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MR Series
Home Deep Groove Ball Bearings MR Series

MR106-ZZ Shielded Miniature Ball Bearing For High-Speed Models | Low Friction | 6×10×3 mm

MR106-ZZ Shielded Miniature Ball Bearing For High-Speed Models | Low Friction | 6×10×3 mm

The MR106-ZZ is a precision-engineered single-row miniature ball bearing designed for high-velocity applications where low rotational torque is a priority. Featuring dual-side metal shields (ZZ), this ultra-slim 6×10×3 mm component offers an effective defense against dust and dry contaminants without the friction drag associated with rubber contact seals. The non-contact metal shields ensure that the factory-applied grease remains contained within the raceways, allowing for exceptionally smooth, high-RPM performance in clean or semi-protected mechanical environments.

MR106-ZZ Deep Groove Ball Bearing 6×10×3 mm | MR Series – High-Speed Precision Shielding

Developed to provide seamless motion in space-constrained designs, this shielded micro-bearing excels in high-frequency rotations where heat dissipation and minimal resistance are critical. The MR106-ZZ is the preferred choice for hardware ranging from cooling fans to precision medical tools. By utilizing rigid steel shields, it maintains the structural integrity of the internal rolling elements while facilitating a low-vibration experience, ensuring consistent accuracy even during continuous high-speed operation.

MR106-ZZ Shielded Miniature Ball Bearing For High-Speed Models | High Speed & Low Friction | 6×10×3 mm

Comprehensive Applications

Ideally suited for mechanical engineers and product developers focused on high-efficiency motion in micro-systems:

RC Hobby & High-Speed Models
  • High-End RC Helicopter Tail Rotors
  • Precision Racing Drone Motors
  • Electric Speed Controller (ESC) Cooling Fans
  • Miniature Slot Car Axles
Electronics & Office Automation
  • Compact Computer Cooling Fans
  • Laser Printer Scanning Units
  • High-Resolution Encoders
  • Small Stepper Motors for 3D Printers
Precision Instruments & Tools
  • Miniature Dental Handpiece Components
  • Optical Equipment Rotating Mounts
  • Portable Handheld Power Tools
  • Watchmaking & Horology Repair Equipment
Domestic Smart Technology
  • Small Robot Vacuum Internal Sensors
  • Automatic Curtain Motor Assemblies
  • Smart Home Lock Actuator Gears
  • Electric Toothbrush Internal Oscillators

Key Performance Features

01. High-Grade GCr15 Chrome Steel

Forged from premium Chrome Steel (SAE 52100), the bearing undergoes rigorous tempering to achieve superior surface finish and wear resistance. This material choice ensures the MR106 maintains its P5 precision class accuracy under varying radial loads and high-speed cycles.

02. Dual Pressed Steel Shields (ZZ)

The MR106-ZZ is equipped with two metal shields that prevent the ingress of larger particles while retaining internal lubrication. Because the shields do not touch the inner ring, they eliminate contact friction, making this bearing ideal for reaching higher speeds than sealed versions.

03. Ultra-Slim Profile for Micro-Engineering

With a 6mm bore and a width of only 3mm, this bearing provides an excellent strength-to-size ratio. Weighing approximately 1.0 gram, it supports the trend toward lighter, more compact portable electronics without compromising on shaft rotational stability.

Technical Specifications

Bearing Type Single Row Deep Groove Ball Bearing
ISO Dimension Series MR Series (Miniature Metric)
Basic Designation MR106
Suffix ZZ (Double Metal Shields)
Bore Diameter (d) 6 mm
Outer Diameter (D) 10 mm
Width (B) 3 mm
Material (Races & Balls) Chrome Steel (GCr15 / SAE 52100)
Precision Class P5 / ABEC-5 Available
Shield Material Pressed Steel
Dynamic Load Rating (Cʳ) 0.495 kN (495 N)
Static Load Rating (C₀ʳ) 0.218 kN (218 N)
Limiting Speed (Grease) 56,000 r/min
Limiting Speed (Oil) 67,000 r/min
Weight (approx.) 0.001 kg (1.0 gram)

Interchange Part Numbers

Global manufacturer cross-references for procurement:

  • SKF: MR106-Z
  • NMB: L-1060ZZ
  • NSK: MR106ZZ
  • NTN: MR106ZZ
  • FAG: MR106-2ZR
  • KOYO: MR106ZZ

Design & Configuration

Equipped with dual metal shields, the MR106-ZZ is the top recommendation for applications requiring low starting torque and maintenance-free longevity. While not waterproof, its design optimizes high-speed efficiency and thermal stability. With over 15 years of manufacturing expertise, Welink Bearing offers professional technical support, including custom internal clearances (like C2 or C3) and specialized lubricant selection to match your specific torque requirements.

"Leverage the MR106-ZZ shielded micro bearing to achieve superior rotational speed and precision in your next compact mechanical innovation."

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