FR155zz
FR Series 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
- Fast delivery
- Free shipping on orders over $200
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
FR155zz Bearing Product Overview & Core Advantages
The FR155zz is a single row deep groove ball bearing designed for high-performance applications requiring reliable operation in compact spaces. This inch-series bearing is characterized by its shielded construction, which offers effective protection against contamination while maintaining low running torque. Its primary advantages include a high limiting speed of 53,000 rpm and the ability to handle significant radial loads, making it an ideal choice for precision instruments and high-speed mechanisms. Manufactured from chrome steel with a stainless steel cage, it ensures durability and consistent performance across a wide temperature range.
FR155zz Bearing Model Code Explained, Specifications & Naming Convention
| Suffix | Technical Meaning | Benefit |
|---|---|---|
| zz | Shielded on both sides | Provides effective protection from dust and debris, extending bearing life and reducing maintenance needs. |
| (FR155) | Standard inch bore designation | Ensures compatibility with imperial shaft sizes and simplifies sourcing for North American machinery. |
FR155zz Bearing Structural Features & Performance Benefits
- Optimized Load Capacity: The single row deep groove raceway and complement of 10 precision balls enable efficient handling of the radial dynamic load rating of 69 lbf, providing reliable support in demanding applications.
- High-Speed Capability: The combination of a lightweight stainless steel cage and optimized internal geometry contributes to the high limiting speed, minimizing friction and heat generation at elevated RPMs.
- Enhanced Contamination Resistance: The 300 Series Stainless Steel shields (zz) protect the bearing's internals from particulate ingress, which is critical for maintaining performance and longevity in unclean environments.
- Precision & Stability: Manufactured to ABEC1 tolerance class with a controlled MC3 radial internal clearance, this bearing offers consistent running accuracy and smooth operation, reducing vibration and noise.
FR155zz Bearing Typical Application Areas
- Small Precision Motors and stepper motors
- Medical and Dental Handpieces
- Office Automation Equipment such as printers and scanners
- Instrumentation and laboratory equipment
- Small Fans and Blowers
- Textile Spindles and other high-speed machinery components
