RW133zz
RW Series Extended Inner Ring Miniature Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
RW133zz
Basic Information
Bearing type
Ball
System of measurement
Inch
Construction
Single Row
Weight
0.15 g
Tolerance class
ABEC1
Seal type
Shielded
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
0.0937"
Width tolerance
-0.005" to 0"
Inner Ring Dimensions
Inner ring type
Extended
Inner ring width
0.125"
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
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:
$ 3.48
/ each
In Stock
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RW133zz Bearing Product Overview & Core Advantages
The RW133zz is a precision miniature ball bearing designed for demanding applications requiring compact size and reliable performance. As a single row radial ball bearing with shielded construction, it excels in handling radial loads efficiently. Its inch-series dimensions and ABEC1 tolerance class make it an ideal component for high-precision mechanisms where space is limited and operational reliability is critical. The extended inner ring facilitates easier mounting and axial location.
RW133zz Bearing Model Code Explained, Specifications & Naming Convention
| Suffix | Technical Meaning |
|---|---|
| zz | Indicates the bearing is equipped with shields on both sides. This provides effective protection against contamination from solid particles while allowing for higher rotational speeds compared to contact seals. |
| R | Typically denotes a flanged outer ring, though for this specific model, the primary designation "RW133" signifies the core bearing dimensions and construction. |
RW133zz Bearing Structural Features & Performance Benefits
- Compact & Robust Design: The single row construction with a stainless steel cage ensures stable operation and high durability in confined spaces. The extended inner ring provides a larger contact surface for secure mounting.
- Effective Contamination Protection: The 300 Series stainless steel shields (zz) on both sides protect the internal chrome steel balls and raceways from dust and debris, enhancing bearing service life.
- Precision & Smooth Operation: Manufactured to ABEC1 precision class with a controlled radial internal clearance (MC3 group), this bearing delivers low noise and vibration for smooth rotational performance.
- High-Speed Capability: With a limiting speed of 80,000 rpm, it is suitable for high-speed applications. The non-contact shields and optimized internal geometry contribute to this performance.
- Material Quality: Components made from chrome steel (rings and balls) and stainless steel (cage and shields) offer excellent resistance to wear and corrosion.
RW133zz Bearing Typical Application Areas
This miniature bearing is engineered for a wide range of compact and high-speed devices, including:
- Small Precision Motors and Stepper Motors
- Medical Devices and Dental Handpieces
- Optical Encoders and Scanner Assemblies
- Small Fans, Blowers, and Spindle Drives
- Instrumentation and Robotic Joints
