SR156
SR Series Stainless Steel Miniature Bearings
Image may differ from product. See technical specification for details.
Basic Information
Main Dimensions
Inner Ring Dimensions
Ball & Washer Dimensions
Performance
Materials
Environment & Compliance
- Fast delivery
- Free shipping on orders over $200
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
SR156 Bearing Product Overview & Core Advantages
The SR156 is a precision single row deep groove ball bearing manufactured to inch dimensions. Engineered for applications requiring reliable performance in compact spaces, this bearing delivers excellent radial load capacity and smooth operation. Constructed entirely from corrosion-resistant stainless steel, it offers superior durability in challenging environments. With its ABEC1 precision class and optimized internal geometry, the SR156 provides consistent performance for industrial applications demanding high reliability and dimensional stability.
SR156 Bearing Model Code Explained, Specifications & Naming Convention
| Code Element | Technical Meaning |
|---|---|
| SR156 | Standard inch series deep groove ball bearing with specific dimension series |
| Open | No seals or shields, allowing for maximum speed capability and custom lubrication options |
| MC3 | Normal radial internal clearance group (0.00008" to 0.0005") suitable for most applications |
SR156 Bearing Structural Features & Performance Benefits
Optimized Internal Geometry: Features 10 precision stainless steel balls with 0.03941" diameter, providing balanced load distribution and smooth rotational characteristics. The deep groove raceway design enables effective handling of radial loads while accommodating moderate axial loads in both directions.
High-Speed Capability: The open design combined with stainless steel construction allows for limiting speeds up to 47,700 rpm, making it suitable for high-speed applications. The one-piece stainless steel cage ensures stable ball guidance and reduced friction at elevated rotational speeds.
Corrosion Resistance: Manufactured entirely from stainless steel materials, including rings, balls, and cage, providing excellent resistance to corrosion and chemical exposure. This makes the bearing ideal for applications in humid, washdown, or chemically aggressive environments.
Precision Performance: Built to ABEC1 tolerance class with tight dimensional control on bore diameter, outside diameter, and width. The controlled radial internal clearance (MC3 group) ensures predictable performance and consistent operation across the specified temperature range of -86 to 230 °F.
SR156 Bearing Typical Application Areas
- Medical Devices: Surgical instruments, dental handpieces, and laboratory equipment requiring corrosion resistance and precision
- Precision Instruments: Optical devices, measuring instruments, and scientific equipment demanding high rotational accuracy
- Small Motors: Micro motors, servo motors, and miniature DC motors where compact size and reliability are critical
- Office Equipment: Printers, scanners, and copiers requiring quiet operation and long service life
- Food Processing Equipment Conveyor systems and processing machinery where corrosion resistance and cleanability are essential
- Robotics: Small robotic joints, actuators, and precision positioning systems
