SF604
SF Series Stainless Steel Flanged Miniature Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
SF604
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
2.42 g
Tolerance class
ABEC1
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
4 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
12 mm
Outside diameter tolerance
-0.008mm to 0
Width
4 mm
Width tolerance
-0.12mm to 0
Inner Ring Dimensions
Inner ring type
Standard
Outer Ring Dimensions
Flange outer diameter
13.5 mm
Flange thickness
1 mm
Ball & Washer Dimensions
Ball diameter
2 mm
Ball quantity
7
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
165 lbf
Radial static load rating
57 lbf
Limiting speed
43.2 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:
$ 1.59
/ each
In Stock
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SF604 Bearing Product Overview & Core Advantages
The SF604 is a metric miniature ball bearing designed for high-speed operation and radial load applications. As a single row deep groove ball bearing with an open seal type, it offers excellent versatility in compact spaces. Manufactured entirely from stainless steel, it provides superior corrosion resistance, making it ideal for applications requiring high reliability and long service life in challenging environments. Its precision ABEC1 tolerance class ensures consistent performance for demanding technical applications.
SF604 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| SF604 | Standard model number for this specific bearing size (4mm bore, 12mm OD, 4mm width). |
| Open (Implied) | No contact seals or shields. Allows for higher speeds and easy re-lubrication, but requires a clean operating environment. |
| Stainless Steel | Material for rings, balls, and cage. Provides excellent corrosion resistance. |
SF604 Bearing Structural Features & Performance Benefits
- Compact & Lightweight Design: With a bearing width of only 4mm and a weight of 2.42g, the SF604 is engineered for applications where space and weight are critical constraints.
- High-Speed Capability: The open design and stainless steel cage contribute to a high limiting speed of 43,200 rpm, suitable for demanding rotational applications.
- Corrosion Resistance: The all-stainless steel construction ensures reliable performance and a long operational life in humid or corrosive environments, complying with ROHS and REACH standards.
- Precision Performance: Manufactured to ABEC1 precision class standards with a controlled radial internal clearance (C2/MC3 group), ensuring smooth and quiet operation.
SF604 Bearing Typical Application Areas
This miniature precision bearing is ideally suited for:
- Small Precision Motors and Spindles
- Medical Devices and Dental Handpieces
- Optical Encoders and Precision Instruments
- Office Automation Equipment (e.g., small printers, scanners)
- Radio-Controlled Models and Drones
