SMF52
SMF Series Stainless Steel Flanged Miniature Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
SMF52
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
0.19 g
Tolerance class
ABEC1
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
2 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
5 mm
Outside diameter tolerance
-0.008mm to 0
Width
2 mm
Width tolerance
-0.12mm to 0
Inner Ring Dimensions
Inner ring type
Standard
Outer Ring Dimensions
Flange outer diameter
6.2 mm
Flange thickness
0.6 mm
Ball & Washer Dimensions
Ball diameter
0.8 mm
Ball quantity
6
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
29 lbf
Radial static load rating
8 lbf
Limiting speed
76.5 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:
$ 3
/ each
In Stock
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Product Overview and Core Advantages
The SMF52 is a metric miniature ball bearing designed for precision applications requiring compact dimensions and reliable performance. Constructed as a single row radial ball bearing, it excels in handling radial loads in high-speed scenarios. Manufactured entirely from stainless steel, it offers excellent corrosion resistance. Its open design allows for versatile lubrication options, making it suitable for applications demanding high cleanliness and custom lubrication regimes. With an ABEC1 tolerance class, it provides a cost-effective solution for general precision requirements.
SMF52 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| SMF52 | Standard model designation for this specific bearing size (2mm bore, 5mm OD, 2mm width) with a flange. |
| Open (Implied) | No seals or shields, allowing for high-speed operation and custom lubrication. |
| Flange (Implied) | Integral flange (6.2mm OD) for simplified mounting and axial location. |
Structural Features and Performance Benefits
- Compact and Lightweight Design: With a 2mm bore, 5mm outside diameter, and a weight of only 0.19g, it is ideal for space-constrained and weight-sensitive applications.
- High-Speed Capability: The open construction and stainless steel cage contribute to a high limiting speed of 76,500 rpm, suitable for demanding rotary mechanisms.
- Corrosion Resistance: All components, including rings, balls, and cage, are made from stainless steel, ensuring durability in harsh or washdown environments.
- Simplified Mounting: The integrated flange provides easy installation and secure axial positioning, reducing assembly complexity.
- Standard Internal Clearance: Features an MC3 radial internal clearance (0.002mm to 0.013mm), offering a versatile fit for a wide range of operating conditions.
SMF52 Bearing Typical Application Areas
- Small Precision Motors (e.g., drone motors, miniature DC motors)
- Medical and Dental Handpieces
- Optical and Instrumentation Devices (e.g., scanners, encoders)
- Office Automation Equipment (e.g., printers, scanners)
- Radio-Controlled Models and Hobbyist Projects
- Low-Torque, High-Speed Spindles
