682zz
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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682zz Bearing Product Overview & Core Advantages
The 682zz is a miniature shielded ball bearing designed for precision applications requiring compact dimensions and reliable performance. As a single row deep groove ball bearing, it excels at handling radial loads while also accommodating moderate axial loads in both directions. Its shielded design offers effective contamination protection, making it suitable for high-speed operation and applications where space is at a premium. Manufactured to ABEC1 precision tolerances, this bearing delivers consistent performance and high reliability in demanding miniature mechanical systems.
682zz Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 68 | Series designation indicating miniature bearing dimensions |
| 2 | Bore diameter code (2mm) |
| zz | Double metal shields on both sides for superior protection |
682zz Bearing Structural Features & Performance Benefits
Compact Design & High Precision: With an ultra-compact bearing size of 2mm bore × 5mm OD × 2.3mm width and ABEC1 tolerance class, this bearing ensures precise rotational accuracy in space-constrained applications.
Effective Contamination Protection: The double stainless steel shields (zz) provide excellent protection against dust and particulate contamination while maintaining low friction operation, contributing to the bearing's limiting speed of 85,000 rpm.
Optimized Load Capacity: Featuring six precision chrome steel balls and a stainless steel cage, the bearing delivers a dynamic load rating of 32 lbf and static load rating of 9 lbf, providing reliable performance under radial loading conditions.
Controlled Internal Clearance: With MC3 radial clearance (0.002mm to 0.013mm), the bearing offers optimal performance characteristics for high-speed applications while minimizing noise and vibration.
682zz Bearing Typical Application Areas
- Small DC Motors & Stepper Motors: Ideal for spindle support in miniature motors requiring high-speed operation
- Precision Instruments & Optical Devices: Suitable for rotary mechanisms in laboratory equipment and measuring instruments
- Office Automation Equipment: Used in printers, scanners, and copiers for precise paper handling mechanisms
- Medical Devices: Applied in dental handpieces, small pumps, and diagnostic equipment
- Consumer Electronics: Found in cooling fans, small drives, and miniature robotic applications
- RC Models & Hobby Applications: Perfect for high-speed miniature gearboxes and drive systems
