SF625zz
SF Series Stainless Steel Flanged Miniature Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
SF625zz
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
5.52 g
Tolerance class
ABEC1
Seal type
Shielded
For load direction
Radial
Main Dimensions
Bore diameter
5 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
16 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
18 mm
Flange thickness
1 mm
Ball & Washer Dimensions
Ball diameter
2.778 mm
Ball quantity
7
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
298 lbf
Radial static load rating
109 lbf
Limiting speed
32.4 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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Product Overview and Core Advantages
The SF625zz is a single row deep groove ball bearing designed for precision applications requiring reliable performance. Constructed entirely from stainless steel (rings, balls, and cage), it offers excellent corrosion resistance. Its compact flanged design (18mm outer diameter) facilitates secure mounting and positioning. This bearing is engineered to handle primarily radial loads and is characterized by its shielded construction, which helps retain lubrication and exclude contaminants, making it suitable for applications demanding high reliability and long service life.
SF625zz Bearing Model Code Explained, Specifications & Naming Convention
| Suffix | Technical Meaning |
|---|---|
| zz | Indicates the bearing is equipped with non-contact shields (ZZ) on both sides. These metal shields protect the bearing interior from large particulate contaminants while minimizing friction, contributing to a higher limiting speed compared to contact seals. |
Structural Features and Performance Benefits
- Robust Stainless Steel Construction: All critical components, including the rings, 7 precision balls, and cage, are manufactured from stainless steel, providing superior corrosion resistance and durability in harsh environments.
- Optimized Load Capacity: The deep groove raceway and robust design enable efficient handling of radial dynamic loads up to 298 lbf and radial static loads up to 109 lbf.
- High-Speed Capability: The combination of the non-contact ZZ shields and a stainless steel cage allows for a high limiting speed of 32,400 rpm, making it suitable for demanding high-speed applications.
- Precision and Stability: Manufactured to ABEC1 tolerance class with a controlled radial internal clearance (MC3 group), ensuring smooth and consistent operation with minimal vibration.
- Simplified Assembly: The integrated flange (18mm OD, 1mm thick) ensures precise axial location and simplifies housing design and bearing installation.
SF625zz Bearing Typical Application Areas
- Precision Small Motors (e.g., stepper motors, miniature DC motors)
- Medical and Dental Equipment (e.g., handpieces, small pumps)
- Office Automation Equipment (e.g., printers, scanners, copiers)
- Instrumentation and Control Devices
- Food Processing Machinery (benefiting from stainless steel construction)
- Various industrial machinery requiring compact, corrosion-resistant bearings.
