602x
600 Series Miniature Bearings
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Basic Information
Main Dimensions
Inner Ring Dimensions
Ball & Washer Dimensions
Performance
Materials
Environment & Compliance
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602x Bearing Product Overview & Core Advantages
The 602x series metric ball bearing is a high-precision single row deep groove ball bearing designed for compact applications requiring reliable performance. This open-type bearing excels in handling radial loads with its optimized internal geometry, making it ideal for high-speed operations. Manufactured with chrome steel rings and balls combined with a stainless steel cage, it delivers exceptional durability and corrosion resistance. Its miniature bearing dimensions (2.5mm bore, 8mm OD) and lightweight construction (0.61g) make it perfect for space-constrained precision mechanisms.
602x Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Performance Implication |
|---|---|---|
| 60 | Deep Groove Ball Bearing Series | Standard radial bearing design |
| 2 | Size Series Code | Ultra-miniature dimension series |
| Open | No Seals/Shields | Maximum speed capability, requires external lubrication |
| ABEC1 | Tolerance Class | Standard precision for general applications |
| MC3 | Radial Internal Clearance | Greater than normal clearance for thermal expansion management |
602x Bearing Structural Features & Performance Benefits
Deep Groove Geometry: The continuous raceway design enables efficient radial load distribution and accommodates moderate axial loads in both directions, providing versatile loading capabilities.
High-Speed Capability: The stainless steel cage and open construction allow for superior limiting speeds up to 60,000 rpm, making it suitable for high-rotation applications.
Precision Engineering: With ABEC1 tolerance class and tight dimensional controls (bore tolerance: -0.008mm to 0), this bearing ensures smooth operation and minimal vibration in precision assemblies.
Material Excellence: Chrome steel components provide high hardness and wear resistance, while the stainless steel cage offers excellent corrosion resistance and cage stability.
Thermal Management: The MC3 clearance (0.002mm to 0.013mm) accommodates thermal expansion during high-speed operation, preventing binding and ensuring consistent performance.
602x Bearing Typical Application Areas
- Precision Instruments: Optical encoders, measuring devices, laboratory equipment
- Small Motors: Micro DC motors, stepper motors, drone motors
- Office Automation: Printer rollers, scanner mechanisms, copier components
- Medical Devices: Dental handpieces, surgical tools, diagnostic equipment
- Consumer Electronics: Small fans, hard disk drives, miniature robotics
- Industrial Automation: Guidance rollers, positioning mechanisms, sensor mounts
