SF608 2rs
SF Series Stainless Steel Flanged Miniature Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
SF608 2rs
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
14.2 g
Tolerance class
ABEC1
Seal type
Sealed
For load direction
Radial
Main Dimensions
Bore diameter
8 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
22 mm
Outside diameter tolerance
-0.008mm to 0
Width
7 mm
Width tolerance
-0.12mm to 0
Inner Ring Dimensions
Inner ring type
Standard
Outer Ring Dimensions
Flange outer diameter
25 mm
Flange thickness
1.5 mm
Ball & Washer Dimensions
Ball diameter
3.969 mm
Ball quantity
7
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
567 lbf
Radial static load rating
223 lbf
Limiting speed
30.6 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
Nitrile Rubber
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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SF608 2rs Bearing Product Overview & Core Advantages
The SF608 2RS is a single row deep groove ball bearing designed for exceptional performance in compact applications. This metric precision bearing features integral rubber seals (2RS) for robust contamination protection. Manufactured entirely from stainless steel (rings, balls, and cage), it offers excellent corrosion resistance. Its core advantages include a high limiting speed of 30,600 rpm and the ability to handle significant radial dynamic loads (567 lbf), making it ideal for applications demanding high reliability and long service life in demanding environments.
SF608 2rs Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| SF608 | Basic bearing designation indicating a single row deep groove ball bearing with a 8 mm bore, 22 mm outside diameter, and 7 mm width. |
| 2RS | Signifies contact-type Nitrile Rubber (NBR) Seals on both sides. This provides superior sealing against dust and moisture compared to non-contact shields, enhancing bearing life in contaminated environments. |
SF608 2rs Bearing Structural Features & Performance Benefits
- Robust Sealed Design: The double-sided 2RS contact seals effectively prevent the ingress of contaminants and retain lubricant, contributing to a maintenance-free and long-lasting operation.
- High-Speed Capability: The optimized design, including a stainless steel cage and precision-ground components, enables a high limiting speed of 30,600 rpm, suitable for demanding rotational applications.
- Corrosion Resistance: Constructed entirely from stainless steel, this bearing is ideal for use in humid, wash-down, or corrosive environments where standard steel bearings would fail.
- Precision & Load Capacity: Built to ABEC1 tolerance class with a MC3 radial internal clearance, it ensures smooth and quiet operation while supporting a substantial radial dynamic load rating of 567 lbf.
- Flanged Outer Ring: The integrated flange (25 mm diameter) simplifies mounting and positioning within a housing, providing accurate axial location and increased assembly rigidity.
SF608 2rs Bearing Typical Application Areas
This versatile bearing is commonly specified in:
- Electric Motors (especially small, high-speed variants)
- Medical and Dental Equipment (e.g., handpieces, small pumps)
- Food Processing and Packaging Machinery (benefiting from its corrosion resistance and sealed design)
- Precision Instruments and Optical Devices
- Small Fans and Blowers
- Office Automation Equipment (e.g., printers, scanners)
