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 Combination Bearings: Reduce Downtime by 40% in 30 Days – Free Samples for USA Buyers

As a USA-based operations manager, you're battling high prices, low-quality bearings, and soaring shipping costs from unreliable suppliers. YIDI Motion's combination bearings deliver precision radial-axial support, OEM customization, and factory-direct pricing for seamless industrial integration.

No commitment – Ships from our Hebei factory to USA ports in 7-10 days.

The Hidden Costs of Inferior Combination Bearings in USA Manufacturing

Your production lines demand reliable radial and axial load handling, but subpar bearings from competitors create chaos.

High Prices Eating ROI: Overseas suppliers charge 20-30% premiums due to middlemen, per McKinsey's 2025 supply chain report.
Low Quality Leading to Failures: 45% premature wear from inconsistent tolerances, causing 37% more downtime (US Manufacturing Institute data).
Skyrocketing Shipping Costs: Delays average 4-6 weeks from China chains, inflating logistics by 25%.
Customization Nightmares: No OEM/ODM flexibility, forcing redesigns that add $50K+ per line.
Unreliable Load Performance: Axial thrust fails under high-speed ops, risking safety recalls.
Poor After-Sales: No local compliance (RoHS, CE) support for USA regs.

These issues cost USA firms $12B annually in bearing-related losses. Ready to fix it?

YIDI Motion Combination Bearings: Engineered for USA Industrial Demands

HEBEI YIDI IMPORT AND EXPORT TRADING CO.,LTD. (YIDI Motion), founded in 2020, powers your operations with combination bearings blending needle roller radial support and thrust axial capacity in one compact unit.

Core Advantages

Powerful Factory Backbone: 100+ employees, 30% senior technicians, German/Japanese CNC machines for 99.8% defect-free rate.
Quality Assurance: ISO 9001 certified, full traceability from raw steel to shipment.
OEM/ODM Design: Custom specs in 7 days – from prototype to 10K units.
High-Speed Delivery: USA air/sea in 7-15 days, beating competitors by 50%.
Cost Savings: Factory-direct pricing 30% lower than distributors.
Global Reach: Exported to 50+ countries, including USA giants.

YIDI Motion Factory – Advanced CNC Production Line

Our 10,000sqm facility in Shijiazhuang, China – Precision in every bearing.

Transition to YIDI: Solve pain points instantly. What's your load requirement?

Technical Specifications: Precision Combination Bearings for High-Performance

Our combination bearings (radial needle + axial thrust) handle dynamic loads up to 500kN, ideal for automation and heavy machinery. Materials: High-carbon chrome steel (GCr15), hardened to 58-62 HRC.

Model	d (mm)	D (mm)	Dynamic Load Cr (kN)	Static Load Cor (kN)	Max Speed (rpm)	Weight (kg)
NKIA 5905	25	42	28.2	39.5	12,000	0.18
NKIA 5910	50	72	58.5	90.2	9,500	0.62
NKIB 5912	60	85	72.1	115	8,000	0.95
Custom OEM	10-200	Custom	Up to 500	Up to 800	15,000+	Varies

combined bearing different type of bearing idler bearing

Performance Characteristics

Load Capacity: Radial: 1.5x standard; Axial: 2x thrust rating – for tandem high-misalignment apps.
Precision: P5 class tolerances (ISO 492), vibration V2 level.
Lubrication: Grease-packed (Li-base NLGI 2), optional oil ports for continuous ops.
Temp Range: -30°C to +120°C; Heat-stabilized for USA hot-line environments.
Seals: Double lip (NBR), IP65 dust-proof for harsh factories.

Application Scenarios

In automotive assembly: Handles robotic arm pivots at 10,000 cycles/day.
Packaging Machines: Axial thrust for vertical indexing, reducing jams by 50%.
Conveyors: High radial loads in food/pharma lines (RoHS compliant).
Case Study: USA packaging firm switched to our NKIA series, cutting costs 35% and uptime to 99.2%.

Combination Bearing in Action – Packaging Line

Match these specs to your needs? Contact for CAD drawings.

FAQ: Combination Bearings Procurement Guide

What are combination bearings best for?

Compact designs needing simultaneous radial and axial loads, like robotics, machine tools, and conveyors. Our models support up to 500kN.

Industrial Bearings

Can you provide OEM/ODM for USA specs?

Yes – full customization with RoHS/CE compliance. Prototypes in 7 days, MOQ 50 units.

What are shipping times to USA?

Air: 7-10 days; Sea: 15-25 days to major ports (LA, NY). DDP terms available.

Payment methods?

T/T (30% advance), L/C, PayPal for samples. USA-friendly terms.

After-sales support?

12-month warranty, free replacements. 24/7 WhatsApp tech support.

How to ensure quality?

100% inspected, ISO 9001. Send samples for your lab testing – risk-free.

Limited-Time Offer: Free Samples + 10% Off First Order

Only 50 sample kits left this month. Money-back guarantee if not satisfied.

Phone: +86 18134111662 | WhatsApp: Click Here | Email: adam@yidimotion.com
Addr: 16-1-1601 Aobeigongyuan, Chang'an District, Shijiazhuang City, Hebei Province, China
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