1311 K
1300 Series Self Aligning Ball Bearings
Image may differ from product. See technical specification for details.
Basic Information
Main Dimensions
Inner Ring Dimensions
Outer Ring Dimensions
Performance
Materials
Environment & Compliance
- Fast delivery
- Free shipping on orders over $200
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
1311 K Bearing Product Overview & Core Advantages
The 1311 K is a double row angular contact ball bearing designed for demanding applications requiring high rigidity and reliable performance under combined loads. Featuring a metric system and an open design, this bearing excels in handling significant radial forces while maintaining operational stability. Its tapered bore (1:12) facilitates precise mounting and secure shaft fits, making it ideal for high-precision machinery. Constructed from high-grade chrome steel for both rings and balls, and utilizing a durable nylon cage, the 1311 K delivers exceptional durability and is pre-lubricated for immediate use, operating effectively within a temperature range of -30° to 110 °C.
1311 K Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 1311 | Standard bearing series designation, indicating the bearing dimensions (55mm bore, 120mm OD, 29mm width). |
| K | Denotes a tapered bore with a 1:12 ratio. This allows for an interference fit on an adapter sleeve or withdrawal sleeve, ensuring a secure connection to the shaft. |
1311 K Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row ball construction provides superior high rigidity, enabling the bearing to support substantial radial dynamic load ratings of 11408 lbf and radial static load ratings of 4050 lbf.
- Optimized for Combined Loads: The angular contact design is inherently suited for applications involving combined loads, offering reliable performance where radial and axial forces are present.
- High-Speed Capability: The lightweight nylon cage minimizes centrifugal forces, contributing to a high limiting speed of 7.5 x 1000 rpm, making it a capable high-speed bearing.
- Precision & Stability: Tight dimensional tolerances on the bore, outside diameter, and width ensure precise fit and stable operation in precision bearing applications. The standard CN radial internal clearance is suitable for a wide range of operating conditions.
- Convenience & Compliance: The bearing is pre-lubricated for immediate installation and is compliant with both ROHS and REACH environmental standards.
1311 K Bearing Typical Application Areas
- Industrial Gearboxes and Transmissions
- Material Handling Conveyors
- Agricultural Machinery
- Pump and Compressor Systems
- Electric Motors
