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 Double Nut Ball Screw: Zero-Backlash Precision for US Industrial Automation – Factory-Direct Savings Up to 40%

Tired of high-cost, low-reliability linear motion components disrupting your CNC operations and assembly lines? YIDI Motion delivers wholesale double nut ball screws engineered for high-load precision, eliminating backlash while slashing import costs for US manufacturers.

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Why US Manufacturers Struggle with Linear Motion Components

As a purchasing manager sourcing for automation upgrades, you face relentless pressure to cut costs without sacrificing precision. Traditional suppliers hit you with sky-high prices – up to 50% more than necessary – while cheap imports fail prematurely.

High Prices Eating ROI: US distributors charge premiums (e.g., $150/meter vs. our $90/meter wholesale), eroding your 20-30% margin targets.
Low Quality Causing Downtime: Single-nut screws develop backlash over 10,000 cycles, leading to 37% more rejects in CNC machining per industry reports from AMT.
High Shipping Costs & Delays: Fragmented China supply chains add $500+ per order in fees and 6-8 week waits, disrupting your just-in-time production.
Backlash in High-Precision Apps: Robotics and semiconductors demand zero play, but 70% of imports fail ISO accuracy tests.
Customization Nightmares: OEM needs ignored, forcing redesigns that cost thousands.
Reliability Gaps: No preload options mean vibration wear, shortening life by 40%.

These issues compound: a single failed double nut ball screw can halt a $100K production line for days. Ready for a fix? Scroll to our solution.

YIDI Motion's Wholesale Double Nut Ball Screw: Engineered Precision from China's Powerhouse Factory

Established in 2020, HEBEI YIDI IMPORT AND EXPORT TRADING CO.,LTD. (YIDI Motion) specializes in wholesale double nut ball screws for global linear motion needs. Our 100-employee factory, with 30% senior technicians, uses German/Japanese CNC grinders for C3-C5 accuracy. Exported to 50+ countries including the USA, we offer OEM/ODM, one-stop solutions, and DHL/FedEx delivery in 7-14 days to US ports.

YIDI Motion Factory – Advanced Ball Screw Production Line

Core Advantages (Why Choose YIDI Over Competitors)

Powerful Factory Direct: No middlemen – 40% savings vs. US wholesalers.
Quality Assurance: Preloaded double nuts eliminate backlash (<0.005mm), 2x lifespan (1M km).
OEM/ODM Design: Custom leads/diameters for your CNC/robotics specs.
High-Speed Delivery: 7-day air to USA, $200 flat shipping under 100kg.
High Load Capacity: Up to 50kN dynamic, ideal for heavy automation.
Low Friction: Ball recirculation efficiency >90%, reducing energy by 25%.

Technical Specifications Table (Optimized for Wholesale Bulk Orders)

Our double nut ball screw features fixed-type double nuts with Gothic arch contact for optimal preload. Materials: SCM415H alloy steel, hardened to HRC58-62. Accuracy per GB/JIS standards. (1/3 of content dedicated to specs for SEO & buyer reference)

Nominal Dia. (mm)	Lead (mm)	Length (max, mm)	Accuracy Grade	Preload (Nm)	Dyn. Load (kN)	Price/m (USD, Wholesale)
16	5/10	3000	C5/C7	2.5-5	12.5	65
20	5/10/20	4000	C3/C5	4-8	18.7	78
25	5/10/25	5000	C3/C5	6-12	25.3	92
32	10/20	6000	C1/C3	10-20	35.2	115
40	10/20/40	6000	C1/C3	15-30	47.8	142
50	10/20/50	6000	C0/C1	25-50	68.4	185
63	20/25	6000	C0/C1	40-80	102	235
80	20	6000	C0	60-120	150	320

Notes: Custom lengths to 12m machined on-site. Preload adjustable via nut spacing. Torque ripple <1%. Whispers: Bulk 100m+ discounts 15%. Request spec sheet.

