SF698
SF Series Stainless Steel Flanged Miniature Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
SF698
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
8.5 g
Tolerance class
ABEC1
Seal type
Open
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
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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SF698 Bearing Product Overview & Core Advantages
The SF698 is a metric single row deep groove ball bearing engineered for precision radial load applications. Constructed entirely from stainless steel (rings, balls, and cage), it offers excellent corrosion resistance and is suitable for a wide operating temperature range from -30°C to 110°C. Its compact flanged design (22mm outer diameter) facilitates secure mounting and positioning. As an open-type bearing with an ABEC1 tolerance class, it provides reliable performance and is designed for applications requiring lubrication, making it a versatile and durable choice for various industrial and precision instruments.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| SF698 | Basic bearing designation, defining the core bearing dimensions (8mm bore, 19mm OD, 6mm width). |
| Open (Seal Type) | No integral seals or shields. This allows for higher limiting speeds and requires external lubrication systems for optimal performance. |
| N/A (Lubrication) | Lubrication is required and not pre-applied, offering flexibility in grease or oil selection for specific application needs. |
SF698 Bearing Structural Features & Performance Benefits
- High Corrosion Resistance: Manufactured entirely from stainless steel, the SF698 is ideal for applications exposed to moisture, chemicals, or washdown environments, ensuring long-term reliability.
- Flanged Outer Ring: The integrated flange (22mm diameter) simplifies axial location and mounting, reducing assembly time and cost while improving positional accuracy.
- Precision Performance: With an ABEC1 tolerance class and a controlled radial internal clearance (MC3 group: 0.002mm to 0.013mm), this bearing provides smooth, low-noise, and low-vibration operation.
- Optimized Dynamic Capacity: The deep groove raceway and 7-ball design enable a radial dynamic load rating of 385 lbf, providing robust performance under significant radial loads.
- High-Speed Capability: The open, single-row stainless steel cage and optimized geometry contribute to a high limiting speed of 32,400 rpm.
SF698 Bearing Typical Application Areas
- Precision Instruments: Optical encoders, measuring devices, and small medical apparatus.
- Small Electric Motors: High-speed spindles in dental handpieces, miniature fans, and pumps.
- Food & Beverage Equipment: Conveyor rollers and machinery components requiring corrosion-resistant stainless steel bearings.
- Office Automation: Scanners, printers, and copiers.
- Robotics: Joints and actuators in small-scale robotic systems.
