SRW168zz
SRW Series Stainless Steel Extended Inner Ring Miniature Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
SRW168zz
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
Extended
Inner ring width
0.1562"
Shoulder diameter inner ring
0.285"
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:
$ 3.47
/ each
In Stock
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SRW168zz Bearing Product Overview & Core Advantages
The SRW168zz is a single row deep groove ball bearing designed for precision applications requiring reliable performance in compact spaces. Manufactured entirely from stainless steel, it offers excellent corrosion resistance. This bearing is shielded (ZZ) on both sides to protect against contamination and is pre-lubricated for immediate use. Its key advantages include a high limiting speed of 43,200 rpm and the ability to handle significant radial loads, making it an ideal choice for applications demanding high-speed operation and durability.
SRW168zz Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| SRW | Series designation for a specific line of miniature and instrument ball bearings. |
| 168 | Size code defining the core bearing dimensions: 0.25" bore, 0.375" outside diameter. |
| zz | Indicates the bearing is fitted with non-contact shields on both sides. This provides effective protection against dust and other particulates while minimizing friction, contributing to the high limiting speed. |
SRW168zz Bearing Structural Features & Performance Benefits
- Robust Construction: Built entirely from 300 series stainless steel (rings, balls, cage, and shields), ensuring superior corrosion resistance and longevity in harsh environments.
- Optimized Internal Geometry: The deep groove raceway and complement of 11 precision balls enable efficient handling of radial loads and moderate axial loads in both directions.
- High-Speed Capability: The combination of a low-friction stainless steel cage, non-contact shields, and optimized internal geometry allows for a very high limiting speed of 43,200 rpm.
- Precision & Cleanliness: Manufactured to ABEC1 tolerance class with an MC3 radial internal clearance, ensuring smooth and consistent operation. The shields help maintain internal cleanliness, preserving bearing life.
SRW168zz Bearing Typical Application Areas
- Precision Instruments and optical devices requiring small, high-speed, and reliable rotational components.
- Small Motors and spindles used in medical devices, drones, and miniature robotics.
- Office Automation Equipment such as printers, scanners, and small fans.
- Various industrial machinery where compact size, corrosion resistance, and high-speed performance are critical.
