699zz
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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699zz Bearing Product Overview & Core Advantages
The 699zz is a metric single row deep groove ball bearing designed for high-performance applications requiring reliable radial load capacity and smooth operation. Featuring shielded construction and manufactured to ABEC1 precision tolerances, this bearing delivers consistent performance in compact spaces. Its optimized design provides excellent rotational characteristics, making it suitable for applications demanding high limiting speeds up to 34,000 rpm while maintaining dimensional stability and long service life.
Model Code Detailed Breakdown
| Code Segment | Technical Meaning | Performance Benefit |
|---|---|---|
| 69 | Extra small bore diameter series | Compact design for space-constrained applications |
| 9 | 9mm bore diameter | Standard shaft compatibility |
| zz | Double metal shields (both sides) | Effective contaminant protection, extended service life |
699zz Bearing Structural Features & Performance Benefits
Deep Groove Raceway Design: The optimized raceway geometry enables the bearing to handle significant radial loads while accommodating moderate axial loads in both directions, providing versatile load-carrying capability.
Stainless Steel Shield Protection: Double 300 series stainless steel shields effectively retain lubricant and exclude contaminants, enhancing bearing reliability in demanding environments without significantly increasing rotational torque.
Precision Manufacturing: Manufactured to ABEC1 tolerance class with controlled radial internal clearance (MC3 group: 0.002mm to 0.013mm), ensuring consistent performance, low vibration, and smooth operation across the specified temperature range (-30° to 110°C).
High-Speed Capability: The stainless steel cage precisely positions eight chrome steel balls (3.175mm diameter), enabling stable operation at limiting speeds up to 34,000 rpm while maintaining dimensional integrity.
699zz Bearing Typical Application Areas
- Small Precision Motors: Ideal for miniature DC motors, stepper motors, and spindle motors requiring high-speed operation and reliable performance
- Office Automation Equipment: Critical component in printers, scanners, copiers, and fax machines where compact size and quiet operation are essential
- Medical Devices: Suitable for dental handpieces, laboratory equipment, and diagnostic instruments demanding precision and reliability
- Industrial Tools: Used in small power tools, precision instruments, and measurement devices requiring smooth rotational characteristics
- Robotics & Automation: Applied in small robotic joints, positioning systems, and precision mechanisms where space optimization is critical
