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MF Series

Home Deep Groove Ball Bearings MF Series

MF63-ZZ Miniature Flanged Ball Bearing For Micro Motors | Dual Shielded Precision | 3×6×2.5mm

Compact 3mm bore flanged ball bearing MF63 ZZ demonstrating sealed construction for maintenance-free operation

MF63-ZZ miniature flanged ball bearing highlighting dual metal shields for advanced dust resistance and grease retention

High precision MF63 ZZ replacement bearing cross-referenced with LF-630ZZ and WMF63ZZ for micro motors and RC models

Ultra high-speed 60000 RPM flanged bearing MF63-ZZ manufactured from GCr15 chrome steel for medical dental handpieces

Industrial grade MF63-ZZ micro bearing with P5 tolerance optimized for low vibration in smart home robotics

Double shielded MF63ZZ flanged bearing designed for frictionless rotation in drone gimbals and precision gearboxes

Welink Bearing MF63-ZZ chrome steel miniature component featuring C3 internal clearance for thermal expansion handling

MF63-ZZ Miniature Flanged Ball Bearing For Micro Motors | Dual Shielded Precision | 3×6×2.5mm

Name: MF63-ZZ Miniature Flanged Ball Bearing For Micro Motors | Dual Shielded Precision | 3×6×2.5mm
Availability: InStock

The MF63-ZZ is an ultra-compact, metric flanged deep groove ball bearing engineered for applications where space constraints are severe and precise axial positioning is mandatory. With a micro 3mm bore and a 6mm outer diameter, this bearing incorporates a solid outer ring flange that acts as a built-in stopper. This architectural advantage eliminates the need to machine intricate housing shoulders, simplifying the integration process. Outfitted with dual non-contact pressed steel shields (ZZ), the MF63-ZZ creates a secure internal cavity that locks in premium factory lubrication while aggressively repelling microscopic dust and particulate contaminants.

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Comprehensive Applications

Tailored for designers and electromechanical engineers who demand uncompromising accuracy in sub-miniature assemblies:

Precision Robotics & Drones

Micro-UAV Gimbal Stabilizers
Miniature Robotic Articulations
Optical Encoder Mechanisms
Haptic Feedback Devices

Medical & Laboratory Devices

High-RPM Dental Handpieces
Compact Syringe Pumps
Automated Liquid Handling Systems
Handheld Diagnostic Tools

Micro-Motors & RC Applications

High-Speed Brushless Micro Motors
Remote Control (RC) Vehicle Gearboxes
Miniature Servo Actuators
Coreless DC Motors

Key Performance Features

01. ZZ Dual Shield Contamination Control

Fitted with twin pressed steel shields, the internal rolling elements are shielded from environmental hazards. This lifetime-lubricated design requires zero maintenance, ensuring that the lithium-based grease remains uncontaminated and fully effective throughout the bearing's operational life, even in dusty manufacturing or outdoor environments.

02. Space-Saving Flanged Architecture

The integrated extended lip on the outer ring allows the bearing to be securely seated flush against a housing face. This not only prevents axial migration under thrust loads but also dramatically reduces the physical footprint required for the surrounding assembly, making it ideal for thin-walled or miniaturized equipment.

03. High-Fidelity GCr15 Chrome Steel

Forged from industrial-grade GCr15 Chrome Steel (SAE 52100), the raceways and balls possess exceptional surface hardness and resistance to rolling contact fatigue. Precision grinding processes ensure the bearing meets rigorous ISO 492 standards, delivering smooth, vibration-free performance over millions of cycles.

Technical Specifications

Bearing Type	Single Row Deep Groove Ball Bearing
ISO Dimension Series	Metric Miniature Flanged
Basic Designation	MF63
Suffix	ZZ (Double Metal Shields)
Bore Diameter (d)	3 mm
Outer Diameter (D)	6 mm
Width (B)	2.5 mm
Flange OD (D1)	7.2 mm
Flange Width (C1)	0.6 mm
Material	GCr15 Chrome Steel (SAE 52100)
Dynamic Load Rating (Cʳ)	Approx. 208 N
Static Load Rating (C₀ʳ)	Approx. 74 N
Limiting Speed (Grease)	60,000 RPM
Limiting Speed (Oil)	71,000 RPM
Weight (approx.)	0.33 grams

Interchange Part Numbers

Cross-reference equivalent part numbers for simplified sourcing and technical integration:

SKF: MF 63-2Z
NMB: LF-630ZZ
NSK: MF63ZZ
NTN: FLWA673ZZ
FAG: MF 63-2Z
KOYO: WMF673ZZ

Design & Configuration

Backed by 15 years of deep industry expertise in B2B manufacturing, Welink Bearing delivers high-precision rotational components built to stabilize and elevate your supply chain. The MF63-ZZ perfectly represents our capability to manufacture micro-scale solutions that perform under macro-level demands. We are fully equipped to support bulk OEM requirements, offering customizable variables such as low-friction instrument oil for ultra-high-speed needs, specialized anti-rust coatings, and precise internal clearance matching (from standard CN to vibration-reducing CM grades) to align flawlessly with your engineering parameters.

"Optimize your micro-assemblies with the MF63-ZZ flanged bearing—delivering uncompromising stability in the tightest spaces."

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LF-630ZZ Equivalent

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