FRW4
FRW Series Extended Inner Ring Flanged Miniature Bearings
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Basic Information
Main Dimensions
Inner Ring Dimensions
Outer Ring Dimensions
Ball & Washer Dimensions
Performance
Materials
Environment & Compliance
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FRW4 Bearing Product Overview & Core Advantages
The FRW4 is a high-precision single row ball bearing designed for demanding applications requiring reliable radial load capacity and stable operation. Manufactured to ABEC1 precision standards with inch dimensions, this bearing features an extended inner ring for simplified mounting and axial location. Its optimized chrome steel construction and stainless steel cage provide excellent durability and consistent performance across a wide temperature range from -86 to 230 °F, making it suitable for precision instruments and compact mechanical systems.
FRW4 Bearing Model Code Explained, Specifications & Naming Convention
| Suffix/Feature | Technical Meaning |
|---|---|
| Open | No seals or shields, allowing for high-speed operation and easy relubrication |
| Extended Inner Ring | Provides mounting convenience and precise axial positioning |
| MC3 Clearance | Standard radial internal clearance (0.00008" to 0.0005") for general applications |
| ABEC1 | Precision tolerance class ensuring consistent running accuracy |
FRW4 Bearing Structural Features & Performance Benefits
High-Precision Design: The single row construction with 8 precision balls (0.0937" diameter) ensures smooth operation and minimal vibration. The stainless steel cage provides excellent guidance and stability at high rotational speeds.
Robust Load Capacity: With a dynamic load rating of 283 lbf and static load rating of 112 lbf, this bearing delivers reliable performance under significant radial loads while maintaining operational integrity.
Optimized Speed Performance: The open design and precision manufacturing enable a limiting speed of 110,000 rpm, making it suitable for high-speed applications requiring minimal friction and heat generation.
Wide Temperature Compatibility: Constructed from chrome steel rings and balls, the bearing maintains dimensional stability and performance across an extensive operating range from -86 to 230 °F.
FRW4 Bearing Typical Application Areas
- Precision instruments and measuring devices
- Small motors and miniature mechanical systems
- Medical equipment components and dental handpieces
- Office automation equipment and precision mechanisms
- Robotic components and miniature automation systems
- Aerospace instrumentation and control systems
