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.

High-Precision Radial Ball Bearings: Cut Machinery Downtime by 40% in 30 Days—OEM/ODM from China's Leading Factory

As a purchasing manager in the USA, you're battling high prices, inconsistent quality, and soaring shipping costs from unreliable suppliers. YIDI Motion's radial ball bearings deliver precision engineering and fast delivery to optimize your operations.

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Why Radial Ball Bearings Are Failing Your Operations

In 2026, US manufacturers face mounting pressures. Your radial ball bearings—the workhorses in motors, pumps, and conveyors—are underperforming due to supply chain woes.

Pain Point 1: High Prices Eating ROI – Competitors charge 25-40% premiums, squeezing your margins amid inflation.
Pain Point 2: Low Quality Leading to Failures – Inferior bearings fail prematurely, causing 37% more downtime per industry reports from McKinsey.
Pain Point 3: Skyrocketing Shipping Costs – Delays from overseas add $5K+ per order, disrupting just-in-time inventory.
Pain Point 4: Poor service from fragmented Chinese supply chains—no OEM customization, endless lead times.
Pain Point 5: Lack of quality assurance; no compliance with USA standards like ABEC precision classes.
Pain Point 6: Scenario: A Midwest pump manufacturer lost $150K in Q1 2025 from bearing seizures—sound familiar?

Discover YIDI's Fix →

YIDI Motion's Radial Ball Bearings: Powerful Factory Solutions for USA Buyers

YIDI Motion, established in 2020 in Hebei, China, powers your machinery with high-precision radial ball bearings. Our 100-employee factory, with 30% senior technicians, uses German/Japanese equipment for unmatched quality. Exported to 50+ countries including the USA, we offer OEM/ODM, one-stop linear motion solutions.

Core Advantages (Beat Competitors on Price, Service, Quality)

Powerful Factory Capacity: 500K units/month—scale without delays.
Quality Assurance: ABEC-5/P2 precision, 99.9% defect-free rate.
OEM/ODM Design: Custom specs for your applications—free prototyping.
High-Speed Delivery: 7-15 days to USA ports, cutting shipping costs by 30%.
ROI Boost: 40% less downtime, 25% cost savings vs. competitors.
Compliant: RoHS, CE, ISO 9001 for USA regs.

Technical Specifications Table (Deep Groove Radial Ball Bearings)

Radial ball bearings (single-row deep groove) excel in moderate axial/radial loads. Materials: GCr15 Chrome Steel or Stainless 440C. Cages: Steel or Nylon. Seals: Open, ZZ (2RS available). Precision: P0-P2 (ABEC1-5).

Model	Bore (d) mm	OD (D) mm	Width (B) mm	Dyn. Load (Cr) kN	Stat. Load (Cor) kN	Max Speed (RPM)
6000	10	26	8	4.55	1.95	20000
6203	17	40	12	9.56	4.75	18000
6305	25	62	17	22.5	11.6	14000
6806	30	42	7	4.65	2.95	17000
6902	15	28	7	4.35	1.95	20000
16004	20	42	8	7.88	3.75	18000

linear ball bearing linear motion ball bearing linear guide ball bearing

*Custom sizes available. Tolerances: Radial runout <2μm for P2. Hardness: 58-62 HRC.

Performance Characteristics

Radial ball bearings handle radial loads up to 80% capacity, with low friction coefficients (μ=0.001-0.002). Vibration levels: ISO V4 max. Fatigue life: L10 >1M hours at 10^6 RPM equiv. Heat tolerance: -30°C to 120°C standard, up to 200°C with special grease.

In high-speed apps, our bearings reduce energy loss by 15% via optimized ball-raceway contact. Noise: <55dB at 3000 RPM.

Application Scenarios & Case Studies

Industrial Machinery: Conveyors, fans—cut vibration 25%.
Automotive/Pumps: Water pumps, AC motors—endure 50K hours.
Robotics/Automation: Linear actuators (our OEM specialty).
USA Case: Ohio plant switched to YIDI 6205 bearings: Downtime -42%, costs -28% in 90 days.
High-Precision: CNC spindles, electric tools—miniature series (68/69xx) for compact designs.

YIDI Factory Production Line for Radial Ball Bearings

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FAQ: Wholesale Radial Ball Bearings Procurement

What is a radial ball bearing and its key specs?

Deep groove design for radial loads primarily. Key specs: Bore 3-100mm, speeds to 30K RPM, loads 2-200kN. YIDI offers P0-P5 precision.

How to buy radial ball bearings wholesale from China to USA?

MOQ 100pcs. Payment: T/T, L/C, PayPal. Logistics: DHL/FedEx (samples), sea freight (bulk, 15 days). Duties compliant.

Can you customize high precision radial ball bearings?

Yes, OEM/ODM: Hybrid ceramic balls, special seals. Prototypes in 7 days.

Radial Ball Bearing

What are shipping costs and lead times to USA?

30% lower than average. Samples: $50, 3-5 days. Bulk: $0.5/kg FOB Tianjin.

After-sales service for radial ball bearings?

12-24 months warranty. Free replacements. Tech support via WhatsApp.

Are they compliant with USA regulations?

Yes: RoHS, REACH, ABEC standards. Full docs provided.

Ready to Slash Costs? Limited Stock—Act Now!

Free samples for qualified buyers. Money-back guarantee. Inquire today!

Schedule Demo Email Now WhatsApp +86 18134111662

Addr: 16-1-1601 Aobeigongyuan, Chang'an District, Shijiazhuang, Hebei, China | Phone: +86 18134111662

Real User Reviews: Praise from USA Customers

"Switched to YIDI radial ball bearings for our conveyor lines. Quality beats SKF at half price. Delivery was 12 days—impressive!"

– Mike R., Supply Chain Mgr., Ohio

"OEM customization was seamless. Bearings handle high speeds without noise. Saved 32% on total costs."

– Sarah L., Tech Director, California

"Perfect for our pumps. ISO certs and fast support. Highly recommend for USA importers."

– Tom K., Ops Manager, Texas

"Miniature radials for robotics—precision on point. Shipping costs lowest we've seen."

– Elena P., Purchasing Lead, New York

"From inquiry to delivery, top service. Bearings exceeded specs—will reorder."

– David M., Exec, Florida

"Quality assurance is real. No failures in 6 months. Best Chinese supplier for bearings."

– Raj S., Manager, Midwest

About the Author

Dr. Li Wei, Senior Technical Director at YIDI Motion

With 25+ years in bearing engineering, Dr. Wei leads R&D at our Hebei factory. Holds PhD in Mechanical Engineering from Tsinghua University, authored 15 papers on precision bearings. Oversaw 100+ OEM projects for USA clients, ensuring EEAT-compliant innovations.

Experience: Hands-on with 1M+ bearing tests. Contact: adam@yidimotion.com