SF603zz
SF Series Stainless Steel Flanged Miniature Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
SF603zz
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
1.61 g
Tolerance class
ABEC1
Seal type
Shielded
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
5 mm
Width tolerance
-0.12mm to 0
Inner Ring Dimensions
Inner ring type
Standard
Outer Ring Dimensions
Flange outer diameter
10.5 mm
Flange thickness
0.7 mm
Ball & Washer Dimensions
Ball diameter
1.588 mm
Ball quantity
6
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
47 lbf
Radial static load rating
31 lbf
Limiting speed
50.4 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
Shield material
300 Series 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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SF603zz Bearing Product Overview & Core Advantages
The SF603zz is a metric miniature ball bearing designed for high-precision, compact applications. As a single row deep groove ball bearing, it is optimized to handle primarily radial loads efficiently. Constructed entirely from stainless steel, it offers excellent corrosion resistance. Its shielded (ZZ) design provides effective protection against contamination while maintaining low running torque, making it a reliable choice for applications demanding long service life and consistent performance in challenging environments.
SF603zz Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| SF603 | The base bearing designation, indicating a specific series with a 3 mm bore, 9 mm outer diameter, and 5 mm width. |
| zz | Denotes that the bearing is fitted with non-contact shields (Z) on both sides. This provides protection from large particulate contaminants while allowing for higher limiting speeds compared to contact seals. |
SF603zz Bearing Structural Features & Performance Benefits
- Compact & Lightweight Design: With a 3 mm bore and a total weight of just 1.61 g, this bearing is ideal for space-constrained and weight-sensitive applications.
- Stainless Steel Construction: All components, including rings, balls, cage, and shields, are made from stainless steel, ensuring superior corrosion resistance and suitability for use in harsh or wash-down environments.
- Radial Load Capacity: Engineered to handle radial dynamic loads up to 47 lbf and radial static loads up to 31 lbf.
- High-Speed Capability: The non-contact shields and optimized internal geometry contribute to a high limiting speed of 50,400 rpm.
- Precision Performance: Manufactured to ABEC1 tolerance class with a controlled radial internal clearance (MC3), ensuring smooth and consistent operation.
SF603zz Bearing Typical Application Areas
This miniature bearing is widely used in:
- Small Precision Motors (e.g., stepper motors, DC motors)
- Medical and Dental Handpieces
- Office Automation Equipment (printers, scanners, copiers)
- Instrumentation and Control Devices
- Robotics and RC Models
- Computer Cooling Fans
