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 Ball Screw and Ball Nut: Precision Linear Motion at 30% Lower Costs – OEM from China's Leading Factory

Solve high-precision positioning challenges for your CNC machines and automation systems with reliable wholesale ball screw and ball nut assemblies. Tailored for US manufacturers seeking ROI-driven suppliers.

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Your Biggest Challenges with Wholesale Ball Screw and Ball Nut Sourcing

As a US operations manager in 2026, you're under pressure to optimize supply chains amid rising tariffs and logistics disruptions. High prices from domestic suppliers eat into your margins, while imported options often fail on quality.

High Prices: Premium US brands charge 2-3x more than necessary, forcing you to compromise on volume orders.
Low Quality & Failures: Cheap alternatives from unreliable sources lead to backlash errors up to 0.05mm, causing 37% downtime increase in CNC operations.
Skyrocketing Shipping Costs: Delays of 8-12 weeks from Asia inflate costs by 25%, disrupting your just-in-time production.
Inconsistent Specs: Mismatched ball nut preload and lead accuracy hampers high-speed applications like robotics.
Limited Customization: No OEM/ODM options for your specific machine tolerances.
Compliance Risks: Uncertainty with RoHS, CE, and US import regs leads to customs holds.

These issues result in lost productivity and ROI erosion. Discover how YIDI Motion fixes this.

YIDI Motion's Wholesale Ball Screw and Ball Nut: Engineered for Precision and Profit

Founded in 2020, HEBEI YIDI IMPORT AND EXPORT TRADING CO.,LTD. (YIDI Motion) delivers wholesale ball screw and ball nut from our 100-employee factory in Shijiazhuang, China. With senior technicians (30%+ of staff) and German/Japanese equipment, we export to 50+ countries including the USA. Beat competitors on price, service, quality, and China's efficient supply chain.

YIDI Motion Factory – Advanced Ball Screw Production Line

Core Advantages (USP)

Powerful Factory Capacity: Produce 10,000+ units/month, supporting high-volume wholesale.
Quality Assurance: 100% inspected; accuracy to C0-C5 classes, reducing failures by 50%.
OEM/ODM Design: Custom leads, nuts (DFU, BFU types), and preloads for your specs.
High-Speed Delivery: 7-14 days to USA ports via optimized logistics – cut shipping costs 30%.
One-Stop Linear Motion: Pair with linear guides, actuators, splines, bearings.
ROI-Focused Pricing: Wholesale at factory-direct rates, 30% below market.

Technical Specifications Table – Optimized for SEO and Crawlers

Our wholesale ball screw and ball nut cover diameters 8-80mm, leads 2-20mm, lengths up to 6m. Materials: High-carbon chrome steel (GCr15), hardened to HRC58-62. Ball nut types: Single (SFU), Double (DFU), Flange (BFU), Circular (SFI).

Model	Dia (mm)	Lead (mm)	Accuracy Class	Dyn. Load (kN)	Max Speed (m/min)	Preload
SFU1605	16	5	C7	18.5	120	Light
DFU2005	20	5	C5	25.2	150	Heavy
SFI2510	25	10	C3	32.8	200	Medium
BFU3216	32	16	C0	45.1	250	Heavy
SFU5010	50	10	C5	68.4	180	Light

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Full catalog: Diameters 8-80mm, lengths to 6000mm, accuracies C0-C10. Custom machining available.

Performance Characteristics

Ball screws convert rotary to linear motion with 90-95% efficiency – far superior to leadscrews (20-40%). Low friction minimizes heat, enabling speeds up to 250m/min. Preload eliminates backlash for precision positioning ±0.003mm.

High Rigidity: Double-nut designs handle axial loads up to 100kN.
Low Noise/Vibration: Optimized ball circulation reduces operation noise to <65dB.
Long Life: 50,000-100,000km travel life under rated loads (L10 criteria).

Application Scenarios & Case Studies

Ideal for precision ball nut suppliers USA needs in:

CNC Machines: Spindle drives; Case: US fabricator reduced cycle time 25% with DFU2010.
Robotics/Automation: Joint actuators; Achieved 0.01mm repeatability.
Semiconductor: Wafer handling; C3 accuracy for cleanroom use.
Medical Devices: Surgical robots; RoHS-compliant materials.
3D Printers/Aerospace: High-speed, lightweight assemblies.

A Midwest CNC shop switched to our buy ball screw wholesale program: 37% cost reduction, 14-day delivery. Schedule your demo today.