premature wear. Purchasing managers chase low quotes, only to face weeks of downtime when accuracy drifts.

Take lead time surprises. A "stock ready" nut from a shady supplier turns into a 12-week wait. Or quality fakes – cheap rolled screws masquerading as ground precision, failing C5 tolerance checks on arrival. We've seen importers burn thousands replacing entire CNC spindles.

Then there's logistics. Oversized crates that don't fit containers, or undocumented materials causing customs holds in LA ports. Risk piles up fast if you're not dealing with a factory that gets export realities.

Undisclosed lead times: Verbal promises mean nothing without PO confirmation.
Accuracy misrepresentation: C7 labeled as C3 – specs don't match DIN/ISO.
Nut preload issues: Loose fits leading to vibration in high-speed apps.
MOQ traps: Small orders hit with premiums, killing ROI.

Operations folks tell me they lose 20-30% efficiency from bad linear motion parts. That's not hype – it's shop floor math. Spot these early, or budget overruns follow.

"Switched suppliers after two bad batches. YIDI fixed our spec drift issue overnight." – Midwest CNC Operator

YIDI Motion Ball Screws and Nuts: Built for Reliability

We're not just another ball screw and nut manufacturer. YIDI Motion runs a dedicated line in Shijiazhuang for precision ground and rolled ball screws, paired with single/double nuts in SFU/DFU designs. Established 2020, we've ramped to serve automation builders in 50+ countries.

Our nuts handle preload adjustments via end caps or spacer sets – critical for zero-backlash in servo-driven axes. Diameters from 16mm to 80mm, pitches tuned for speed or load. Ground screws hit C3-C5 accuracy, rolled options for cost-sensitive volume runs.

Why does this matter operationally? In a 3-axis mill, nut wear shows first as position errors. Our nitride-treated shafts and PEEK wipers extend cycles by 2-3x over basic grease packs. Importers note fewer re-greasing stops during long shifts.

Customization hits OEM sweet spots. Need flanged nuts for direct motor mount? Or miniature screws for 3D printers? We tweak from CAD files, no tooling minimums under 100 units. That's export manager talk – real MOQs that fit US distributor models.

Quick Buyer Tip: Always request dynamic load ratings (Ca/C0) upfront. High-speed apps need 300kN+ capacity to avoid whip.

We've shipped to German robotics firms needing IP65 seals – nuts with labyrinth paths and scrapers. USA clients pull for medical device tables, where C1 precision rules out domestic premiums.

Short story: A Texas fabricator called last month. Their old supplier's nuts chattered at 2000rpm. We spec'd a DFU set with Gothic arch balls, preload at 3%. Installed same week via DHL – problem solved.

Inside Our Hebei Factory: 100+ Staff, German/Japanese Tech

HEBEI YIDI IMPORT AND EXPORT TRADING CO., LTD. isn't a trading shell. We own the plant – 100 employees, 30% senior techs grinding screws daily. Imported Okuma grinders from Japan and DMG Mori from Germany mean sub-micron tolerances without variance.

Workflow? Raw 4140 steel arrives QC'd, turned on CNC lathes, heat-treated in-house. Thread rolling or whirling for efficiency. Nuts machined with multi-axis mills, assembled under clean-room vibes. Full trace via ERP – lot numbers from bar stock to pack.

Export scale: 50 countries, heavy into USA via LAX/ORD. We've containerized 10-ton lots without damage claims. One-stop linear motion: pair screws with our guides, splines, actuators. Cuts your vendor juggling.

Team photo ops aside, here's operational grit. Shift leads track OEE at 92% – downtime from a seized grinder? Fixed in 4 hours. That's reliability you bank on for Q4 rushes.

German-imported grinders: C3 accuracy standard.
100k sqm facility: Scale without quality dip.
ODM focus: Prototypes in 2 weeks.
ERP traceability: FDA/REACH ready.

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Where Our Ball Screws Excel – CNC, Robotics, Automation

CNC routers love our 25mm dia, 5mm pitch screws – high thrust for aluminum cuts. Robotics arms? 40mm precision ground with fixed nuts for repeatability under 5 microns.

Factory automation tables use our linear modules integrated. Medical scanners demand low noise – our damped nuts hush whip. Even packaging lines, where speed trumps mega-loads.

Procurement angle: Match screw to duty cycle. High-cycle pickers need rolled for cost; low-volume prototypes, ground for tight loops.

Detailed Technical Specifications

Here's core data. All tested per ISO 3408. Custom beyond this? Email specs.

Dia x Pitch	Accuracy	Nut Type	Dyn Load (kN)	Stat Load (kN)	Weight/m (kg)
SFU1605	C7	Single	6.2	12.5	1.2
SFU2005	C5	Double	9.5	20.1	1.8
SFU2510	C3	Flange	12.4	26.3	2.9
SFU3210	C5	Single	16.8	35.2	4.1
Custom up to 80mm	C1-C7	OEM	Per Design	Per Design	Varies

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Ball Screw And Ball Nut Supplier

Notes: Preload options light/medium/heavy. Materials: SCM415 shaft, alloy steel nut. Temps to 80°C standard.

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Certifications That Matter for Global Buyers

ISO 9001:2015 audited yearly. RoHS compliant – no hex chrome. REACH registered for EU shipments. CE marked for machinery directives. Trace docs for every batch.

Why care? US FDA audits hit linear parts in pharma. Our paperwork sails through. Japanese clients verify JIS equiv to our DIN.