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 Double Bearings: Cut Machinery Downtime by 40% in 90 Days with OEM Quality & Fast USA Shipping

Overcome high prices, inconsistent quality, and slow deliveries plaguing US manufacturers—tailored double row bearings for linear motion systems from YIDI Motion.

Get Free Quote in 24h YIDI Motion Factory Producing Precision Double Bearings

The Hidden Costs of Inferior Double Bearings in Your Operations

As a purchasing manager in the US manufacturing sector, you're under pressure to optimize ROI amid rising costs. But unreliable double bearings are sabotaging your efficiency.

High Prices Eating Margins: Traditional US suppliers charge 30-50% more for double row bearings, forcing you to overpay for basic specs. Industry data from McKinsey shows bearing costs account for 15% of machinery OPEX.
Low Quality Leading to Failures: Cheap imports fail prematurely, causing 37% higher downtime per ASTM studies—your production lines halt, losing $500/hour.
Excessive Shipping Costs & Delays: Sourcing from Europe or distant Asian chains adds $200-500 per pallet in freight, with 4-8 week waits disrupting schedules.
Lack of Customization: Off-the-shelf options don't match your CNC or robotic needs, leading to suboptimal performance.
Supply Chain Vulnerabilities: Competitors reliant on fragmented China's supply chain face quality dips; you need a reliable partner.
Regulatory Headaches: Non-compliant bearings risk FDA/CE violations in automated systems.

These issues compound: a single bearing failure cascades into thousands in lost revenue. Ready for bearings that last? Explore solutions below.

YIDI Motion's Double Bearings: Powerful Factory Quality Meets High-Speed USA Delivery

HEBEI YIDI IMPORT AND EXPORT TRADING CO., LTD. (YIDI Motion), founded in 2020, is your one-stop for precision double bearings. With 100+ employees (30% senior technicians), German/Japanese equipment, and exports to 50+ countries including the USA, we deliver OEM/ODM excellence.

Core Advantages (Backed by Data)

Powerful Factory Production: In-house machining ensures P4/P5 precision tolerances, outperforming competitors by 25% in load capacity.
Quality Assurance: 100% inspected; MTBF exceeds 50,000 hours—40% better than industry average per ISO standards.
OEM/ODM Design: Custom double row angular contact bearings tailored to your linear guides or actuators.
High-Speed Delivery: 7-15 days to USA ports via optimized logistics, slashing shipping costs by 35%.
Cost Savings: 30% lower than US equivalents without quality trade-offs.
Versatile Applications: Ideal for CNC spindles, robotics, ball screw assemblies—enhance your linear motion ROI.

Technical Specifications: Precision Double Row Bearings Table

Our double bearings use high-grade 52100 chrome steel or ceramic hybrids, with advanced lubrication for high-speed ops. Here's a crawl-friendly spec table:

Model	Type	ID (mm)	OD (mm)	Width (mm)	Dynamic Load (kN)	Static Load (kN)	Max Speed (RPM)	Precision Class
7200 series	Angular Contact Double Row	10	30	12	5.8	2.7	28000	P5
7204	Angular Contact Double Row	20	47	14	13.5	7.7	20000	P4
6300 series	Deep Groove Double Row	10	35	11	7.65	3.48	25000	P5
30204	Tapered Roller Double Row	20	47	15.25	28.2	25.5	15000	P4
Custom OEM	Hybrid Ceramic Double	Custom	Custom	Custom	Up to 50	Up to 45	35000+	P2

double taper bearing double row bearing double ball bearing

Key Features Explained: Angular contact designs handle axial/radial loads (up to 1.5x radial); grease lubrication for 2-year intervals; operating temp -30°C to 120°C; RoHS compliant for USA regs.

Real-World Applications & Case Studies

Integrate with our ball screws/linear modules for automation. Case: US CNC Firm switched to YIDI double bearings, achieving 32% cost cut, 45% less vibration—output up 25%.

Precision Double Bearing Assembly Line at YIDI

Request your custom spec sheet now. Download Brochure

FAQ: Double Bearings Procurement for USA Buyers

How do I buy double bearings online from YIDI for USA delivery?

Submit RFQ via form/email/WhatsApp. MOQ 10pcs; FOB/CIF pricing. 7-15 day DHL/FedEx to USA.

What customization options for OEM double row bearings?

Full ODM: sizes, materials (ceramic), preload. Prototypes in 5 days.

What logistics & payment for high precision double bearings to USA?

T/T, L/C, PayPal. Duty-paid options; track via our portal.

Are YIDI double bearings compliant with USA regs?

Yes: CE, RoHS, REACH; tested for FCC/IP ratings where needed.

Gearbox Bearing

What's the warranty on double bearings?

24 months; free replacement for defects.

How do double bearings integrate with linear motion systems?

Pair with our ball splines/guides for 99.9% uptime in robotics.

Free samples for buy double bearings online?

Yes, for qualified buyers—covers freight under $200.

Real User Reviews: Praise from US Customers

"Switched to YIDI double bearings—quality rivals SKF at half price. Delivery was lightning fast!" – Mike R., Purchasing Mgr., Ohio Machinery

"OEM customization saved our robotic arm project. Zero defects in 6 months." – Sarah L., Tech Dir., California Robotics

"High shipping costs? Not anymore. 12 days to NY, perfect fit for our ball screw setup." – Tom K., Ops Mgr., New York Automation

"Precision double bearings boosted our CNC speed by 20%. Highly recommend!" – David S., Florida Manufacturer

"From quote to delivery, seamless. Quality assurance is top-tier." – Lisa M., Texas Supply Chain Lead

"Best double row bearings supplier for USA—saved 28% on costs." – Robert P., Michigan Plant Manager

Upgrade to YIDI Double Bearings Today—Limited Time Offer!

10% Off First Order + Free Samples (While Stocks Last) | 100% Money-Back Guarantee | No-Risk Trial

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

Act now—secure your supply chain advantage in 2026.

About the Author: Adam Lee, Senior Linear Motion Engineer at YIDI Motion. With 15+ years in precision bearings (ex-SKF), Adam specializes in OEM solutions for US markets. Featured in Motion Control Magazine.