633 2rs
600 Series Miniature Bearings
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Basic Information
Main Dimensions
Inner Ring Dimensions
Ball & Washer Dimensions
Performance
Materials
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633 2rs Bearing Product Overview & Core Advantages
The 633 2RS is a single row deep groove ball bearing designed for reliable performance in compact applications. This metric bearing features integral rubber seals (2RS) on both sides, providing excellent protection against contaminants and retaining lubricant. Engineered from chrome steel, it offers a robust solution for handling radial loads with a dynamic load rating of 249 lbf. Its compact dimensions (3mm bore, 13mm OD, 5mm width) and ABEC1 precision class make it an ideal choice for applications demanding high reliability and consistent operation.
633 2rs Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 633 | Basic series designation for a single row deep groove ball bearing with specific dimensions (3mm bore, 13mm OD). |
| 2RS | Indicates contact-type Nitrile Rubber Seals on both sides of the bearing. This provides superior sealing effectiveness compared to non-contact shields, protecting against dust and moisture ingress while retaining lubricant for extended service life. |
633 2rs Bearing Structural Features & Performance Benefits
Sealed & Protected Design: The dual 2RS seals ensure the bearing is protected from contamination, making it suitable for dirty or humid environments. This design contributes to a maintenance-free operation for the life of the lubricant under normal conditions.
Robust Load Capacity: The deep groove raceway and chrome steel construction enable efficient handling of radial dynamic loads up to 249 lbf, providing reliable performance in a wide range of applications.
Precision & Stability: Manufactured to ABEC1 tolerance standards with an MC3 radial internal clearance (0.002mm to 0.013mm), this bearing offers smooth and precise rotation, minimizing vibration and noise.
High-Speed Capability: With a limiting speed of 40,000 rpm and a stainless steel cage to guide the balls accurately, the 633 2RS is capable of stable operation at high rotational speeds.
633 2rs Bearing Typical Application Areas
The 633 2RS bearing is commonly used in:
- Small Electric Motors (e.g., in power tools, drones, household appliances)
- Precision Instruments and medical devices
- Office Machinery such as printers and scanners
- Robotics and small gearboxes
- Various light-duty industrial equipment requiring compact, sealed bearings
