Leave A Message
If you are interested in our products and want to know more details,please leave a message here,we will reply you as soon as we can.
Submit
MR Series
Home Deep Groove Ball Bearings MR Series

MR82-2RS Miniature Deep Groove Ball Bearing For Precision Instruments | Double Sealed | 2.5×8×2.5 mm

MR82-2RS Miniature Deep Groove Ball Bearing For Precision Instruments | Double Sealed | 2.5×8×2.5 mm

Engineered for applications demanding strict contamination control within tight spatial limits, the MR82-2RS is a premium single-row miniature ball bearing that balances high-speed rotation with superior sealing capabilities. Outfitted with dual contact rubber seals (2RS), this 2.5x8x2.5 mm component effectively blocks moisture, dust, and particulate matter while securely locking in high-quality lubricant for zero-maintenance operation. Weighing approximately half a gram, it is the ideal rotary solution for office electronics, personal care devices, and precision instruments where both miniaturization and long-term durability are non-negotiable.

MR82-2RS Deep Groove Ball Bearing 2.5x8x2.5 mm | MR Metric Series – Ultra-Compact & Fully Sealed

This highly specialized micro-bearing ensures reliable rotational stability even in environments susceptible to debris exposure. Unlike metal-shielded alternatives, the MR82-2RS utilizes Nitrile Butadiene Rubber (NBR) contact seals to create a definitive barrier against external elements. Capable of achieving high operational speeds up to 60,000 r/min (with grease lubrication), it serves as a vital mechanical asset for enclosed systems that require absolute internal protection without sacrificing dynamic performance or smooth, quiet operation.

MR82-2RS Miniature Deep Groove Ball Bearing For Precision Instruments | Double Sealed | 2.5×8×2.5 mm

Comprehensive Applications

Engineered for ultra-compact, high-speed mechanisms requiring robust contamination defense and minimal maintenance:

Consumer & Office Electronics
  • Precision Office Scanners and Printers
  • High-RPM Electric Shavers and Grooming Devices
  • Wearable Technology Mechanisms
  • Automated Camera Lenses and Gimbals
Micro Motors & RC Equipment
  • Miniature DC Motors and Steppers
  • High-Performance RC Car Gearboxes and Wheels
  • Micro Drone Rotors and Servos
  • Small-Scale Actuator Assemblies
Precision Instrumentation
  • Medical Diagnostic Pumps
  • Miniature Flow Meters
  • Automated Laboratory Equipment
  • Fine Optical Measuring Devices

Key Performance Features

01. Superior Rubber Sealing Technology (2RS)

Equipped with premium NBR contact seals on both sides, the MR82-2RS provides excellent defense against dust, dirt, and moisture. This tight sealing architecture ensures the factory-filled lubricant remains intact, significantly extending the bearing's service life in moderately contaminated environments while maintaining quiet, low-vibration functionality.

02. Premium GCr15 Chrome Steel Construction

Forged from high-carbon chromium bearing steel, the inner rings, outer rings, and ball elements undergo rigorous heat treatment processes. This results in exceptional wear resistance, robust load-carrying capacity (up to 474 N dynamic load), and excellent fatigue strength tailored for demanding micro-engineering applications.

03. Ultra-Miniature Architecture

Featuring an extremely compact 2.5 mm bore and 8 mm outer diameter, this bearing empowers technical procurement teams and engineers to shrink mechanical footprints without compromising on sealing integrity. Weighing a mere 0.52 grams, it facilitates critical weight reduction for handheld electronics and battery-powered portable devices.

Technical Specifications

Bearing Type Single Row Deep Groove Ball Bearing
ISO Dimension Series MR Series (Metric Miniature)
Basic Designation MR82
Suffix -2RS (Double Rubber Seals)
Bore Diameter (d) 2.5 mm
Outer Diameter (D) 8 mm
Width (B) 2.5 mm
Material (Races & Balls) Chrome Steel (GCr15 / SAE 52100)
Precision Class Standard / P5 Grade Available
Seal Material NBR (Nitrile Butadiene Rubber)
Dynamic Load Rating (Cʳ) 0.474 kN (474 N)
Static Load Rating (C₀ʳ) 0.144 kN (144 N)
Limiting Speed (Grease) 60,000 r/min
Limiting Speed (Oil) 67,000 r/min
Weight (approx.) 0.00052 kg (0.52 grams)

Interchange Part Numbers

Common manufacturer equivalents utilized by technical buyers include:

  • SKF: MR82-2RS1
  • NSK: MR82DDU
  • FAG: MR82-2RSR
  • NTN: MR82LLU
  • KOYO: MR82-2RS
  • MRC: L-825DD

Design & Configuration

Protected by dual NBR seals, the MR82-2RS is the ultimate choice for high-speed micro-applications where contamination exclusion is paramount. Should your project demand lower friction torque (such as non-contact seals) or specific high-temperature lubrication profiles, this bearing can be customized to fit exact operational parameters. Drawing on over 15 years of manufacturing history, Welink Bearing's technical support team is readily available to guide engineers in finalizing the ideal bearing configuration for specialized B2B industrial and commercial demands.

"Integrate the MR82-2RS miniature sealed bearing to secure exceptional contamination protection, prolonged service life, and reliable high-speed performance in your most space-constrained assemblies."

Related Products

Industrial Grade MR106-ZZ Ball Bearing Equivalent to NMB L-1060ZZ and NSK MR106ZZ for Medical Devices
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.

