F684zz
F Series Flanged Miniature Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
F684zz
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
1.15 g
Tolerance class
ABEC1
Seal type
Shielded
For load direction
Radial
Main Dimensions
Bore diameter
4 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
9 mm
Outside diameter tolerance
-0.008mm to 0
Width
4 mm
Width tolerance
-0.12mm to 0
Inner Ring Dimensions
Inner ring type
Standard
Outer Ring Dimensions
Flange outer diameter
10.3 mm
Flange thickness
1 mm
Ball & Washer Dimensions
Ball diameter
1.588 mm
Ball quantity
7
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
123 lbf
Radial static load rating
41 lbf
Limiting speed
53 X 1000 rpm
Lubrication
Required
Radial internal clearance
MC3
Radial internal clearance
0.002mm to 0.013mm
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Stainless Steel
Shield material
300 Series Stainless Steel
Environment & Compliance
REACH
Compliant
ROHS
Compliant
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 1.32
/ each
In Stock
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F684zz Bearing Product Overview & Core Advantages
The F684zz is a miniature shielded ball bearing designed for applications demanding compact size and reliable performance. As a single row deep groove ball bearing, it excels at handling radial loads and is engineered for high-speed operation. Its key advantages include a compact design with a 4mm bore, making it ideal for space-constrained assemblies, and its shielded construction which offers protection against contamination. Manufactured to ABEC1 precision tolerances, this bearing ensures consistent performance in high-reliability applications.
F684zz Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Benefit |
|---|---|---|
| F684 | Basic bearing designation indicating a specific size series with a 4mm bore, 9mm OD, and 4mm width. | Defines the core bearing dimensions for compatibility and interchangeability. |
| zz | Denotes double-shielded construction (shields on both sides). | Provides effective protection from dust and debris, extending bearing life and reducing maintenance needs. |
F684zz Bearing Structural Features & Performance Benefits
- Deep Groove Raceway & Single Row Design: The optimized raceway geometry enables smooth operation and efficient handling of radial loads, making it a versatile precision bearing for various applications.
- Double Shielded (zz) Protection: Stainless steel shields on both sides effectively retain lubrication and exclude contaminants, enhancing operational reliability and service life without the need for re-lubrication.
- High-Speed Capability: The combination of a stainless steel cage, seven precision balls, and optimized internal geometry contributes to a high limiting speed of 53,000 rpm, suitable for demanding high-speed applications.
- Precision Manufacturing: Built to ABEC1 tolerance class with controlled radial internal clearance (MC3: 0.002mm to 0.013mm), ensuring consistent running accuracy and low vibration.
F684zz Bearing Typical Application Areas
- Small Precision Motors: Ideal for spindle support in miniature DC motors and stepper motors.
- Office Automation Equipment: Used in printers, scanners, and copiers for paper feed rollers and scanner carriages.
- Medical Devices & Instrumentation: Suitable for small pumps, dental handpieces, and laboratory equipment requiring quiet, reliable operation.
- Robotics & RC Models: Provides precise motion control in small joints, gearboxes, and drive systems.
- Computer Peripherals: Commonly found in cooling fans and small drive mechanisms.
