FR8zz
FR Series Flanged Miniature Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
FR8zz
Basic Information
Bearing type
Ball
System of measurement
Inch
Construction
Single Row
Weight
24.1 g
Tolerance class
ABEC-1
Seal type
Shielded
For load direction
Radial
Main Dimensions
Bore diameter
0.5"
Bore diameter tolerance
-0.0003" to 0"
Outside diameter
1.125"
Outside diameter tolerance
-0.0004" to 0"
Width
0.3125"
Width tolerance
-0.005" to 0"
Outer Ring Dimensions
Flange outer diameter
1.225"
Flange thickness
0.062"
Ball & Washer Dimensions
Ball diameter
0.1875"
Ball quantity
8
Performance
Temperature range
-86 to 230 °F
Radial dynamic load rating
1149 lbf
Radial static load rating
543 lbf
Limiting speed
32 X 1000 rpm
Lubrication
Required
Radial internal clearance
C0
Radial internal clearance
0.00008" to 0.00071"
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Stainless Steel
Environment & Compliance
ROHS
Compliant
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 1.86
/ each
In Stock
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FR8zz Bearing Product Overview & Core Advantages
The FR8zz is a high-precision, single row deep groove ball bearing designed for reliable performance in demanding applications. Engineered with inch dimensions, it excels at handling radial loads and offers a compact design for space-constrained assemblies. Its construction with shielded sides provides effective contamination protection, while the ABEC-1 tolerance class ensures consistent and predictable operation, making it an ideal choice for applications requiring a balance of cost-effectiveness and performance.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| FR8 | Specific bearing series and size designation. |
| zz | Indicates the bearing is shielded on both sides (2Z). This provides protection against contaminants while allowing for higher limiting speeds compared to sealed bearings. |
FR8zz Bearing Structural Features & Performance Benefits
- Robust Load Capacity: The single row deep groove construction is optimized to carry significant radial loads (Dynamic: 1149 lbf, Static: 543 lbf), providing reliable support in various mechanical systems.
- Precision Engineering: Manufactured to ABEC-1 tolerance standards and a C0 radial internal clearance, this bearing ensures smooth operation, reduced vibration, and consistent performance.
- Shielded Protection: The zz (2Z) shields protect the internal components from dust and debris, enhancing bearing life and reliability without significantly impeding the limiting speed of 32,000 rpm.
- High-Quality Materials: Components made from Chrome Steel (rings and balls) and a Stainless Steel cage offer excellent durability, corrosion resistance, and stable performance across a wide temperature range (-86 to 230 °F).
FR8zz Bearing Typical Application Areas
This versatile ball bearing is commonly specified in:
- Electric Motors and Small Gearboxes
- Precision Instruments and Medical Devices
- Office Automation Equipment (e.g., printers, scanners)
- Power Tools and Light Industrial Machinery
- Conveyor Systems and Idler Pulleys