Details
Premium GCr15 Chrome Steel MR106-2RS Bearing compatible with SKF and NSK equivalents, engineered for micro robotics and RC drone gimbals
MR106-2RS Sealed Miniature Ball Bearing | Advanced Contaminant Defense | 6×10×3 mm

The MR106-2RS is a highly resilient, single-row miniature deep groove ball bearing designed for precision applications where space is limited and environmental protection is paramount. Measuring just 6×10×3 mm, this micro-bearing is equipped with premium dual synthetic rubber contact seals (2RS). This sealing mechanism forms an aggressive barrier against fine dust, particulate matter, and liquid ingress. Unlike standard metal shields, the NBR rubber seals maintain a continuous, light-friction contact with the bearing's inner ring, locking the factory-applied lubricant inside and drastically reducing the need for maintenance in challenging or outdoor environments.

Details
MR106 Open Deep Groove Ball Bearing showing unsealed raceway design for direct lubrication and minimal starting torque
MR106 Open Miniature Deep Groove Ball Bearing | Ultra-Low Friction | 6×10×3 mm

The MR106 Open is a high-precision, unsealed miniature ball bearing engineered for internal applications that demand the absolute minimum in rotational resistance. Characterized by its "Open" configuration, this 6×10×3 mm component lacks metal shields or rubber seals, completely eliminating any potential contact drag. By exposing the internal raceways and rolling elements, it allows for unrestricted, ultra-smooth motion. This design is the optimal choice for enclosed mechanical systems operating in clean environments, or within dedicated oil baths where continuous external lubrication is applied.

Details
Ultra-compact 5x9x3 mm MR95-ZZ shielded deep groove ball bearing showing polished outer ring and steel shield
MR95-ZZ Miniature Shielded Ball Bearing | High-Speed Micro Rotation | 5×9×3 mm

The MR95-ZZ is an ultra-compact, single-row deep groove ball bearing engineered for applications that demand high-speed rotation and minimal friction within tightly constrained spaces. With microscopic dimensions of just 5×9×3 mm, this bearing is equipped with dual pressed steel shields (ZZ). Unlike rubber seals, these non-contact metal shields provide excellent protection against larger particulates and dust without generating drag. This frictionless shielding ensures the bearing can operate at exceptionally high RPMs while retaining its internal lubrication, making it an indispensable component for sensitive, high-velocity micro-mechanisms.

Details
Precision MR95 2RS Replacement Bearing compatible with NMB L-950DD and NSK MR95DDU for RC Cars and Fishing Reels
MR95-2RS Sealed Deep Groove Ball Bearing | Heavy-Duty Contaminant Defense | 5×9×3 mm

The MR95-2RS is a highly resilient, single-row micro ball bearing tailored for applications where space is extremely limited but environmental protection is non-negotiable. Equipped with twin synthetic rubber contact seals (2RS) on both sides, this compact 5×9×3 mm unit creates an impenetrable shield against water droplets, fine dust, and operational debris. The friction-optimized rubber lips make direct contact with the inner ring, effectively locking the factory-supplied lubricant inside while blocking external corrosive elements, thereby maximizing the lifecycle of the assembly in challenging outdoor or harsh industrial settings.

Details
MR149-ZZ Metric Ball Bearing showing 9mm Bore and Dual Metal Shields for Debris Protection
MR149-ZZ Metric Miniature Ball Bearing | High-Efficiency Motion Control | 9×14×4.5 mm

The MR149-ZZ is a high-performance metric series miniature bearing engineered for applications that demand a balance of compact design and robust load-carrying capacity. With a 9mm bore diameter, this bearing is slightly larger than micro-series models, providing enhanced stability and radial support for small-scale rotating shafts. The dual metallic shields (ZZ) ensure that the internal raceways remain protected from dust and debris while maintaining the low-friction characteristics essential for high-speed efficiency.

Details
Technical measurement of MR149 Bearing 9mm bore and 14mm OD for precision engineering verification.
MR149 Metric Series Miniature Ball Bearing | Slim-Section Precision | 9×14×3 mm

The MR149 is a high-performance, metric-series miniature deep groove ball bearing specifically engineered for applications requiring a large bore-to-outside-diameter ratio in a slim-section profile. With a 9mm inner diameter and a narrow 3mm width, this bearing offers a unique solution for rotating components that need to pass over larger shafts without increasing the overall housing volume. Whether configured as open or shielded, the MR149 provides exceptionally low starting torque and high-speed stability, making it a cornerstone for modern mechatronics and precision hardware.

Details
Precision MR105 ZZ Replacement Bearing compatible with NSK MR105ZZ and NMB L-1050ZZ for RC Cars and Fishing Reels
MR105-ZZ Miniature Precision Ball Bearing | 5×10×4 mm for RC Models & Instrumentation

Designed for micro-mechanical systems where space is at an absolute premium, the MR105-ZZ is a top-tier miniature deep groove ball bearing. Equipped with dual steel shields (ZZ), it excels at keeping dust and debris out while securely retaining its factory-filled lubricant. Because these pressed metal shields operate entirely without contacting the inner ring, the MR105-ZZ guarantees virtually zero rotational drag. This ultra-low starting torque makes it the definitive solution for high-speed 5mm shaft applications, including RC car drivetrains, precision fishing reels, and delicate measurement instruments.

Details

Leave A Message

Leave A Message
If you are interested in our products and want to know more details,please leave a message here,we will reply you as soon as we can.
Submit

Home

Products

whatsApp

contact