SMF63
SMF Series Stainless Steel Flanged Miniature Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
SMF63
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
0.26 g
Tolerance class
ABEC1
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
3 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
6 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
7.2 mm
Flange thickness
0.6 mm
Ball & Washer Dimensions
Ball diameter
0.8 mm
Ball quantity
8
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
36 lbf
Radial static load rating
12 lbf
Limiting speed
63.9 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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SMF63 Bearing Product Overview & Core Advantages
The SMF63 is a metric miniature ball bearing designed for applications demanding compact size and reliable performance. As a single row deep groove ball bearing with an open design, it excels in handling primarily radial loads. Constructed entirely from stainless steel, it offers excellent corrosion resistance, making it suitable for harsh environments. Its small dimensions (3mm bore, 6mm OD, 2mm width) and lightweight (0.26g) design are ideal for space-constrained, high-speed applications such as miniature motors and precision instruments.
SMF63 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| SMF | Manufacturer's series designation for miniature flanged bearings. |
| 6 | Indicates a 6mm outside diameter. |
| 3 | Indicates a 3mm bore diameter. |
| (Implied: Open, No Seal) | The absence of a seal suffix denotes an open bearing, allowing for higher limiting speeds and custom lubrication options. |
SMF63 Bearing Structural Features & Performance Benefits
- Compact & Lightweight Design: With a width of just 2mm and a weight of 0.26g, this bearing is engineered for miniature assemblies where space and weight are critical factors.
- Integrated Flange: The flange (7.2mm outer diameter) facilitates secure and simplified mounting, ensuring precise axial location and reducing assembly complexity and cost.
- High-Speed Capability: The open design and stainless steel cage contribute to a high limiting speed of 63,900 rpm, making it suitable for demanding high-speed applications.
- Stainless Steel Construction: All components (rings, balls, cage) are made from stainless steel, providing superior corrosion resistance and durability in challenging environments. It is compliant with ROHS and REACH directives.
- Precision & Clearance: Manufactured to ABEC1 tolerance class with an MC3 radial internal clearance (0.002mm to 0.013mm), ensuring smooth and consistent operation.
SMF63 Bearing Typical Application Areas
This miniature flanged bearing is ideally suited for:
- Small Precision Motors (e.g., drone motors, miniature DC motors)
- Medical and Dental Handpieces
- Optical and Precision Instruments
- Office Automation Equipment (e.g., printers, scanners)
- Robotics and RC Models
- Small Fans and Pumps
