FR133
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 Bearing Product Overview & Core Advantages
The FR133 is a precision miniature ball bearing designed for demanding applications requiring high reliability in compact spaces. As an open-type, single row radial ball bearing, it delivers excellent performance for high-speed operation up to 80,000 rpm. Manufactured to ABEC1 precision tolerances with chrome steel components, this bearing offers a robust solution for radial load applications where space and weight are critical constraints.
FR133 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| FR133 | Basic bearing designation indicating specific bearing dimensions (0.09375" bore × 0.1875" OD) |
| Open | No seals or shields, allowing for optimal high-speed performance and custom lubrication options |
| ABEC1 | Precision tolerance class ensuring consistent running accuracy |
| MC3 | Radial internal clearance group (0.00008" to 0.0005") suitable for most applications |
FR133 Bearing Structural Features & Performance Benefits
Optimized Miniature Design: With a compact bearing size of 0.09375" bore and 0.0625" width, this bearing provides maximum performance in minimal space. The stainless steel cage ensures stable ball guidance at high rotational speeds, while the chrome steel rings and balls deliver excellent wear resistance and durability.
High-Speed Capability: The open construction and precision manufacturing enable operation at limiting speeds of 80,000 rpm, making it ideal for high-velocity applications. The radial dynamic load rating of 36 lbf provides reliable performance under demanding conditions.
Precision Engineering: Manufactured to ABEC1 tolerance standards with controlled radial internal clearance, this bearing ensures smooth, consistent operation with minimal vibration and noise generation.
FR133 Bearing Typical Application Areas
- Precision instruments and measuring devices
- Small motors and miniature drive systems
- Medical devices and dental handpieces
- Office automation equipment and printers
- Robotics and miniature automation systems
- Optical encoders and positioning systems
