FR155 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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FR155 2rs Bearing Product Overview & Core Advantages
The FR155 2RS is a miniature sealed ball bearing engineered for precision applications requiring reliable performance in compact spaces. This single row deep groove ball bearing features integrated rubber seals (2RS) that provide superior protection against contamination while retaining lubricant. Its inch-series dimensions and ABEC1 precision class make it ideal for applications demanding consistent operation and high rotational accuracy. The bearing's design enables efficient handling of radial loads while offering moderate axial load capacity, making it a versatile solution for various industrial and commercial applications.
FR155 2rs Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Significance |
| FR155 | Basic bearing designation with inch dimensions | Indicates specific bore (0.15625"), OD (0.3125"), and width (0.125") |
| 2RS | Double rubber contact seals on both sides | Provides excellent contamination protection and lubricant retention |
FR155 2rs Bearing Structural Features & Performance Benefits
Sealed Construction: The nitrile rubber contact seals (2RS) effectively exclude contaminants while retaining lubricant, ensuring long service life in demanding environments. This makes the bearing suitable for applications where maintenance access is limited.
Precision Engineering: Manufactured to ABEC1 tolerance standards with chrome steel rings and balls, the bearing delivers consistent performance and smooth operation. The stainless steel cage ensures proper ball spacing and contributes to stable operation at the limiting speed of 53,000 rpm.
Load Capacity & Durability: With a dynamic load rating of 69 lbf and static load rating of 27 lbf, this bearing provides reliable performance in radial load applications. The optimized MC3 radial internal clearance (0.00008" to 0.0005") ensures proper fit and thermal expansion compensation.
Compact Design: The miniature dimensions and lightweight construction (0.56g) make it ideal for space-constrained applications while maintaining robust performance characteristics.
FR155 2rs Bearing Typical Application Areas
- Small precision motors and miniature DC motors
- Medical devices and laboratory equipment
- Office automation equipment including printers and scanners
- Instrumentation and measurement devices
- Robotics and small automation systems
- Consumer electronics requiring reliable rotary motion
- Dental handpieces and medical tools
