SMR104 2rs
SMR Series Stainless Steel Miniature Bearings
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Basic Information
Main Dimensions
Inner Ring Dimensions
Ball & Washer Dimensions
Performance
Materials
Environment & Compliance
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SMR104 2rs Bearing Product Overview & Core Advantages
The SMR104 2RS is a metric single row deep groove ball bearing engineered for precision applications requiring reliable performance in compact spaces. Featuring stainless steel construction throughout its rings, balls, and cage, this bearing offers excellent corrosion resistance. Its sealed design with 2RS nitrile rubber seals provides effective contamination protection while retaining lubrication. With a 4mm bore and 10mm OD, this compact bearing delivers radial load capacity of 122 lbf dynamic and maintains stable operation across a wide temperature range from -30°C to 110°C. The bearing comes pre-lubricated and is suitable for applications where maintenance-free operation is essential.
Model Code Detailed Breakdown
| Code Segment | Technical Meaning | Significance |
|---|---|---|
| SMR104 | Basic bearing designation | Indicates metric series with 4mm bore, 10mm OD, 4mm width |
| 2RS | Double rubber seals on both sides | Provides superior contamination protection and lubricant retention |
SMR104 2rs Bearing Structural Features & Performance Benefits
Deep Groove Geometry: The optimized raceway design enables efficient handling of radial loads while accommodating moderate axial loads in both directions.
Stainless Steel Construction: All critical components including rings, balls, and cage are manufactured from stainless steel, providing excellent corrosion resistance and suitability for harsh environments.
Sealed Protection: The dual nitrile rubber seals (2RS) effectively exclude contaminants while retaining lubrication, enabling maintenance-free operation throughout the bearing's service life.
Precision Performance: Manufactured to ABEC1 tolerance class with MC3 radial internal clearance (0.002mm to 0.013mm), ensuring consistent performance and smooth operation.
High-Speed Capability: With a limiting speed of 43,200 rpm, this bearing is suitable for high-speed applications requiring reliable rotation.
SMR104 2rs Bearing Typical Application Areas
- Small precision motors and miniature DC motors
- Medical devices and laboratory equipment requiring corrosion resistance
- Office automation equipment including printers and scanners
- Instrumentation and measurement devices
- Robotic components and small automation systems
- Consumer electronics where compact size and reliability are critical
