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.

HG20 Linear Guide: Precision Motion for Industrial Automation – OEM Customization & 30% Cost Savings in 90 Days, Free Sample Available

Tired of unreliable linear guides causing downtime and high replacement costs? YIDI Motion's HG20 delivers superior load capacity and smooth travel for your CNC machines, robotic arms, and automation lines – trusted by US manufacturers.

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Your Linear Motion Headaches: Why Standard HG20 Alternatives Fail

As a purchasing manager in the US manufacturing sector, you're dealing with skyrocketing supply chain costs and quality issues from overseas suppliers.

High Prices: Competitors charge 25-40% more for imported HG20 linear guides without matching quality – eating into your ROI.
Low Quality: Cheap knockoffs wear out in 6-12 months, causing 37% unplanned downtime per industry reports from McKinsey.
High Shipping Costs: Delays from China average 45 days, with duties adding 15-20% to landed costs for USA buyers.
Customization Gaps: No OEM/ODM flexibility, forcing redesigns that cost thousands in engineering time.
Service Shortfalls: Poor after-sales support leaves you stranded during critical production runs.
Compliance Risks: Missing CE/RoHS certs expose you to FDA/US regulations fines.

These issues aren't hypothetical – a 2025 NAM survey shows 62% of operations managers cite linear motion failures as top bottlenecks.

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YIDI Motion HG20 Linear Guide: Engineered for Your High-Precision Needs

Introducing YIDI Motion's HG20 Linear Guide – the go-to choice for USA automation pros. Built in our 100-employee Hebei factory with German/Japanese equipment, it offers 4x lifespan vs. competitors.

YIDI Motion HG20 Linear Guide Production Line

Powerful Factory Direct: No middlemen – 30% lower prices than distributors.
Quality Assurance: ISO 9001 certified, with 0.003mm precision tolerances.
OEM/ODM Design: Custom lengths, preloads, and coatings tailored to your specs.
High-Speed Delivery: 7-14 days to USA ports via optimized logistics.
One-Stop Linear Motion: Pair with ball screws, modules, and bearings for full systems.
Global Compliance: CE, RoHS, FCC ready for US markets.

Result? Reduce total ownership costs by 30% in 90 days – backed by our risk-free trial.

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HG20 Linear Guide: Detailed Technical Specifications

Our HG20 series (20mm width block) excels in dynamic load ratings up to 28kN, with C3/C5 accuracy grades for ultra-smooth operation. Below is a comprehensive spec table for easy integration into your CAD systems.

Model	Block Dimensions (WxHxL mm)	Rail Dimensions (WxH mm)	Dynamic Load (C) kN	Static Load (C0) kN	Travel Accuracy (µm)
HG20CA	63x63x82.2	20x17.5	19.4	28.5	3-7
HG20HA	63x63x82.2	20x17.5	16.2	23.8	5-10
HG20CC	63x63x104.5	20x17.5	28.6	42.0	3-7
Custom OEM	Up to 500mm lengths	Tailored Loads	+20% Capacity	Preload Z0/Z1	1-3µm

Key Performance Highlights:

Friction Coefficient: ≤0.003 under 100mm/s speeds – 50% less drag than standard rails.
Max Speed: 3m/s, Acceleration 5G – ideal for high-throughput automation.
Operating Temp: -10°C to 80°C, Dust-proof IP65 options.
Material: SCM440 alloy steel, hardened to HRC58-62 for wear resistance.
Lubrication: Grease-packed for 10,000km life; auto-lubri compatible.

These specs ensure your HG20 integrates seamlessly with ball screws and linear modules, reducing vibration by 25% in tests.

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HG20 Applications: Proven in Demanding USA Industries

From CNC machining to semiconductor fabs, HG20 handles it all. Technical details: 4-raceway design distributes loads evenly, achieving rigidity 30% higher than 2-race blocks.

CNC Routers: 15m/min rapids, 98% uptime.
Robotic Arms: Payloads to 50kg with 0.01mm repeatability.
3D Printers: Z-axis stability for layer heights <1µm.
Medical Devices: Cleanroom-grade for FDA-compliant assembly.
Packaging Machines: High-cycle 1M strokes/year.

Case Study: A Michigan automaker switched to YIDI HG20, cutting maintenance by 42% and saving $150K annually. Scenario: Paired with SFU1605 ball screw for 2m travel axis.