RW133
RW Series Extended Inner Ring Miniature Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
RW133
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
28 lbf
Radial static load rating
10 lbf
Limiting speed
80 X 1000 rpm
Lubrication
Required
Radial internal clearance
0.00008" to 0.0005"
Radial internal clearance
MC3
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Stainless Steel
Environment & Compliance
REACH
Compliant
ROHS
Compliant
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 3.48
/ each
In Stock
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RW133 Bearing Product Overview & Core Advantages
The RW133 is a precision miniature ball bearing designed for applications demanding compact size and reliable performance. As a single row deep groove ball bearing with an extended inner ring, it excels in handling radial loads efficiently. Its inch-series dimensions and ABEC1 tolerance class make it an ideal component for high-speed, small-scale mechanisms requiring consistent operation and dimensional accuracy.
RW133 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| RW | Prefix denoting a specific series of miniature inch-size bearings |
| 133 | Bore size designation (0.09375") |
| Open (No Seal) | No contact seals, enabling higher limiting speeds (80,000 rpm) |
| Extended Inner Ring | Facilitates easier mounting and axial positioning |
RW133 Bearing Structural Features & Performance Benefits
- High-Speed Capability: The combination of a stainless steel cage, 10 precision balls, and open design enables a limiting speed of 80,000 rpm, making it suitable for high-velocity applications.
- Robust Construction: Manufactured from chrome steel for both rings and balls, ensuring high hardness, wear resistance, and durability under radial dynamic loads up to 28 lbf.
- Precision Engineering: Features ABEC1 tolerance class and controlled radial internal clearance (MC3 group) for smooth, low-vibration operation and consistent performance.
- Extended Inner Ring Design: Provides a wider mounting surface and simplifies axial location, enhancing assembly accuracy and stability.
- Wide Temperature Range: Operates effectively from -86°F to 230°F, accommodating various environmental conditions.
RW133 Bearing Typical Application Areas
- Small Precision Motors and stepper motors
- Medical Devices and dental handpieces
- Optical Encoders and precision instrumentation
- RC Models and miniature drones
- Office Automation Equipment (printers, scanners)
- Textile Spindles and other high-speed miniature machinery
