1311KJ
1300 Series Self Aligning Ball Bearings
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Basic Information
Main Dimensions
Inner Ring Dimensions
Outer Ring Dimensions
Performance
Materials
Environment & Compliance
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1311KJ Bearing Product Overview & Core Advantages
The 1311KJ is a double row angular contact ball bearing designed for demanding applications requiring high rigidity and precision. This metric bearing features a tapered bore (1:12) for secure mounting on adapter sleeves or withdrawal sleeves. Its double row design enables it to support substantial radial loads and is engineered for high reliability in industrial settings. The open seal type allows for easy re-lubrication, contributing to its long service life in appropriate operating conditions.
1311KJ Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Significance |
|---|---|---|
| 1311 | Standard Bearing Series & Size Designation | Defines the core dimensions: 55mm bore, 120mm OD, 29mm width. |
| K | Tapered Bore (1:12) | Enables precise axial positioning and secure fit on a tapered shaft seat, crucial for high rigidity applications. |
| J | Pressed Steel Cage, Rolling Element Guided | Contributes to smooth operation and is suitable for the bearing's limiting speed. |
1311KJ Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The double row construction provides superior radial stiffness, making it ideal for applications with significant radial loads. The optimized internal geometry ensures stable performance under load.
Precision & Reliability: Manufactured from chrome steel for both rings and balls, this bearing offers high durability and resistance to wear. The tight dimensional tolerances on the bore diameter and outside diameter ensure consistent performance and easy integration.
Speed & Lubrication: With a limiting speed of 7,500 rpm, it is suitable for a range of high-speed machinery. The bearing comes pre-lubricated and the open design facilitates maintenance and re-lubrication to sustain performance.
Standard Internal Clearance: The CN radial internal clearance is the standard group, offering a balance of fit and operational temperature rise for general applications.
1311KJ Bearing Typical Application Areas
The 1311KJ is engineered for robust performance in various industrial sectors. Key applications include:
- Industrial Gearboxes and Transmission Systems
- Material Handling Equipment such as conveyor pulleys
- Agricultural Machinery
- Electric Motors and Medium-Duty Pumps
