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MR Series
Home Deep Groove Ball Bearings MR Series

MR62-2RS Miniature Deep Groove Ball Bearing For Compact Drones | Dual Rubber Sealed | 2×6×2.5 mm

MR62-2RS Miniature Deep Groove Ball Bearing For Compact Drones | Dual Rubber Sealed | 2×6×2.5 mm

The MR62-2RS is a high-precision, single-row miniature ball bearing engineered for applications where environmental protection is as critical as spatial efficiency. Equipped with dual synthetic rubber contact seals (2RS), this 2x6x2.5 mm component provides a superior barrier against moisture, dust, and fine contaminants compared to shielded alternatives. Its compact architecture is optimized for micro-actuators, handheld medical devices, and outdoor robotics, ensuring that the internal raceways remain protected and the factory-filled lubricant is retained even in challenging operating conditions.

MR62-2RS Deep Groove Ball Bearing 2x6x2.5 mm | MR Series – Sealed & High Protection

Specifically designed to balance high-speed performance with rugged durability, this sealed micro-bearing excels in environments where exposure to particulates is a factor. The MR62-2RS utilizes reinforced rubber seals that maintain a light-contact interface with the inner ring, effectively sealing out debris while maintaining a impressive rotational threshold of 63,000 r/min under grease lubrication. It serves as a resilient rotary solution for precision micro-mechanics, delivering quiet, low-vibration motion and extended service life.

MR62-2RS Miniature Deep Groove Ball Bearing For Compact Drones | Dual Rubber Sealed | 2×6×2.5 mm

Comprehensive Applications

Tailored for high-precision, micro-clearance environments utilized by engineers requiring robust sealing and ultra-compact components:

Outdoor Robotics & Compact Drones
  • Miniature Waterproof Servo Motors
  • Micro-Robot Articulation and Joints
  • Small-Scale Agricultural Monitoring Drones
  • Ruggedized Weather Sensing Equipment
Portable Medical & Diagnostic Devices
  • Handheld Surgical Power Tools
  • Portable Oxygen Concentrator Motors
  • Miniature Fluid Dosing Pumps
  • Diagnostic Imaging Rotary Tables
RC Models & Miniature Vehicles
  • Off-Road RC Micro-Crawler Axles
  • High-Performance RC Boat Drive Shafts
  • Miniature Electric Motor Rotors
  • Precision Steering Linkages
Small Household & Office Automation
  • High-End Electric Toothbrush Mechanisms
  • Compact Printer Paper Feed Rollers
  • Miniature Cooling Fans for Laptops
  • Smart Lock Rotating Assemblies

Key Performance Features

01. Dual Contact Rubber Sealing (2RS)

The MR62-2RS features high-grade synthetic rubber seals on both sides. This contact-sealing technology provides the highest level of protection against ingress from liquids and fine dust, making it the ideal choice for devices used in non-sterile or outdoor environments.

02. Precision GCr15 Chrome Steel Build

Utilizing premium-grade GCr15 Chrome Steel for both the rings and the rolling elements, this bearing undergoes specialized hardening processes. The result is a high-hardness surface that resists wear and fatigue, ensuring consistent P5/P6 precision grades for sensitive engineering tasks.

03. Micro 2mm Bore for Extreme Scaling

With a bore diameter of only 2mm, the MR62-2RS allows for the extreme miniaturization of shafts and internal components. Its 2.5mm width provides a stable footprint while minimizing the total weight to approximately 0.25 grams, perfect for battery-reliant, weight-sensitive portable electronics.

Technical Specifications

Bearing Type Single Row Deep Groove Ball Bearing
ISO Dimension Series MR Series (Miniature Metric)
Basic Designation MR62
Suffix 2RS (Dual Rubber Contact Seals)
Bore Diameter (d) 2 mm
Outer Diameter (D) 6 mm
Width (B) 2.5 mm
Material (Races & Balls) Chrome Steel (GCr15 / SAE 52100)
Precision Class Standard / P5 Grade Available
Seal Material Synthetic Rubber (NBR)
Dynamic Load Rating (Cʳ) 0.330 kN (330 N)
Static Load Rating (C₀ʳ) 0.098 kN (98 N)
Limiting Speed (Grease) 63,000 r/min
Limiting Speed (Oil) 75,000 r/min (Seals removed)
Weight (approx.) 0.00025 kg (0.25 grams)

Interchange Part Numbers

Common manufacturer equivalents utilized by technical buyers include:

  • SKF: MR62-2RS1
  • NMB: L-620LL
  • NSK: MR62 DDU
  • NTN: MR62 LLU
  • FAG: MR62-2RSR
  • KOYO: MR62-2RS

Design & Configuration

Equipped with dual rubber seals, the MR62-2RS is the definitive choice for applications requiring maintenance-free operation and high resistance to external contaminants. While the contact seals provide superior protection, they are designed to maintain high efficiency in high-RPM micro-motors. With over 15 years of technical manufacturing experience, Welink Bearing provides custom lubrication and clearance options (such as C3) to meet the specific torque and temperature demands of your industrial design.

"Integrate the MR62-2RS sealed miniature bearing to achieve maximum environmental protection, superior lubricant retention, and consistent precision in your most compact mechanical designs."

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