SMF93
SMF Series Stainless Steel Flanged Miniature Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
SMF93
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
0.83 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
9 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
10.2 mm
Flange thickness
0.6 mm
Ball & Washer Dimensions
Ball diameter
1.588 mm
Ball quantity
6
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
98 lbf
Radial static load rating
31 lbf
Limiting speed
50.4 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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SMF93 Bearing Product Overview & Core Advantages
The SMF93 is a metric single row deep groove ball bearing engineered for precision radial load applications. Constructed entirely from stainless steel, it offers excellent corrosion resistance and reliable performance. Its compact design, with a minimal cross-section, makes it ideal for space-constrained applications requiring high precision and consistent operation. This bearing is designed to accommodate primarily radial loads while offering moderate speed capabilities.
SMF93 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| SMF93 | Standard model designation for this specific bearing size and type. |
| Open (Seal Type) | No integral seals or shields. Requires external sealing in contaminated environments and specific lubrication. |
| ABEC1 | Defines the precision tolerance class, suitable for many general-purpose applications. |
| MC3 (Radial Clearance) | Specifies a greater than normal radial internal clearance (0.002mm to 0.013mm), often selected for applications with thermal expansion considerations. |
SMF93 Bearing Structural Features & Performance Benefits
- Compact & Lightweight Design: With a bore diameter of just 3mm and a width of 2.5mm, this bearing is ideal for miniaturized mechanisms. The low weight of 0.83g minimizes inertial forces.
- Stainless Steel Construction: All components, including rings, balls, and cage, are made from stainless steel, providing superior corrosion resistance and durability in harsh or washdown environments.
- Flanged Outer Ring: The integrated flange (10.2mm diameter) simplifies axial location and mounting, ensuring precise positioning within a housing.
- Radial Load Capacity: Engineered to handle radial dynamic loads up to 98 lbf and static loads up to 31 lbf, providing reliable support in its size class.
- Moderate Speed Performance: The limiting speed of 50,400 rpm is supported by the open design and six precisely sized balls (1.588mm diameter).
SMF93 Bearing Typical Application Areas
This miniature deep groove ball bearing is commonly specified in:
- Small precision electric motors and gear motors
- Medical and dental handpieces
- Optical encoders and instrumentation
- Small drones and RC models
- Office automation equipment (e.g., printers, scanners)
- Precision mechanical assemblies requiring corrosion-resistant components
