R4 2rs
R Series Miniature Bearings
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Basic Information
Main Dimensions
Inner Ring Dimensions
Ball & Washer Dimensions
Performance
Materials
Environment & Compliance
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R4 2rs Bearing Product Overview & Core Advantages
The R4-2RS is a single row deep groove ball bearing designed for exceptional performance in compact spaces. Featuring inch dimensions and integrated rubber seals (2RS), this bearing delivers reliable radial load capacity while providing effective contamination protection. Its precision ABEC1 tolerance and optimized internal geometry ensure smooth operation, making it ideal for applications demanding high rotational accuracy and long service life in challenging environments.
Model Code Technical Breakdown
| Code Segment | Technical Meaning | Performance Impact |
|---|---|---|
| R4 | Basic bearing designation with 1/4" bore diameter | Standard inch size for compatibility |
| 2RS | Double rubber contact seals on both sides | Superior contamination exclusion and grease retention |
R4 2rs Bearing Structural Features & Performance Benefits
Deep Groove Geometry: The optimized raceway profile enables efficient radial load distribution and accommodates moderate axial loads in both directions.
Sealing System: Dual nitrile rubber seals (2RS) provide excellent protection against contaminants while retaining lubrication, extending bearing service intervals.
Precision Components: Manufactured from chrome steel rings and balls with stainless steel cage, ensuring dimensional stability and corrosion resistance.
Internal Clearance: Standard MC3 radial clearance (0.00008" to 0.0005") provides optimal fit for most applications with moderate operating temperatures.
Speed Capability: The precision-ground components and balanced design support limiting speeds up to 38,000 rpm for demanding rotational applications.
R4 2rs Bearing Typical Application Areas
- Small electric motors and miniature gearboxes
- Precision instruments and laboratory equipment
- Office automation devices including printers and scanners
- Medical equipment components requiring quiet operation
- Robotic joints and small mechanism assemblies
- Power tools and handheld industrial devices
