SFR168zz
SFR Series Stainless Steel Flanged Miniature Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
SFR168zz
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
Standard
Outer Ring Dimensions
Flange outer diameter
0.422"
Flange thickness
0.036"
Ball & Washer Dimensions
Ball diameter
0.03941"
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
MC3
Radial internal clearance
0.00008" to 0.0005"
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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SFR168zz Bearing Product Overview & Core Advantages
The SFR168zz is a single row deep groove ball bearing designed for precision applications requiring high reliability. Manufactured entirely from stainless steel, it offers excellent corrosion resistance. Its compact inch dimensions (0.25" bore, 0.375" OD) and shielded design make it ideal for protecting against contaminant ingress while maintaining smooth operation. This bearing is engineered to primarily handle radial loads efficiently and is suitable for a wide operating temperature range, making it a robust and versatile component for demanding miniature and instrument-grade applications.
SFR168zz Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| SFR | Manufacturer series designation for miniature flanged bearings. |
| 168 | Specifies the bearing size, corresponding to a 0.25" bore and 0.375" outside diameter. |
| zz | Indicates the bearing is fitted with shields on both sides. This provides effective protection against dust and other particulates, enhancing bearing life in contaminated environments. |
SFR168zz Bearing Structural Features & Performance Benefits
- Robust Construction & Corrosion Resistance: The all-stainless steel construction (rings, balls, cage, and shield) ensures high resistance to rust and corrosion, which is critical for applications exposed to moisture or harsh chemicals.
- Effective Contamination Protection: The non-contact shields (zz) help retain lubricant and exclude larger contaminants, contributing to a longer, maintenance-free service life.
- High-Speed Capability: With a limiting speed of 43,200 rpm, this bearing is suitable for high-velocity applications. The stainless steel cage and optimized internal geometry contribute to stable operation at these high speeds.
- Precision Performance: Manufactured to ABEC1 tolerance class with a controlled radial internal clearance (MC3), this bearing provides consistent and smooth running for precision equipment.
- Flanged Design: The integral flange simplifies mounting and positioning, providing accurate axial location within a housing.
SFR168zz Bearing Typical Application Areas
- Precision instruments and gauges
- Small electric motors and gear motors
- Medical and dental handpieces
- Office automation equipment (printers, scanners)
- Robotics and miniature automation systems
- Radio control models and drones
- Optical positioning systems
