SRW3
SRW Series Stainless Steel Extended Inner Ring Miniature Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
SRW3
Basic Information
Bearing type
Ball
System of measurement
Inch
Construction
Single Row
Weight
2.95 g
Tolerance class
ABEC1
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
0.1875"
Bore diameter tolerance
-0.0003" to 0"
Outside diameter
0.5"
Outside diameter tolerance
-0.0003" to 0"
Width
0.1562"
Width tolerance
-0.005" to 0"
Inner Ring Dimensions
Inner ring type
Extended
Inner ring width
0.1875"
Shoulder diameter inner ring
0.276"
Ball & Washer Dimensions
Ball diameter
0.0937"
Ball quantity
7
Performance
Temperature range
-86 to 230 °F
Radial dynamic load rating
224 lbf
Radial static load rating
79 lbf
Limiting speed
38.7 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
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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SRW3 Bearing Product Overview & Core Advantages
The SRW3 is a single row deep groove ball bearing engineered for high-performance applications requiring precision and reliability. Designed to primarily accommodate radial loads, this bearing features an extended inner ring for simplified mounting and axial location. Manufactured entirely from stainless steel, it offers excellent corrosion resistance, making it suitable for demanding environments. Its compact design and ABEC1 precision class ensure smooth operation and long service life in high-speed applications.
SRW3 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| SRW3 | Standard series designation for a single row, deep groove ball bearing with specific dimensions. |
| Open (Seal Type) | No integral seals or shields. Requires external sealing in contaminated environments and specific lubrication. |
| Extended (Inner Ring) | Features a wider inner ring, facilitating easier installation and providing a larger contact surface for axial positioning. |
SRW3 Bearing Structural Features & Performance Benefits
- Optimized Radial Load Capacity: The deep groove raceway and complement of seven precision balls are engineered to efficiently support significant radial loads with a dynamic load rating of 224 lbf.
- High-Speed Capability: The stainless steel cage and optimized internal geometry contribute to a high limiting speed of 38,700 rpm, making it an excellent high-speed bearing choice.
- Corrosion Resistance & Durability: Constructed entirely from stainless steel (rings, balls, and cage), this bearing is inherently resistant to rust and corrosion, ensuring reliability in harsh or washdown environments.
- Precision Performance: Manufactured to ABEC1 tolerance class with a controlled MC3 radial internal clearance, it delivers consistent, low-vibration, and quiet operation essential for precision instruments.
SRW3 Bearing Typical Application Areas
- High-speed spindles in small motors and dental handpieces
- Precision instruments and optical devices
- Food processing and medical equipment (due to stainless steel construction and ROHS/REACH compliance)
- Small pumps, gearboxes, and conveyor systems
- Office automation equipment and precision robotics
