FR133 2rs
FR Series Flanged Miniature Bearings
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Basic Information
Main Dimensions
Inner Ring Dimensions
Outer Ring Dimensions
Ball & Washer Dimensions
Performance
Materials
Environment & Compliance
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FR133 2rs Bearing Product Overview & Core Advantages
The FR133 2RS is a single row deep groove ball bearing designed for high-performance applications requiring compact dimensions and reliable operation. This inch-series bearing features an optimized sealed construction that provides excellent protection against contaminants while retaining lubrication. Engineered to primarily handle radial loads, its precision-ground chrome steel components and ABEC1 tolerance class ensure smooth, quiet operation and long service life, making it an ideal choice for applications demanding high reliability in constrained spaces.
FR133 2rs Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Significance |
|---|---|---|
| FR133 | Basic bearing designation (inch series) | Defines the core dimensions: 0.09375" bore, 0.1875" OD. |
| 2RS | Double Contact Seals (Nitrile Rubber) | Provides superior sealing effectiveness on both sides, protecting against dust, moisture, and other contaminants, and retaining lubricant for extended maintenance-free operation. |
FR133 2rs Bearing Structural Features & Performance Benefits
Robust Sealed Design: The dual nitrile rubber seals (2RS) create an effective barrier, making the bearing suitable for environments where contamination is a concern. This contributes to its maintenance-free characteristics over its operational lifespan.
Precision & Load Capacity: Manufactured from high-grade chrome steel with an ABEC1 tolerance class, the bearing offers consistent performance and dimensional stability. It is rated for a dynamic load of 28 lbf and a static load of 10 lbf, providing reliable support for radial forces.
Optimized Internal Geometry: With 7 precision balls and a stainless steel cage, the bearing maintains smooth rotation and stability at its limiting speed of 80,000 rpm. The standard MC3 radial internal clearance ensures optimal performance under normal operating conditions and temperatures ranging from -86 to 230 °F.
FR133 2rs Bearing Typical Application Areas
The compact size and sealed nature of the FR133 2RS make it well-suited for a variety of small precision instruments and devices, including:
- Small DC Motors and Gearboxes
- Medical Devices and Instrumentation
- Office Automation Equipment (e.g., printers, scanners)
- Precision Robotics and Actuators
- Radio-Controlled Models and Drones