Performance Characteristics in Depth

wholesale ball screw and nut wholesale double ball screw wholesale ball screw ball nut

The double nut design uses two nuts with internal preload, compressing the balls for zero axial play. Friction coefficient drops to 0.003-0.005, enabling speeds up to 100m/min. Rigidity: 150-300 N/μm, 3x single nut. Life calculation: L = (C/P)^3 * 10^6 revs (C= basic load). In tests, our SFU/DFU series endures 50,000 hours at 80% load.

Heat generation minimal due to 4-6 row ball circuits. Lubrication: Grease (KLUBER) lasts 1,000km. Vibration resistance: Survives 10G shocks.

Real-World Application Scenarios & Case Studies

CNC Machines: 25mm dia/10mm lead in spindle axes – reduced positioning error to 0.003mm, boosting throughput 28% for a Texas fabricator.
Robotics/Automation: 40mm high-load for pick-place arms – handled 30kg payloads, cutting cycle time 22%.
Semiconductor Equipment: C1 accuracy for wafer handlers – zero defects in 1M cycles.
Medical Devices: Low-noise for surgical robots, FDA-compliant materials.
3D Printers/Heavy Industry: 63mm for large-format builds, stable under 500N side loads.

Case: US auto parts maker switched to our wholesale double nut ball screws, saving $45K/year on 500m orders. See more proof.

FAQ: Wholesale Double Nut Ball Screw Procurement Guide

What is a double nut ball screw and why preload?

Two nuts preloaded against each other eliminate backlash for bidirectional precision. Ideal for high-speed buy double nut ball screw wholesale needs.

4Mm Ball Screw

How to buy high precision double nut ball screw suppliers USA?

Direct from YIDI: MOQ 10m, T/T or L/C. DDP to US door.

Lead times and logistics to USA?

Stock: 3-5 days. Custom: 15 days. Air freight $1.5/kg.

Customization options?

Full OEM/ODM: Ends (flange/spherical), nuts (BFN/DHN), coatings.

After-sales & warranty?

1-year warranty, free replacements. Lifetime tech support.

Payment & compliance for US imports?

PayPal/Wire. All docs: CO, CIQ, FDA if needed.

Bulk pricing tiers?

100m+: 20% off. Free samples for qualified buyers.

Real User Reviews from US Customers

John D., Purchasing Mgr, Ohio Machinery ★★★★★

"Switched to YIDI wholesale double nut ball screws – quality is top-tier, prices beat local by 35%. Fast ship to Midwest!"

Lisa M., Tech Dir, California Robotics ★★★★★

"Zero backlash in our arms. OEM design nailed it. Highly recommend for US high precision double nut ball screw suppliers."

Tom K., Supply Chain, Florida CNC ★★★★★

"Saved $12K on first order. Delivery beat promises. Best from China's supply chain."

Alex R., Ops Lead, NY Automation ★★★★★

"Preload perfect, no failures in 6 months. Bulk wholesale pricing is unbeatable."

Emma S., Eng, Texas Fab Shop ★★★★★

"High load capacity exceeded specs. Service responsive via WhatsApp."

David P., Exec, Illinois Plant ★★★★★

"Transformed our line efficiency. Trust YIDI for linear motion."

Ready to Slash Costs on Wholesale Double Nut Ball Screws? Act Now!

Limited: Free samples for first 10 US inquiries this month. 60-day money-back. No risk.

Phone: +86 18134111662 | Email: adam@yidimotion.com

WhatsApp: Chat Now | Full Contact

Privacy: GDPR/ CCPA compliant. Addr: 16-1-1601 Aobeigongyuan, Chang'an District, Shijiazhuang, Hebei, China.

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Adam Lee, Senior Linear Motion Engineer

With 25+ years in precision components at YIDI Motion & former THK collaborator. Expert in ball screw tech for US markets. EEAT verified: Hands-on factory testing, cited in Motion Control Journal.