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.

Self Lubricating Bearings: Cut Maintenance Costs by 50% in 6 Months – Free Samples for USA Buyers

Tired of frequent lubrication failures and downtime in your linear motion systems? YIDI Motion's self-lubricating bearings deliver maintenance-free reliability for industrial machines, ensuring seamless operations for purchasing managers and operations leads.

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By Adam Lee, Senior Linear Motion Engineer at YIDI Motion | 18+ Years in Bearing Technology | Expert in Self-Lubricating Solutions for USA Markets

Your Biggest Challenges with Traditional Bearings

As a purchasing manager in the USA industrial sector, you face relentless pressure to minimize downtime while controlling costs. Traditional lubricated bearings often fail you here.

High Maintenance Costs: Routine lubrication adds up—studies show U.S. manufacturers spend $50B annually on unplanned maintenance (Source: McKinsey).
Quality Failures: Oil leakage contaminates products, leading to 37% rework rates in food/pharma packaging lines.
Skyrocketing Shipping Expenses: Importing from unreliable Chinese suppliers means high freight and delays—average 20-30% over budget.
Downtime Disruptions: Bearing seizures in linear guides halt production, costing $260K/hour for automotive plants.
Supply Chain Volatility: Competitors undercut on price but deliver subpar quality, risking your ROI.
Regulatory Headaches: Non-compliant parts fail FDA/CE tests, delaying market entry.

Imagine slashing these issues. Discover how below →

YIDI Self-Lubricating Bearings: Your Maintenance-Free Solution

At HEBEI YIDI IMPORT AND EXPORT TRADING CO., LTD. (YIDI Motion), established in 2020, we specialize in linear motion components like ball screws, linear guides, and self-lubricating bearings. Our 100-employee factory, with 30% senior technicians, uses German/Japanese equipment for precision.

Self-lubricating bearings embed solid lubricants (PTFE, graphite, MoS2) in a bronze/polymer matrix, eliminating oil needs. Ideal for high-load, low-speed applications in linear actuators and machinery.

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

Powerful Factory Capacity: 50,000+ units/month – High-speed delivery to USA in 7-14 days.
Quality Assurance: Zero-defect rate via advanced testing; outperforms cheap imports by 40% in lifespan.
OEM/ODM Design: Custom sizes/shapes for your linear motion needs – free prototyping.
Cost Savings: 30-50% lower than USA brands, no lubrication expenses.
Global Compliance: RoHS, CE, FDA-ready for USA regs.
One-Stop Linear Motion: Pair with our ball splines for complete systems.

Technical Specifications (Optimized for SEO Crawling)

Parameter	Value	Standard
Material	Bronze Sintered with PTFE/Graphite	DIN 1850
Max Load (P)	250 N/mm²	Static
Max Load (PV)	2.5 N/mm² x m/s	Dynamic
Max Speed	2.5 m/s (dry)	-
Temperature Range	-200°C to +280°C	-
Coefficient of Friction	0.05-0.20	vs Steel
ID/OD Tolerance	H7/g6	ISO 3547
Hardness	>270 HB	Base Material
Lubrication	Self-Lubricating (Maintenance-Free)	Permanent Embed
Water Absorption	<1.5%	ASTM D570

self lubricating bearing self lubricating linear bearing self lube bearing

Custom sizes from 3mm ID to 500mm OD available. PV factor ensures 5x longer life than oil-impregnated bushings.

Performance Characteristics & Applications

These bearings excel in oscillating/pivoting motions with low speeds/high loads. Friction drops 60% post-run-in, forming a transfer film.

Linear Motion Systems: Pair with ball screws for actuators – reduces wear by 45%.
Automotive: Suspension pivots, door hinges – withstands vibrations.
Industrial Packaging: Conveyor guides – oil-free for FDA compliance.
Food Processing: Hygienic, washdown-resistant up to IP67.
Renewable Energy: Wind turbine yaw bearings – extreme temps.