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68 Series
Home Deep Groove Ball Bearings 68 Series

682-2RS Sealed Miniature Ball Bearing for Precision Micro-Assemblies | 2×5×2.3 mm

682-2RS Sealed Miniature Ball Bearing for Precision Micro-Assemblies | 2×5×2.3 mm

The 682-2RS is a high-performance, double rubber-sealed miniature deep groove ball bearing specifically designed for applications where rotational accuracy is paramount in a tiny footprint. Featuring a 2 mm bore and a 5 mm outer diameter, this precision component is engineered to deliver reliable support in micro-mechanical systems. Equipped with dual contact rubber seals (2RS), it offers superior protection against environmental contaminants while ensuring the internal lubricant remains sealed for the duration of the bearing's service life.

682-2RS Deep Groove Ball Bearing 2×5×2.3 mm | 6800 Series Miniature | Double Rubber Sealed

Developed with high-grade honed raceways, this sealed micro-bearing provides exceptionally smooth rotation and low vibration at speeds up to 63,000 r/min with grease lubrication. The 682-2RS is designed to handle radial loads and moderate axial loads in both directions. It serves as a vital component for engineers seeking a durable, maintenance-free solution for high-precision equipment where housing space is extremely limited but mechanical stability cannot be compromised.

682-2RS Sealed Miniature Ball Bearing for Precision Micro-Assemblies | 2×5×2.3 mm

Comprehensive Applications

Optimized for miniaturized rotating hardware and complex assemblies requiring high-efficiency sealing and compact dimensions:

Scientific & Medical Instrumentation
  • Portable Diagnostic Devices
  • Micro-Centrifuge Internal Rotors
  • Laboratory Fluid Mixing Units
  • Precision Ophthalmic Instruments
Micro-Motion & Robotic Systems
  • Miniature Servo Motor Shafts
  • Robotic Finger Joint Actuators
  • Micro-Linear Slide Components
  • Automated Precision Gripper Gears
High-End Consumer Tech & Gadgets
  • Smart Home Camera Pivot Points
  • Professional Gimbal Stabilizers
  • Computer Peripheral Roller Units
  • Precision Remote Control (RC) Vehicles
Miniaturized Drive Mechanisms
  • High-Speed Cooling Micro-Fans
  • Small Drone Propeller Motors
  • Precision Gearbox Output Shafts
  • Miniature Encoder Disk Supports

Key Performance Features

01. Zero-Maintenance Sealing Technology

Fitted with two Nitrile Butadiene Rubber (NBR) contact seals, the 682-2RS is a "sealed-for-life" component. These precision-engineered seals provide a robust barrier against fine particulates and moisture ingress, effectively preventing grease leakage and ensuring consistent performance in challenging operating environments.

02. Ultra-Compact Radial Profile

Manufactured from premium-quality chrome steel (GCr15), this bearing features a refined 2.3 mm width. This slim-profile architecture allows for the radical downsizing of equipment housings, enabling designers to achieve higher power density in smaller mechanical footprints without sacrificing rotational precision.

03. Whisper-Quiet Dynamic Stability

The internal steel balls and raceways are finished to P5 precision grades and V-Class vibration standards. This meticulous manufacturing process results in an incredibly low noise floor and minimal heat generation, which is essential for noise-sensitive applications like medical laboratories and handheld electronic devices.

Technical Specifications

Bearing Type Single Row Deep Groove Ball Bearing
ISO Dimension Series 6800 Series – Miniature
Basic Designation 682
Suffix 2RS (Double Contact Rubber Seals)
Bore Diameter (d) 2 mm
Outer Diameter (D) 5 mm
Width (B) 2.3 mm
Material (Races & Balls) Chrome Steel (GCr15 / SAE 52100)
Precision Class Standard (P0) / P6 or P5 Available Upon Request
Cage Material Pressed Stainless Steel Crown Cage
Dynamic Load Rating (Cʳ) 167 N
Static Load Rating (C₀ʳ) 51 N
Limiting Speed (Grease) 63,000 r/min
Limiting Speed (Oil) 75,000 r/min
Weight (approx.) 0.17 g

Interchange Part Numbers

Direct equivalents from global manufacturers include:

  • SKF: 682-2RS1
  • NSK: 682DD
  • NTN: 682LLU
  • KOYO: 682-2RS
  • NMB: L-520W52EE / MR52-2RS

Design & Configuration

The 682-2RS is the standard choice for engineers requiring a reliable, protected bearing for micro-hardware. Its 2.3 mm width provides slightly more surface area than ultra-thin models, offering enhanced stability for shafts in small-scale motors and scanners.

For applications involving high-moisture exposure or sterile environments, stainless steel versions (S682-2RS) are also available. If the application requires maximum rotational speed with minimal starting torque in a clean environment, the metal-shielded (682-ZZ) variant should be considered.

"Where micro-precision meets industrial-grade durability, the 682-2RS delivers the smooth, silent, and reliable performance required for the next generation of miniaturized technology."

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Request a Quote for Ball Bearings

Request a Quote for Ball Bearings
Please submit your inquiry below for detailed product and pricing information. We will get back to you within 24 hours.
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