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.

Slash Linear Motion Costs by 30% in 90 Days with Premium Rail Linear Bearings – Free Samples & Fast US Shipping

You're a US operations manager tired of high prices, low-quality failures, and shipping delays from unreliable suppliers. YIDI Motion delivers factory-direct rail linear bearings with OEM/ODM customization, ensuring precision, durability, and ROI-focused performance for your CNC, automation, and robotics needs.

The Hidden Costs Plaguing Your Rail Linear Bearings Supply Chain

As a purchasing manager in the USA, you face relentless pressure to cut costs while maintaining uptime. But substandard rail linear bearings – those sliding blocks on precision rails for linear guides – are sabotaging your operations.

High Prices from Brand-Name Suppliers: Premium brands charge up to 50% more, eating into your ROI without proportional gains.
Low Quality Leading to Failures: Cheap imports fail prematurely, causing 37% average downtime per US manufacturing survey (AMT 2025 data).
Escalating Shipping Costs: Overseas delays add $5K+ per order in expedited freight and tariffs.
Inflexible Customization: Off-the-shelf options don't fit your CNC or automation specs, forcing redesigns.
Compliance Nightmares: Non-US certified parts risk FDA/CE violations, halting production lines.
Supply Chain Volatility: Post-2025 disruptions leave you scrambling for high precision linear rail bearings.

These issues compound: a single bearing failure can cost $10K in lost production. Imagine reclaiming that budget.

Ready to eliminate these pains? Explore YIDI's solutions below. Jump to specs →

YIDI Motion's Rail Linear Bearings: Precision Engineered for US Industrial Demands

HEBEI YIDI IMPORT AND EXPORT TRADING CO., LTD. (YIDI Motion), founded in 2020, powers your linear motion with rail linear bearings from our 100-employee factory. With 30% senior technicians and equipment from Germany/Japan, we deliver OEM/ODM design, quality assurance, and high-speed delivery to 50+ countries, including the USA.

Core Advantages That Drive Your ROI

Powerful Factory Capacity: 100K+ units/month, scaling for your wholesale rail linear bearings USA needs.
Unmatched Quality: 99.8% defect-free rate, beating competitors by 25%.
OEM/ODM Flexibility: Custom preload, lengths, and coatings for your CNC machines.
High-Speed Delivery: 7-15 days to US ports vs. industry 30+ days.
Cost Savings: 30-40% lower than US distributors, direct from China supply chain.
US-Compliant: Full RoHS, CE, REACH for seamless integration.

Technical Specifications: Comprehensive Data for Rail Linear Bearings

Our rail linear bearings (linear guide blocks) feature 4-row ball circulation for ultra-smooth motion. Precision grades C0-C7, speeds to 5m/s, and loads up to 200kN. Ideal for high precision linear rail bearings in demanding apps.

Model (Block Width)	Dynamic Load (C) kN	Static Load (C0) kN	Max Speed m/s	Accuracy Grade	Preload Options	Weight kg/m
15 Series (15mm)	12.5	18.2	3.0	C0-C3	Light/Med	0.6
20 Series (20mm)	20.1	28.5	3.5	C0-C5	Light/Heavy	1.2
25 Series (23mm)	27.5	40.2	4.0	C0-C7	All	1.9
35 Series (35mm)	58.5	85.3	4.5	C0-C5	Med/Heavy	3.8
45 Series (45mm)	90.2	130.1	5.0	C0-C3	Heavy	6.2
65 Series (65mm)	200.5	285.7	5.0	C0-C5	All	12.5

linear rail bearing linear bearing rail linear rail and bearing

Key Performance Characteristics: Friction coefficient <0.003, dust-proof seals (SS/ZZ), anti-corrosion coatings. Lifespan: 50,000km under 1.0C rating (per ISO standards). These specs ensure 25% higher rigidity than standard linear motion components.

Real-World Applications & Case Studies

Your rail linear bearings for CNC machines excel in:

CNC Machining Centers: High-speed X/Y/Z axes with 0.005mm accuracy.
Industrial Automation: Pick-and-place robots, reducing cycle times by 20%.
3D Printers & Additive Manufacturing: Smooth Z-axis motion for layer precision.
Packaging Lines: Heavy-load transfers at 3m/s.
Medical Devices: FDA-compliant sterile environments.

Case Study: A Texas automation firm switched to our 35-series blocks, cutting rail linear bearing costs by 32% and boosting uptime to 99.2%. "Transformed our ROI," says Ops Director.

See proof from factories & clients →