SFRW168zz
SFRW Series Stainless Steel Extended Inner Ring Flanged Miniature Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
SFRW168zz
Basic Information
Bearing type
Ball
System of measurement
Inch
Construction
Single Row
Weight
0.73 g
Tolerance class
ABEC1
Seal type
Shielded
For load direction
Radial
Main Dimensions
Bore diameter
0.25"
Bore diameter tolerance
-0.0003" to 0"
Outside diameter
0.375"
Outside diameter tolerance
-0.0003" to 0"
Width
0.125"
Width tolerance
-0.005" to 0"
Inner Ring Dimensions
Inner ring type
Extended
Inner ring width
0.1562"
Shoulder diameter inner ring
0.285"
Outer Ring Dimensions
Flange outer diameter
0.422"
Flange thickness
0.035"
Ball & Washer Dimensions
Ball diameter
0.0394"
Ball quantity
11
Performance
Temperature range
-86 to 230 °F
Radial dynamic load rating
64 lbf
Radial static load rating
28 lbf
Limiting speed
43.2 X 1000 rpm
Lubrication
Required
Radial internal clearance
0.00008" to 0.0005"
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:
$ 4.29
/ each
In Stock
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SFRW168zz Bearing Product Overview & Core Advantages
The SFRW168zz is a single row deep groove ball bearing designed for precision applications requiring compact dimensions and reliable performance. Manufactured entirely from stainless steel, it offers excellent corrosion resistance. This bearing is shielded (ZZ) on both sides to retain lubrication and exclude contaminants, ensuring long service life. Its extended inner ring facilitates easier mounting and axial location. Engineered to primarily handle radial loads, it is an ideal choice for applications demanding high limiting speeds and operational reliability in challenging environments.
SFRW168zz Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| SFRW168 | Basic bearing designation indicating specific inch dimensions and internal design. |
| zz | Signifies shielded on both sides. The shields protect against contamination while allowing for high-speed operation. |
SFRW168zz Bearing Structural Features & Performance Benefits
- Compact & Robust Design: With a bore diameter of 0.25" and a compact cross-section, this bearing is perfect for space-constrained assemblies. The all-stainless steel construction provides high strength and durability.
- High-Speed Capability: The combination of a stainless steel cage, precision-ground components, and optimized internal geometry enables a high limiting speed of 43,200 rpm.
- Effective Sealing: The non-contact stainless steel shields (ZZ) effectively retain the required grease and protect the rolling elements from dust and other contaminants, enhancing bearing life.
- Precision Performance: Manufactured to ABEC1 tolerance class with a controlled radial internal clearance (MC3 group), ensuring smooth and quiet operation with minimal vibration.
- Extended Inner Ring: The extended inner ring simplifies axial positioning and can facilitate secure locking mechanisms in the assembly.
SFRW168zz Bearing Typical Application Areas
This bearing is widely used in various precision instruments and small machinery, including:
- Small electric motors and spindles
- Precision medical and dental handpieces
- Optical encoders and scanners
- Computer disk drives
- Office automation equipment
- Instrumentation and control devices
