6311 M
6000, 6200 & 6300 Series Metric Standard Ball Bearings
Image may differ from product. See technical specification for details.
Basic Information
Main Dimensions
Performance
Materials
Environment & Compliance
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
6311 M Bearing Product Overview & Core Advantages
The 6311 M is a single row deep groove ball bearing designed for high-performance applications requiring exceptional precision and reliability. As a metric bearing with a P6 tolerance class, it offers superior dimensional accuracy and running precision. Its core advantages include a high radial dynamic load rating of 16,658 lbf, making it capable of handling significant loads, and a limiting speed of 11,000 rpm, suitable for demanding operational environments. The open design, combined with a stainless steel cage, ensures optimal performance and durability.
6311 M Bearing Model Code Explained, Specifications & Naming Convention
| Model Segment | Technical Meaning | Advantage |
|---|---|---|
| 6311 | Standard bearing series designation indicating a bore diameter of 55 mm, outside diameter of 120 mm, and width of 29 mm. | Defines the core bearing dimensions for interchangeability and selection. |
| M | Designates a machined brass cage (often referred to as a "window-type" or "crown-type" cage). | Provides high strength, excellent guidance, and superior performance at high speeds and under demanding conditions. |
6311 M Bearing Structural Features & Performance Benefits
- High Precision & Rigidity: Manufactured to a P6 tolerance class with a CN radial internal clearance, this bearing ensures precise shaft positioning, smooth operation, and minimal runout, contributing to overall system rigidity.
- Superior Load Capacity: The optimized raceway geometry and high-quality chrome steel construction enable it to support high radial loads and moderate axial loads in both directions.
- High-Speed Capability: The lightweight and robust machined brass cage (M) minimizes centrifugal forces and friction, allowing for stable operation up to the limiting speed of 11,000 rpm.
- Versatile & Durable: The open seal type allows for various lubrication options, while the stainless steel cage offers excellent corrosion resistance and longevity. It operates effectively within a temperature range of -30°C to 120°C.
6311 M Bearing Typical Application Areas
The 6311 M bearing is engineered for use in a wide range of industrial machinery where precision and reliability are paramount. Key applications include:
- Electric Motors and Generators
- Gearboxes and Transmission Systems
- Industrial Pumps and Compressors
- Material Handling Equipment
- Agricultural Machinery
