1311KC3
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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1311KC3 Bearing Product Overview & Core Advantages
The 1311KC3 is a double row angular contact ball bearing designed for demanding industrial applications requiring high load capacity and operational reliability. This metric bearing features a tapered bore (1:12) for secure mounting on adapter sleeves or withdrawal sleeves, ensuring precise shaft fixation. Its double row construction enables it to accommodate significant combined loads—simultaneously handling radial forces and axial loads from both directions—making it an exceptionally rigid and stable solution. Manufactured from high-grade chrome steel and pre-lubricated for immediate use, it is engineered for longevity and consistent performance in challenging environments.
1311KC3 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Significance |
|---|---|
| 1311 | Standard bore diameter (55 mm) and series designation. |
| K | Indicates a tapered bore with a 1:12 ratio. |
| C3 | Specifies a greater radial internal clearance than normal, suitable for applications with thermal expansion or where interference fits are used. |
1311KC3 Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The double row ball bearing design provides superior stiffness, effectively supporting heavy radial loads and axial loads in both directions. With a dynamic load rating of 11408 lbf and a static load rating of 4050 lbf, it is built for durability under significant stress.
Optimized Internal Design: The nylon cage ensures smooth operation at the specified limiting speed of 7,500 rpm, reducing friction and wear. The C3 radial clearance accommodates thermal expansion, preventing preload and ensuring consistent performance.
Material & Lubrication: Constructed from chrome steel for both rings and balls, the bearing offers excellent wear resistance and fatigue life. It comes pre-lubricated, facilitating easy installation and immediate operation within a temperature range of -30°C to 110°C.
1311KC3 Bearing Typical Application Areas
- Industrial Gearboxes and power transmission systems
- Material Handling Equipment such as conveyor pulleys
- Agricultural Machinery including harvesters and tractors
- Electric Motors and pumps requiring robust support
- Vibrating Screens and other machinery with oscillating motion
