SR168zz
SR Series Stainless Steel Miniature Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
SR168zz
Basic Information
Bearing type
Ball
System of measurement
Inch
Construction
Single Row
Weight
0.6 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
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:
$ 1.35
/ each
In Stock
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SR168zz Bearing Product Overview & Core Advantages
The SR168zz is a single row deep groove ball bearing designed for precision and reliability in demanding applications. Manufactured entirely from stainless steel, it offers excellent corrosion resistance. Its shielded design provides effective protection against contaminant ingress while maintaining high-speed capability. This bearing is engineered to primarily handle radial loads and is characterized by its compact inch dimensions (1/4" bore), making it an ideal choice for applications requiring a small footprint, high limiting speed, and consistent performance within a wide temperature range.
SR168zz Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Benefit |
|---|---|---|
| SR | Standard Bearing Series | Indicates a common, widely available design. |
| 168 | Bore & Outer Diameter Code | Specifies the inch bearing dimensions (0.25" bore, 0.375" OD). |
| zz | Shielded on Both Sides | Offers protection from contaminants, preserving internal lubrication and bearing life. |
SR168zz Bearing Structural Features & Performance Benefits
- Single Row Deep Groove Design: The fundamental geometry allows for efficient handling of radial loads and moderate axial loads in both directions.
- Full Stainless Steel Construction: Rings, balls, and cage are all made from stainless steel, providing superior corrosion resistance and durability, suitable for a wide temperature range from -86 to 230 °F.
- Shielded Protection: The non-contact shields help retain lubricant and exclude larger particulate contaminants, contributing to longer service life and reduced maintenance.
- ABEC1 Precision: As a standard tolerance class, it ensures consistent quality and reliable performance for a broad range of industrial applications.
- Optimized Internal Geometry: With 11 balls of 0.03941" diameter and an MC3 radial internal clearance, the bearing is configured for smooth, low-noise operation.
SR168zz Bearing Typical Application Areas
This precision bearing is ideally suited for:
- Small Electric Motors and Gearboxes
- Medical and Dental Instruments
- Precision Spindles and Office Automation Equipment
- Food Processing and Packaging Machinery (due to stainless steel construction)
- Instrumentation and Control Devices
