SRW188zz
SRW Series Stainless Steel Extended Inner Ring Miniature Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
SRW188zz
Basic Information
Bearing type
Ball
System of measurement
Inch
Construction
Single Row
Weight
2.32 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
0.5"
Outside diameter tolerance
-0.0003" to 0"
Width
0.1875"
Width tolerance
-0.005" to 0"
Inner Ring Dimensions
Inner ring type
Extended
Inner ring width
0.2188"
Shoulder diameter inner ring
0.33"
Ball & Washer Dimensions
Ball diameter
0.0787"
Ball quantity
8
Performance
Temperature range
-86 to 230 °F
Radial dynamic load rating
186 lbf
Radial static load rating
72 lbf
Limiting speed
36 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:
$ 3.47
/ each
In Stock
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SRW188zz Bearing Product Overview & Core Advantages
The SRW188zz is a single row deep groove ball bearing designed for high-performance applications requiring precision and reliability. Manufactured entirely from stainless steel, it offers excellent corrosion resistance. Its compact design, featuring a shielded (ZZ) construction, provides effective protection against contaminants while maintaining low friction. This bearing is engineered to handle significant radial loads and is characterized by its extended inner ring for simplified mounting and axial location.
SRW188zz Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| SRW | Manufacturer's series prefix. |
| 188 | Bore size code, corresponding to a bore diameter of 0.25". |
| zz | Denotes a bearing with shielded seals on both sides. This protects the internal components from dust and other particulates, extending service life. |
SRW188zz Bearing Structural Features & Performance Benefits
- Robust Construction: The single row deep groove raceway and complement of 8 precision balls enable smooth operation and high radial dynamic load rating of 186 lbf.
- Corrosion Resistance: All components, including rings, balls, cage, and shields, are made from stainless steel, making it ideal for harsh environments and ensuring long-term performance.
- Precision & Speed: Built to ABEC1 tolerance class with a MC3 radial internal clearance, this bearing supports reliable operation at a limiting speed of 36,000 rpm.
- Simplified Assembly: The extended inner ring design facilitates easier mounting and provides a positive stop for axial positioning within an assembly.
- Shielded Protection: The non-contact ZZ shields help retain lubrication and exclude contaminants, reducing maintenance needs without significantly impacting high-speed capability.
SRW188zz Bearing Typical Application Areas
This bearing is suited for a wide range of precision instruments and compact machinery, including:
- Small electric motors and gearboxes
- Medical and dental handpieces
- Office automation equipment (e.g., printers, scanners)
- Precision spindles and encoders
- Food processing machinery (benefiting from its stainless steel construction)
