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 Round Rack and Pinion Gear: Cut Linear Motion Costs by 30% in 90 Days with OEM Quality from China

Struggling with unreliable rack and pinion systems that drive up downtime and costs for your USA operations? YIDI Motion delivers high-precision round rack and pinion gears tailored for CNC, robotics, and automation—backed by German/Japanese tech and fast global shipping.

Get Free Quote in 24h

Your Biggest Challenges with Round Rack and Pinion Gears

As a purchasing manager or technical director in the USA, you're under pressure to optimize ROI while ensuring precision in demanding applications like CNC machining and automation.

High Prices Eating into Budgets: Competitors charge premiums—up to 50% more for imported gears—without proportional quality gains.
Inconsistent Quality Leading to Failures: Low-grade racks warp under load, causing 15-20% downtime in high-speed operations, per industry reports from AMT.
Prohibitive Shipping Costs & Delays: Overseas suppliers from non-optimized chains add $500-2000 per order in fees and 8-12 week waits.
Lack of Customization: Off-the-shelf gears don't match your exact modulus or length needs, forcing costly modifications.
Poor After-Sales Support: No local compliance or quick replacements, risking FDA/CE non-compliance in regulated sectors.
Supply Chain Vulnerabilities: Disruptions from unreliable Chinese sources amplify risks in 2026's volatile logistics.

Sound familiar? Keep reading to see how YIDI Motion flips the script.

Discover the Solution →

YIDI Motion's Round Rack and Pinion Gear: Engineered for Precision and Profit

Founded in 2020, HEBEI YIDI IMPORT AND EXPORT TRADING CO.,LTD. (YIDI Motion) leverages a 100-employee factory with 30% senior technicians and advanced German/Japanese equipment. We specialize in linear motion components like ball screws, linear guides, and now high-precision round rack and pinion gears—exported to 50+ countries including the USA.

Core Advantages (Backed by Data)

Powerful Factory Capacity: Produce up to 5,000m racks/month—50% faster delivery than competitors.
Quality Assurance: DIN 7 accuracy grade, hardened steel (45# or 42CrMo), tested to 1.5x load capacity.
OEM/ODM Design: Custom modulus 1-10, lengths to 3m, helical/straight options—tailored for your CNC or robotic needs.
High-Speed Delivery: USA shipments in 7-14 days via optimized DHL/FedEx, cutting shipping costs by 37%.
ROI-Focused: Clients report 30% cost reduction vs. US/EU suppliers, per internal case studies.
One-Stop Linear Motion: Pair with our ball splines or bearings for complete systems.

Technical Specifications Table

Our round rack and pinion gears are optimized for high-load, high-speed applications. Below is a comprehensive spec table for easy reference and SEO crawling:

Parameter	Round Rack	Pinion Gear	Performance Notes
Module (m)	1-10	1-10 (matching)	Precision pitch error <0.015mm
Length (mm)	100-3000 (custom segments)	20-200 teeth	Ground finish Ra 0.8μm
Material	C45/42CrMo (HRC 50-58)	20CrMnTi (carburized)	Corrosion-resistant options
Accuracy Grade	DIN 7 / AGMA 10	DIN 7 / AGMA 10	Backlash adjustable to 0.05mm
Tooth Type	Straight/Helical (15-30°)	Helical matching	Quiet operation <70dB
Max Load (N/mm)	15,000	Torque up to 500Nm	Dynamic efficiency 98%
Surface Treatment	Black oxide / Phosphating	Nitriding	Wear life >10,000km

round gear rack and pinion rack and pinion gear pinion rack gear

These specs ensure round rack and pinion gears excel in high-precision tasks. For instance, helical designs reduce vibration by 40% in high-speed actuators.

Application Scenarios & Case Studies

Technical details matter: Our gears convert rotary to linear motion with minimal backlash, ideal for:

CNC Machines: X/Y axis drives—achieve 0.01mm repeatability, boosting throughput by 25% (e.g., USA automotive client).
Robotics & Automation: SCARA arms and AGVs—handle 10m/s² acceleration without slippage.
Solar Trackers: Dual-axis positioning—endure 200km/h wind loads, per NREL standards.
3D Printers/Industrial Printers: Smooth Z-axis motion for layer accuracy <50μm.
Medical Equipment: Precise lab automation—FDA-compliant materials available.

YIDI Motion Factory - Advanced Gear Production Line

Our Shijiazhuang factory: Precision grinding in action.

Case Study: A California CNC firm switched to our custom round rack and pinion gear (m=3, 2m length), reducing failure rates by 45% and saving $15K/year.

See Proof from USA Clients →