SMR126
SMR Series Stainless Steel Miniature Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
SMR126
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
1.25 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
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
0.002mm to 0.013mm
Radial internal clearance
MC3
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:
$ 1.35
/ each
In Stock
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SMR126 Bearing Product Overview & Core Advantages
The SMR126 is a metric miniature deep groove ball bearing engineered for high precision and reliable performance in compact spaces. As a single row, open design bearing, it is optimized to carry primarily radial loads. Manufactured entirely from stainless steel, it offers excellent corrosion resistance. Its key advantages include a compact cross-section, a high limiting speed of 38,700 rpm, and compliance with ABEC1 precision tolerances, making it an ideal component for applications demanding accuracy and longevity.
Model Code Breakdown
| Code Segment | Interpretation | Technical Significance |
|---|---|---|
| SMR | Series Prefix | Denotes a specific series of miniature, stainless steel bearings. |
| 1 | Bore Code | Indicates a specific bore diameter sizing convention. |
| 26 | Bore Size | Corresponds to a bore diameter of 6 mm. |
| No Seals / Open | Seal Type | The bearing is open, allowing for high-speed operation and custom lubrication schemes, but requires a clean operating environment. |
SMR126 Bearing Structural Features & Performance Benefits
- Compact & Lightweight Design: With dimensions of 6x12x3 mm and a weight of only 1.25 g, this bearing is ideal for applications with severe space and weight constraints.
- High-Speed Capability: The open design and optimized internal geometry, including 8 precision balls, contribute to a very high limiting speed of 38,700 rpm.
- Corrosion Resistance: Constructed entirely from stainless steel (rings, balls, and cage), the bearing is well-suited for harsh environments and offers protection against corrosion.
- Precision Performance: Manufactured to ABEC1 tolerance class with a controlled radial internal clearance (MC3 group: 0.002mm to 0.013mm), ensuring smooth and quiet operation with minimal runout.
- Load Handling: Engineered to support radial dynamic loads up to 123 lbf and radial static loads up to 48 lbf, providing reliable performance in demanding miniature assemblies.
SMR126 Bearing Typical Application Areas
This bearing is commonly specified in:
- Precision Instruments: Optical encoders, measuring devices, and laboratory equipment.
- Small Motors and Drives: Stepper motors, miniature DC motors, and spindle drives for high-speed applications.
- Office Automation: Printers, scanners, and copiers.
- Medical Devices: Dental handpieces, small pumps, and diagnostic equipment.
- Robotics: Joints and actuators in small-scale robotic systems.
