FRW4zz
FRW Series Extended Inner Ring Flanged Miniature Bearings
Image may differ from product. See technical specification for details.
Basic Information
Main Dimensions
Inner Ring Dimensions
Outer Ring Dimensions
Ball & Washer Dimensions
Performance
Materials
Environment & Compliance
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FRW4zz Bearing Product Overview & Core Advantages
The FRW4zz is a single row ball bearing designed for high-performance applications requiring reliable radial load capacity. Manufactured to ABEC1 precision tolerances, this inch-series bearing features an extended inner ring for simplified mounting and axial location. Its shielded design provides effective contamination protection while maintaining low friction operation. The bearing delivers consistent performance across a wide temperature range from -86 to 230 °F, making it suitable for various industrial environments.
FRW4zz Bearing Model Code Explained, Specifications & Naming Convention
| Suffix | Technical Meaning |
|---|---|
| zz | Double shielded construction providing protection from contaminants on both sides |
| Extended Inner Ring | Facilitates easier installation and axial positioning in assemblies |
FRW4zz Bearing Structural Features & Performance Benefits
Precision Engineering: Built to ABEC1 tolerance standards with chrome steel rings and balls for consistent performance and durability. The stainless steel cage ensures proper ball spacing and guidance at operating speeds up to 110,000 rpm.
Load Capacity: Rated for 283 lbf dynamic and 112 lbf static radial loads, providing reliable performance in demanding applications. The optimized ball diameter (0.0937") and 8-ball configuration deliver balanced stress distribution.
Contamination Protection: 300 series stainless steel shields protect the bearing interior from particulate contamination while allowing for high-speed operation. The MC3 radial clearance (0.00008" to 0.0005") accommodates thermal expansion in various operating conditions.
Material Quality: All components manufactured from premium materials including chrome steel for rings and balls, and stainless steel for the cage and shields, ensuring corrosion resistance and long service life.
FRW4zz Bearing Typical Application Areas
- Precision instruments and measurement devices
- Small motors and miniature drive systems
- Medical equipment requiring reliable rotational components
- Office automation devices and precision mechanisms
- Robotic components and miniature automation systems
- Aerospace instrumentation and control systems
