FR188zz
FR Series 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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FR188zz Bearing Product Overview & Core Advantages
The FR188zz is a single row deep groove ball bearing designed for high-performance applications requiring precision and reliability. Engineered with inch dimensions, this shielded bearing excels in handling significant radial loads while offering protection against contamination. Its compact design, featuring a standard inner ring and optimized internal geometry, ensures smooth operation and long service life in demanding environments. The bearing's ABEC1 precision class and controlled radial internal clearance (MC3) make it an ideal choice for applications where consistent performance and high rotational accuracy are critical.
FR188zz Bearing Model Code Explained, Specifications & Naming Convention
| Suffix / Prefix | Technical Meaning |
|---|---|
| FR | Flanged Outer Ring design, providing ease of mounting and axial location. |
| zz | Bearing is equipped with shields on both sides (2Z). These non-contact shields, made from 300 Series Stainless Steel, protect the internal components from dust and debris while minimizing friction. |
FR188zz Bearing Structural Features & Performance Benefits
- Robust Load Capacity & High Rigidity: The single row deep groove raceway design, combined with 8 high-precision chrome steel balls, provides excellent radial dynamic load capacity (344 lbf) and reliable performance under load. The rigid construction ensures stable operation.
- Optimized High-Speed Performance: The lightweight stainless steel cage effectively retains and spaces the balls, contributing to smooth operation and enabling a limiting speed of 40,000 rpm. The low-friction design is key for high-speed applications.
- Enhanced Contamination Protection: The double-shielded (zz) design offers superior protection against particulate contamination, extending bearing life and reliability in unclean environments. This makes it a low-maintenance solution.
- Precision Engineering: Manufactured to ABEC1 tolerance class with a defined MC3 radial internal clearance, this bearing ensures consistent running accuracy, low vibration, and low noise levels.
FR188zz Bearing Typical Application Areas
The FR188zz is widely used in various precision instruments and compact machinery, including:
- Small Electric Motors and Spindle Drives
- Precision Medical Devices and Dental Handpieces
- Office Automation Equipment (e.g., printers, scanners)
- Instrumentation Fans and Blowers
- Robotic Joints and Small Gearboxes
