R8ZZST
R Series & EE Series Single Row Deep Groove Ball Bearings
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Basic Information
Main Dimensions
Performance
Materials
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R8ZZST Bearing Product Overview & Core Advantages
The R8ZZST is a single row deep groove ball bearing designed for reliable performance in demanding applications. This inch-series bearing features a shielded construction that provides effective contamination protection while maintaining high-speed capability. With its ABEC 1 precision class and optimized internal geometry, the R8ZZST delivers smooth operation and consistent performance across a wide temperature range from -30°C to 120°C. The bearing's robust radial load capacity of 1149 lbf dynamic rating makes it suitable for applications requiring dependable power transmission and rotational accuracy.
Model Code Detailed Breakdown
| Code Segment | Technical Meaning | Performance Benefit |
| R8 | Bearing series designation with 0.5" bore diameter | Standard inch dimension compatibility |
| ZZ | Double shielded construction on both sides | Enhanced contamination protection and lubricant retention |
| ST | Standard tolerance and clearance (ABEC 1/CN) | Cost-effective solution for general applications |
R8ZZST Bearing Structural Features & Performance Benefits
Optimized Internal Geometry: The deep groove raceway design enables efficient handling of radial loads while accommodating moderate axial loads in both directions, providing versatile load-carrying capability.
Shielded Protection System: The dual steel shields (ZZ designation) create an effective barrier against contaminants while allowing for high-speed operation up to 25,500 rpm. This construction minimizes friction and heat generation compared to contact seals.
Premium Material Construction: Manufactured from chrome steel for both rings and balls, the bearing ensures excellent wear resistance and durability. The steel cage provides reliable ball guidance and structural integrity under demanding conditions.
Precision Engineering: With ABEC 1 precision and standard CN clearance, the bearing delivers consistent performance with minimal runout, making it suitable for applications requiring reliable rotational accuracy.
R8ZZST Bearing Typical Application Areas
Electric Motors & Generators: Ideal for small to medium-sized motors requiring reliable high-speed operation and contamination protection.
Power Tools & Handheld Equipment: Suitable for drills, grinders, and other portable tools where compact bearing dimensions and shield protection are essential.
Industrial Fans & Blowers: Excellent for ventilation equipment operating at moderate to high speeds with continuous operation requirements.
Office Automation Equipment: Used in printers, scanners, and copiers where quiet operation and reliable performance are critical.
Material Handling Systems: Appropriate for conveyor rollers and pulley systems requiring dependable radial load capacity in contaminated environments.
