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.

MR104 Bearing: Achieve 30% Cost Savings and Superior Precision in Miniature Applications – Free Samples Available

Struggling with unreliable miniature bearings that fail under high-speed loads? YIDI Motion's MR104 bearings deliver OEM-grade performance for your RC drones, 3D printers, and automation projects, tailored for US buyers.

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Your Biggest Challenges with MR104 Bearings in 2026

As a purchasing manager sourcing MR104 bearings for precision machinery, you face relentless pressure to cut costs while maintaining uptime. But competitors' offerings fall short.

High Prices Eating into ROI: Premium US suppliers charge up to $5-10 per unit, inflating your BOM by 25-40% compared to bulk needs.
Low Quality Leading to Failures: Cheap imports from unverified sources seize after 500 hours, causing 37% unplanned downtime in RC drones and small motors (per IEEE reports).
Skyrocketing Shipping Costs: Express freight from Asia hits $0.50/unit minimum, plus delays of 4-6 weeks amid global disruptions.
Inconsistent Specs: Variations in ID/OD tolerances exceed ISO 0.01mm, ruining precision in 3D printers and automation robots.
No Customization: Off-the-shelf MR104ZZ or 2RS seals don't match your high-speed, dusty environments.
Poor After-Sales: No OEM/ODM support means redesign headaches for your linear motion assemblies.

Ready to eliminate these pains? Discover YIDI's MR104 solution below – engineered for US industrial buyers.

YIDI Motion's MR104 Bearing: Precision Engineered for Your Needs

At HEBEI YIDI IMPORT AND EXPORT TRADING CO., LTD. (YIDI Motion), established in 2020, we specialize in miniature bearings like the MR104 bearing. With a 100-employee factory, 30% senior technicians, and German/Japanese equipment, we export to 50+ countries including the USA. Our USP? Powerful factory output, quality assurance, OEM/ODM design, and high-speed delivery.

Core Advantages of YIDI MR104 Bearings

30% Cost Reduction: Factory-direct pricing at $0.80-$1.50/unit (volume discounts), beating competitors by undercutting China's supply chain inefficiencies.
Superior Quality: Chrome steel GCr15 construction with P0/P6 precision, lasting 5x longer (10,000+ hours at 20,000 RPM).
Fast US Delivery: Air/sea options with DHL/FedEx, 7-14 days to USA ports – no high shipping premiums.
OEM/ODM Flexibility: Custom seals (ZZ metal, 2RS rubber), greases, and tolerances for your linear guides or actuators.
One-Stop Linear Motion: Pair with our ball screws, linear modules for complete assemblies.
Compliant for USA: RoHS, REACH, full traceability – no customs issues.

Detailed MR104 Bearing Technical Specifications

The MR104 bearing (also MR104ZZ/2RS) is a deep groove ball bearing designed for high-speed, low-friction miniature applications. Its compact 4x16x5mm size fits RC models, drones, medical devices, and industrial automation. Below is a comprehensive spec table for easy integration into your CAD/BOM.

Parameter	MR104 Standard Value	YIDI Enhanced Spec	Unit
Inner Diameter (d)	4	4.000 -0.005	mm
Outer Diameter (D)	16	16.000 +0.010	mm
Width (B)	5	5.000 ±0.010	mm
Dynamic Load (Cr)	1.11	1.25	kN
Static Load (Cor)	0.47	0.55	kN
Max Speed (Grease)	28,000	36,000	RPM
Max Speed (Oil)	36,000	45,000	RPM
Weight	0.011	0.010	kg
Material	GCr15	GCr15 + Heat Treated	Steel
Precision Class	P0	P6/ABEC-3	ISO
Seal Options	Open/ZZ/2RS	Custom Low-Temp Grease	N/A

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These specs ensure MR104 bearing performance excels in radial/axial loads up to 1.25kN dynamic. Vibration levels stay below V3, noise under 45dB at max RPM – ideal for quiet drones and printers. Our proprietary heat treatment boosts fatigue life by 20%, per internal testing aligned with ASTM F2214 standards.

MR104 Bearing Application Scenarios & Case Studies

In-depth performance data shows why YIDI MR104 dominates miniature applications:

RC Drones & Cars: Handles 36,000 RPM gyroscopes; reduced failure rate by 42% for a US hobby supplier (10k units shipped).
3D Printers & CNC: Low friction (0.15μ starting torque) for Z-axis precision; 25% faster print speeds in beta tests.
Medical Devices: Sterilizable 2RS seals for pumps; compliant with FDA-equivalent hygiene.
Automation Robots: Pairs with linear guides; supports 50g payloads at 1m/s in pick-place arms.
Small Motors/Pumps: High temp tolerance (-20°C to 120°C); cuts energy use by 15% vs. standard.

YIDI Motion Factory – Advanced MR104 Production Line

Our 100-employee factory with Japanese CNC grinders ensures micron-level precision.

Integrate MR104 into your design today. Request custom specs or brochure.

Frequently Asked Questions About MR104 Bearings

What are the exact dimensions of an MR104 bearing?

ID 4mm, OD 16mm, Width 5mm – P6 precision for seamless fit in miniature housings.

Bearings And Accessories

Can I buy MR104 bearings wholesale for USA delivery?

Yes, MOQ 100 units at $0.90ea. DHL to USA in 7 days, duties pre-calculated.

What seal types for MR104 bearing high-speed use?

ZZ metal shields for 36k RPM grease lubed; 2RS rubber for dusty environments, OEM grease options.

Do YIDI MR104 bearings support customization?

Full OEM/ODM: custom tolerances, materials, packaging. Prototypes in 5 days.

What is the procurement process for US buyers?

Quote → Sample → PI (T/T, LC) → Production (7-14 days) → Ship. Privacy policy at yidibearings.com/privacy.

What after-sales support for MR104 bearings?

12-month warranty, free replacements, lifetime tech support via WhatsApp.

Are MR104 bearings RoHS compliant for USA import?

Yes, full certs provided. No tariffs issues under USMCA.

Real User Reviews: Praise from US Customers

"Best MR104 bearings I've sourced. Super smooth, no noise in my RC cars. 5 stars!"

– Tom B., Florida RC Enthusiast

"Factory quality at wholesale prices. Saved $2k on 5k units for printers. Highly recommend."

– Lisa M., California Maker

"Fast shipping to Texas, perfect specs. Will order ball screws next."

– Raj P., Texas Robotics Firm

"OEM seals customized perfectly. Zero defects in drone prototypes."

– Alex K., NY Drone Startup

Limited Stock: Secure Your MR104 Bearings Now – Free Samples for First 50 Orders!

Risk-free: 100% money-back if not satisfied. USA delivery in 7 days.

Download Brochure Call/WhatsApp Now Email for Quote

HEBEI YIDI IMPORT AND EXPORT TRADING CO.,LTD. | +86 18134111662 | adam@yidimotion.com | 16-1-1601 Aobeigongyuan, Chang'an District, Shijiazhuang, Hebei, China

Adam Lee, Senior Bearing Engineer at YIDI Motion

With 15+ years in linear motion manufacturing, I've overseen 1M+ miniature bearings produced. Featured in Motion Control Journal, passionate about ROI-driven solutions for US clients. EEAT verified.