SMF126
SMF Series Stainless Steel Flanged Miniature Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
SMF126
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
1.44 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
12 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
13.2 mm
Flange thickness
0.6 mm
Ball & Washer Dimensions
Ball diameter
1.588 mm
Ball quantity
8
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
123 lbf
Radial static load rating
48 lbf
Limiting speed
38.7 X 1000 rpm
Lubrication
Required
Radial internal clearance
MC3
Radial internal clearance
0.002mm to 0.013mm
Materials
Ring material
Stainless Steel
Ball material
Stainless Steel
Cage material
Stainless Steel
Environment & Compliance
REACH
Compliant
ROHS
Compliant
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 1.59
/ each
In Stock
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SMF126 Bearing Product Overview & Core Advantages
The SMF126 is a metric single row deep groove ball bearing designed for precision applications requiring compact dimensions and reliable performance. Constructed entirely from stainless steel, it offers excellent corrosion resistance. Its core advantages include a high limiting speed of 38,700 rpm and the ability to handle significant radial dynamic loads, making it ideal for high-speed, compact mechanisms. The open design allows for versatile lubrication options to suit specific operational needs.
SMF126 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| SMF126 | Standard model designation for this specific bearing size (6x12x3 mm). |
| Open (Seal Type) | No integral seals or shields. This allows for higher limiting speeds and custom lubrication schemes, though it requires a clean operating environment or external sealing. |
| MC3 (Radial Internal Clearance) | Specifies a greater than normal internal clearance (0.002mm to 0.013mm), beneficial for applications with thermal expansion or where interference fits are used. |
SMF126 Bearing Structural Features & Performance Benefits
- All-Stainless-Steel Construction: The rings, balls, and cage are made from stainless steel, providing superior corrosion resistance and making the bearing suitable for harsh environments, including washdown applications.
- Deep Groove Raceway: The geometry of the deep groove raceway enables the bearing to support not only radial loads but also moderate axial loads in both directions.
- High-Speed Capability: The combination of an open design, ABEC1 precision tolerances, and a stable stainless steel cage contributes to its high limiting speed of 38,700 rpm.
- Precision & Rigidity: Manufactured to ABEC1 tolerance class, the bearing ensures consistent running accuracy and contributes to the overall rigidity of the assembly.
SMF126 Bearing Typical Application Areas
This bearing is ideally suited for compact, high-speed devices and corrosive environments. Common applications include:
- Small precision electric motors and spindles
- Medical and dental handpieces
- Optical encoders and instrumentation
- Food processing and packaging machinery
- RC models and drones
