SR133 2rs
SR 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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SR133 2rs Bearing Product Overview & Core Advantages
The SR133 2RS is a single row deep groove ball bearing designed for precision applications requiring reliable performance in compact spaces. Manufactured entirely from stainless steel with inch dimensions, this sealed bearing offers excellent corrosion resistance and is pre-lubricated for immediate use. Its primary advantage lies in its ability to efficiently handle radial loads while its deep groove raceway provides smooth, low-friction operation. The inclusion of nitrile rubber seals (2RS) ensures robust protection against contaminants, making it a durable and maintenance-friendly solution for various industrial and precision instruments.
SR133 2rs Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Benefit |
|---|---|---|
| SR133 | Standard bearing series designation with inch bore size | Identifies the bearing's size and series for proper selection |
| 2RS | Contact seals on both sides made of Nitrile Rubber | Provides excellent protection against dust, moisture, and other contaminants, extending service life |
SR133 2rs Bearing Structural Features & Performance Benefits
- Deep Groove Design & Single Row Construction: The optimized raceway geometry enables smooth operation and effective handling of radial loads, making it suitable for high-speed applications.
- Full Stainless Steel Construction: Both rings, balls, and cage are manufactured from stainless steel, providing superior corrosion resistance and durability in harsh environments.
- Sealed & Pre-lubricated: The 2RS seals effectively retain lubrication and exclude contaminants, supporting a maintenance-free operation within the specified temperature range of -86 to 230 °F.
- Precision & Speed: With an ABEC1 tolerance class and a limiting speed of 72,000 rpm, this bearing ensures reliable performance in precision assemblies requiring consistent operation.
- Radial Internal Clearance (MC3): The specified clearance range (0.00008" to 0.0005") allows for optimal performance under various thermal and load conditions, reducing noise and vibration.
SR133 2rs Bearing Typical Application Areas
- Precision Instruments: Optical encoders, medical devices, and laboratory equipment
- Small Motors & Gearboxes: Miniature DC motors, servo motors, and precision gear mechanisms
- Office Automation Equipment: Printers, scanners, and copiers
- Robotics & Automation: Small robotic joints, actuators, and conveyor system guides
- Consumer Electronics: Disk drives, cooling fans, and small appliances
