SF698zz
SF Series Stainless Steel Flanged Miniature Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
SF698zz
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
8.7 g
Tolerance class
ABEC1
Seal type
Shielded
For load direction
Radial
Main Dimensions
Bore diameter
8 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
19 mm
Outside diameter tolerance
-0.008mm to 0
Width
6 mm
Width tolerance
-0.12mm to 0
Inner Ring Dimensions
Inner ring type
Standard
Outer Ring Dimensions
Flange outer diameter
22 mm
Flange thickness
1.5 mm
Ball & Washer Dimensions
Ball diameter
3.175 mm
Ball quantity
7
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
385 lbf
Radial static load rating
149 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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SF698zz Bearing Product Overview & Core Advantages
The 61800-2Z is a metric single row deep groove ball bearing designed for exceptional performance in compact spaces. Engineered with stainless steel construction throughout (rings, balls, and cage), it offers superior corrosion resistance. Its key advantage lies in its shielded design (2Z), which effectively retains lubricant and excludes contaminants, enhancing service life in demanding environments. This bearing is optimized for high-speed operation (up to 32,400 rpm) and is capable of handling significant radial loads, making it an ideal choice for applications requiring reliability and precision in a minimal footprint.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 61800 | Series designation for extra small, thin-section deep groove ball bearings. |
| -2Z | Bearing is equipped with non-contact shields on both sides. This provides effective protection against contamination while allowing for high-speed operation with minimal friction increase. |
SF698zz Bearing Structural Features & Performance Benefits
- High-Speed Capability: The combination of a stainless steel cage, precision-ground 3.175 mm balls, and optimized internal geometry enables a very high limiting speed of 32,400 rpm.
- Robust Load Capacity: The deep groove raceway and 7-ball complement provide a high dynamic load rating of 385 lbf, ensuring reliable performance under substantial radial loads.
- Corrosion Resistance & Longevity: Manufactured entirely from stainless steel, this bearing is inherently resistant to rust and corrosion, making it suitable for harsh or wash-down environments.
- Precision & Low Noise: Built to ABEC1 tolerance class with controlled radial internal clearance (MC3 group), it ensures smooth, quiet, and precise rotation.
- Compact & Lightweight Design: With a cross-section of just 6 mm and a weight of only 8.7 grams, it is perfect for applications where space and weight are critical constraints.
SF698zz Bearing Typical Application Areas
- Small Precision Motors: Stepper motors, servo motors, and spindle motors in compact devices.
- Medical and Dental Equipment: Handpieces, pumps, and scanners where corrosion resistance and reliability are paramount.
- Office Automation: Printers, scanners, and copiers.
- Instrumentation and Control Systems: Guidance systems, encoders, and small gearboxes.
- Food Processing and Packaging Machinery: Equipment requiring frequent wash-downs and corrosion-resistant components.
