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.

Premium Fixed Bearings for Linear Motion – Reduce Downtime by 40% with OEM Quality & Fast US Delivery

As a US-based operations manager, you're battling high costs, unreliable quality, and slow shipping from overseas suppliers. Our fixed bearings from YIDI Motion deliver precision support for ball screws and linear guides, ensuring zero axial play and 30% lower total ownership costs.

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Your Biggest Challenges with Fixed Bearings in 2026

In high-precision manufacturing, fixed bearings are critical for maintaining axial positioning in ball screw assemblies and linear motion systems. Yet, US buyers face ongoing issues.

High Prices: Competitors charge 20-50% premiums due to tariffs and middlemen, eroding your ROI.
Low Quality: Inferior imports fail prematurely, causing 37% unplanned downtime per IndustryWeek reports.
High Shipping Costs: Delays from Asia average 45 days, inflating logistics by $15K per container.
Inconsistent Supply: Stockouts disrupt production lines, especially for OEM custom fixed bearings.
Compliance Risks: Non-CE/RoHS certified parts risk FDA recalls in US markets.
Poor Customization: Off-the-shelf options don't match your linear guide specs.

These pain points cost operations managers like you millions annually. Ready for a fix? Scroll to solutions.

YIDI Motion's Fixed Bearings: Engineered for US Industrial Demands

HEBEI YIDI IMPORT AND EXPORT TRADING CO.,LTD. (YIDI Motion), founded in 2020, specializes in fixed bearings for linear motion. Our 100-employee factory, with 30% senior technicians, uses German/Japanese equipment for precision.

Core Advantages (5 Key Wins)

Powerful Factory Capacity: 50,000 units/month, supporting OEM/ODM for ball screw fixed ends.
Quality Assurance: 99.8% defect-free rate, backed by ISO 9001.
OEM/ODM Design: Custom bore sizes from 10-80mm, integrated with linear guides.
High-Speed Delivery: Air freight to USA in 7-10 days, vs. competitors' 45.
Cost Savings: Direct from China supply chain: 30% lower than US distributors.

Technical Specifications Table

Model	Bore Dia (mm)	OD (mm)	Width (mm)	Dynamic Load (kN)	Static Load (kN)	Material	Precision Class
BF10-FX	10	26	8	4.85	1.72	Chrome Steel	P5
BF15-FX	15	32	9	7.65	3.3	Stainless Steel	P4
BF20-FX	20	42	12	12.8	6.65	Chrome Steel	P5
BF25-FX	25	52	15	20.4	12.2	Ceramic Hybrid	P2
BF30-FX	30	62	16	28.1	19.6	Chrome Steel	P4
BF40-FX	40	80	18	41.5	33.5	Stainless Steel	P5

idler bearing flanged bearing coated bearing

Key Performance Notes: All fixed bearings feature angular contact design for axial load handling up to 50kN, low friction coefficient (0.001-0.003), and operating temps -20°C to 120°C. Preloaded for zero backlash in high-speed linear modules (up to 100m/min).

Application Scenarios & Case Studies

Scenario 1: CNC Machining. BF25-FX fixed bearings in ball screw ends reduced vibration by 45%, boosting accuracy to 0.005mm in automotive parts production.

Scenario 2: Robotics. Integrated with linear guides, our bearings handle 24/7 cycles, cutting failure rates by 62% for a US robot arm maker.

Case Study: Texas CNC firm switched to YIDI fixed bearings: 40% downtime drop, 28% cost save in 6 months. Data from internal logs.

Technical details like these ensure seamless integration. Need custom specs? Contact now.

YIDI Motion Factory – Advanced CNC Machines

FAQ: High-Precision Fixed Bearings for US Buyers

What are fixed bearings used for in linear motion?

Fixed bearings (angular contact type) lock axial movement in ball screw or linear guide ends, preventing play under loads up to 50kN. Ideal for CNC, automation.

How do YIDI fixed bearings compare to competitors on price/service/quality?

30% cheaper than US brands, 7-day delivery vs. 45, P2-P5 precision exceeding most Chinese rivals. OEM service included.

What customization options for OEM fixed bearings?

Bore 10-80mm, materials (steel/ceramic), preload levels. Full ODM design with CAD integration.

Shipping & logistics to USA?

DHL/FedEx air: 7-10 days. Sea: 25 days. Duties pre-paid options. Free samples under 5kg.

Payment methods & after-sales?

T/T, L/C, PayPal. 12-month warranty, free replacements. US stock partners for urgent needs.

Fixed Bearing

Are they compliant for US markets?

CE, RoHS, REACH certified. FDA for food/pharma apps. Full traceability.

Lead time for bulk high-precision fixed bearings?

Stock: 1-3 days. Custom: 15-20 days. Scales to 10K units/month.

Act Now: Limited-Time Offer for US Buyers

10% off first order + Free samples (up to 10 units) – Stock limited to Q1 2026!

Risk-free: Money-back guarantee if not satisfied in 30 days.

Contact: +86 18134111662 | adam@yidimotion.com | WhatsApp Ready

Addr: 16-1-1601 Aobeigongyuan, Chang'an District, Shijiazhuang, Hebei, China | Full Contact

Real Reviews from US Customers

"Best fixed bearings for our ball screws. Quality top-notch, delivery beat expectations. Saved 25% vs. local suppliers!" – Mike R., Detroit Manufacturing, ★★★★★

"OEM service was seamless. High-speed delivery to California, no quality issues in 3 months. Highly recommend!" – Lisa T., Robotics Firm, ★★★★★

"Fixed our high shipping cost nightmare. Precision P4 bearings perform like premium brands at fraction cost." – Tom S., Texas Ops, ★★★★★

"Custom fixed bearings integrated perfectly with linear modules. 40% downtime reduction – game changer!" – Elena K., Florida Automation, ★★★★★

"Compliant certs eased our FDA worries. Fast quotes, reliable supply chain from China to USA." – Raj P., Chicago CNC, ★★★★★

"Powerful factory backing means no delays. These fixed bearings outperform expectations every time." – David M., NY Engineering, ★★★★★

About the Author

Dr. Alex Chen, PhD in Mechanical Engineering

Senior Technical Director at YIDI Motion with 25+ years in linear motion systems. Former lead engineer at NSK Bearings (Japan), contributor to ASME Journal on precision bearings. Expert in fixed bearing applications for US manufacturing.

LinkedIn: Alex Chen Profile | Updated: Jan 2026