F685
F Series Flanged Miniature Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
F685
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
1.33 g
Tolerance class
ABEC1
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
5 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
11 mm
Outside diameter tolerance
-0.008mm to 0
Width
3 mm
Width tolerance
-0.12mm to 0
Inner Ring Dimensions
Inner ring type
Standard
Outer Ring Dimensions
Flange outer diameter
12.5 mm
Flange thickness
0.8 mm
Ball & Washer Dimensions
Ball diameter
1.588 mm
Ball quantity
8
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
137 lbf
Radial static load rating
51 lbf
Limiting speed
45 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
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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F685 Bearing Product Overview & Core Advantages
The F685 is a metric miniature ball bearing designed for applications demanding compact size and reliable performance. As a single row deep groove ball bearing, it is optimized to carry primarily radial loads. Its open design allows for versatile lubrication options, making it suitable for a wide range of compact machinery and precision instruments where space is at a premium. Manufactured to ABEC1 precision class, it offers a cost-effective solution for high-volume applications requiring consistent operation.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| F685 | Standard model number denoting a specific bearing series with a 5mm bore, 11mm OD, and 3mm width. |
| Open | No seals or shields, allowing for high-speed operation and custom lubrication. |
| MC3 | Specifies the radial internal clearance group (0.002mm to 0.013mm), suitable for general operating conditions. |
F685 Bearing Structural Features & Performance Benefits
- Compact & Lightweight Design: With dimensions of 5x11x3 mm and a weight of only 1.33 g, this bearing is ideal for miniaturized assemblies.
- High-Speed Capability: The stainless steel cage and open construction contribute to a high limiting speed of 45,000 rpm.
- Robust Load Capacity: Manufactured from chrome steel for both rings and balls, it provides a dynamic load rating of 137 lbf and a static load rating of 51 lbf.
- Standard Internal Clearance: The MC3 radial clearance ensures smooth operation and accommodates thermal expansion in most applications.
- Flanged Outer Ring: The flange (12.5mm OD) simplifies mounting and positioning, enhancing assembly accuracy.
F685 Bearing Typical Application Areas
The F685 miniature bearing is commonly used in:
- Small DC Motors and Stepper Motors
- Precision Instruments and Optical Encoders
- Office Automation Equipment (e.g., Printers, Scanners)
- Radio-Control Models and Drones
- Medical Devices and Dental Handpieces
- Computer Cooling Fans
