686
600 Series Miniature Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
686
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
1.87 g
Tolerance class
ABEC1
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
6 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
13 mm
Outside diameter tolerance
-0.008mm to 0
Width
3.5 mm
Width tolerance
-0.12mm to 0
Inner Ring Dimensions
Inner ring type
Standard
Ball & Washer Dimensions
Ball diameter
2 mm
Ball quantity
8
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
207 lbf
Radial static load rating
80 lbf
Limiting speed
40 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:
$ 1.13
/ each
In Stock
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686 Bearing Product Overview & Core Advantages
The 686 metric ball bearing is a single row deep groove ball bearing designed for reliable performance in compact spaces. Engineered to primarily support radial loads, this bearing features an open design for versatile lubrication options. Manufactured to ABEC1 precision tolerances, it offers a cost-effective solution for applications requiring smooth operation and consistent performance. Its small bearing dimensions (6mm bore, 13mm OD, 3.5mm width) and lightweight construction (1.87g) make it ideal for miniaturized and portable devices.
686 Bearing Model Code Explained, Specifications & Naming Convention
| Feature | Designation | Technical Meaning |
|---|---|---|
| Basic Model | 686 | Denotes a metric series, single row deep groove ball bearing with a 6mm bore, 13mm OD, and 3.5mm width. |
| Seal Type | Open | No integral seals or shields. Allows for custom lubrication schemes and high-speed operation. |
| Tolerance Class | ABEC1 | Specifies standard precision levels for running accuracy. |
| Internal Clearance | MC3 | Defines a radial internal clearance group of 0.002mm to 0.013mm, suitable for general operating conditions. |
686 Bearing Structural Features & Performance Benefits
- Robust Material Construction: Both rings and balls are made from Chrome Steel for high load capacity and durability, while the stainless steel cage ensures corrosion resistance and cage integrity.
- Optimized Load Rating: With a dynamic load rating of 207 lbf and a static load rating of 80 lbf, this bearing is engineered to handle significant radial forces for its size.
- High-Speed Capability: The open design and stainless steel cage contribute to a limiting speed of 40,000 rpm, making it a capable high-speed bearing for demanding applications.
- Precision Internal Geometry: The deep groove raceway and controlled radial internal clearance ensure low noise and vibration, promoting smooth rotation.
686 Bearing Typical Application Areas
This 686 miniature bearing is widely used in applications where compact size and reliability are critical. Key sectors include:
- Small Electric Motors: Ideal for spindle support in miniature DC motors and stepper motors.
- Precision Instruments: Used in optical encoders, gauges, and medical devices.
- Office Automation Equipment: Found in printers, scanners, and small fans.
- Radio-Controlled Models & Drones: Provides smooth operation in motors and gearboxes.
- Consumer Electronics: Suitable for small drives and mechanisms within various electronic products.
