SMF82x
SMF Series Stainless Steel Flanged Miniature Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
SMF82x
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
0.42 g
Tolerance class
ABEC1
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
2.5 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
8 mm
Outside diameter tolerance
-0.008mm to 0
Width
2.5 mm
Width tolerance
-0.12mm to 0
Inner Ring Dimensions
Inner ring type
Standard
Outer Ring Dimensions
Flange outer diameter
9.2 mm
Flange thickness
0.6 mm
Ball & Washer Dimensions
Ball diameter
3.969 mm
Ball quantity
7
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
36 lbf
Radial static load rating
14 lbf
Limiting speed
63.9 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:
$ 2.76
/ each
In Stock
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SMF82x Bearing Product Overview & Core Advantages
The 2.5mm bore miniature ball bearing represents a precision-engineered single row radial ball bearing designed for compact applications requiring reliable performance. Featuring an open construction and manufactured entirely from stainless steel, this bearing offers excellent corrosion resistance. Its primary advantage lies in its ability to handle radial loads efficiently within a minimal space envelope, making it ideal for high-precision, small-scale mechanisms where size and weight are critical constraints.
SMF82x Bearing Model Code Explained, Specifications & Naming Convention
| Feature | Designation | Technical Significance |
|---|---|---|
| Seal Type | Open | No integral seals, allowing for higher potential speeds and custom lubrication solutions. Requires a clean operating environment. |
| Tolerance Class | ABEC1 | Defines standard precision levels for runout and dimensional accuracy, suitable for many general-purpose applications. |
| Internal Clearance | MC3 | Specifies a radial internal clearance group (0.002mm to 0.013mm) optimized for general operating conditions. |
| Flange | Integrated | Features a flange (Ø9.2mm) for simplified and secure axial location within a housing, easing installation. |
SMF82x Bearing Structural Features & Performance Benefits
- All-Stainless-Steel Construction: The bearing rings, balls, and cage are manufactured from stainless steel, providing superior corrosion resistance and suitability for harsh or wash-down environments.
- Compact & Lightweight Design: With dimensions of 2.5mm (bore) x 8mm (OD) x 2.5mm (width) and a weight of just 0.42 grams, it is engineered for applications where minimizing mass and size is paramount.
- High-Speed Capability: The open design and stainless steel cage contribute to a high limiting speed of 63,900 rpm, enabling use in demanding, high-velocity scenarios.
- Precision Performance: The ABEC1 tolerance class and controlled MC3 internal clearance ensure smooth and consistent operation, reducing vibration and noise.
- Radial Load Capacity: Engineered to support radial dynamic loads up to 36 lbf and static loads up to 14 lbf, providing reliable performance in its size class.
SMF82x Bearing Typical Application Areas
This miniature flanged ball bearing is ideally suited for:
- Small Precision Motors and stepper motors
- Medical and Dental hand tools
- Miniature Gearboxes and drive systems
- Optical encoders and instrumentation
- RC models and drones
- Office automation equipment and small appliances
