SRW133
SRW Series Stainless Steel Extended Inner Ring Miniature Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
SRW133
Basic Information
Bearing type
Ball
System of measurement
Inch
Construction
Single Row
Weight
0.15 g
Tolerance class
ABEC1
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
0.09375"
Bore diameter tolerance
-0.0003" to 0"
Outside diameter
0.1875"
Outside diameter tolerance
-0.0003" to 0"
Width
0.0625"
Width tolerance
-0.005" to 0"
Inner Ring Dimensions
Inner ring type
Extended
Inner ring width
0.0937"
Shoulder diameter inner ring
0.118"
Ball & Washer Dimensions
Ball diameter
0.0236"
Ball quantity
10
Performance
Temperature range
-86 to 230 °F
Radial dynamic load rating
25 lbf
Radial static load rating
9 lbf
Limiting speed
72 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
Environment & Compliance
REACH
Compliant
ROHS
Compliant
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 4.17
/ each
In Stock
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SRW133 Bearing Product Overview & Core Advantages
The SRW133 is a single row deep groove ball bearing designed for high-precision applications requiring reliable performance in compact spaces. Manufactured entirely from stainless steel, it offers excellent corrosion resistance. Its core advantage lies in its ability to handle primarily radial loads efficiently. Featuring an extended inner ring for simplified axial location, this bearing is an ideal, cost-effective solution for instruments and machinery where space is at a premium and operational reliability is critical.
SRW133 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| SRW | Series designation for a specific range of miniature, inch-sized ball bearings. |
| 133 | Denotes specific bearing dimensions within the series. |
| Open (from spec) | No seals or shields, allowing for higher limiting speeds but requiring a clean operating environment or external sealing. |
| Extended Inner Ring (from spec) | The inner ring is wider than the outer ring, facilitating easier mounting and axial positioning. |
SRW133 Bearing Structural Features & Performance Benefits
- Compact Design & High Precision: With a bore diameter of just 0.09375" and a width of 0.0625", this bearing is engineered for ultra-compact assemblies. Its ABEC1 tolerance class ensures consistent, reliable performance for general precision applications.
- Corrosion Resistance: Constructed entirely from stainless steel (rings, balls, and cage), the SRW133 is suitable for applications exposed to moisture, mild chemicals, or requiring washdown, supporting a wide temperature range from -86 to 230 °F.
- High-Speed Capability: The open design and stainless steel cage contribute to a high limiting speed of 72,000 rpm, making it suitable for high-speed spindles and small motors.
- Radial Load Capacity: The deep groove raceway and 10 stainless steel balls provide a dynamic load rating of 25 lbf and a static load rating of 9 lbf, enabling it to handle significant radial loads for its size.
SRW133 Bearing Typical Application Areas
- Precision Instruments: Optical encoders, measuring devices, and laboratory equipment.
- Small Motors and Spindles: High-speed dental handpieces, miniature DC motors, and spindle drives for small CNC machinery.
- Office Automation Equipment: Scanners, printers, and copiers.
- Medical Devices: Small surgical tools and diagnostic equipment where corrosion resistance is beneficial.
- Robotics: Joints and actuators in small-scale robotic arms.
