FRW166
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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FRW166 Bearing Product Overview & Core Advantages
The FRW166 is a single row deep groove ball bearing designed for precision radial load applications. Manufactured to ABEC1 precision class, this bearing offers reliable performance in compact spaces with its 0.1875" bore diameter and 0.375" outside diameter. Featuring an extended inner ring for easier mounting and secure positioning, it delivers excellent rotational accuracy and smooth operation. The bearing's chrome steel construction ensures durability while maintaining cost-effectiveness for general industrial applications.
FRW166 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Performance Implication |
|---|---|---|
| FRW166 | Basic bearing designation | Standard inch series deep groove ball bearing |
| Open Construction | No seals or shields | Allows for custom lubrication and higher speed capability |
| Extended Inner Ring | Inner ring protrudes beyond bearing width | Simplifies mounting and provides better axial location |
FRW166 Bearing Structural Features & Performance Benefits
Optimized Load Capacity: With a radial dynamic load rating of 136 lbf and static load rating of 49 lbf, this bearing handles substantial radial loads despite its compact bearing dimensions. The deep groove raceway design ensures stable operation under various load conditions.
Precision Engineering: Manufactured to ABEC1 tolerance class with controlled radial internal clearance (MC3 grade: 0.00008" to 0.0005"), this bearing delivers consistent performance and reduced vibration. The stainless steel cage maintains ball spacing and alignment for smooth rotation.
High-Speed Capability: The open design and 8 precision balls measuring 0.0625" in diameter enable operation at limiting speeds up to 50,000 rpm. The optimized internal geometry minimizes friction and heat generation.
Material Excellence: Constructed from chrome steel rings and balls, the bearing offers excellent wear resistance and fatigue life. The extended inner ring provides additional mounting flexibility while maintaining structural integrity.
FRW166 Bearing Typical Application Areas
- Small electric motors and miniature gearboxes
- Precision instruments and laboratory equipment
- Office automation devices including printers and scanners
- Medical devices requiring compact, reliable bearing solutions
- Robotics and automation components where space is constrained
- Textile machinery spindles and guides
- Consumer electronics with rotating components
