1306 K/236725
1300 Series Self Aligning Ball Bearings
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Basic Information
Main Dimensions
Inner Ring Dimensions
Outer Ring Dimensions
Performance
Materials
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1306 K/236725 Bearing Product Overview & Core Advantages
The 1306 K is a double row angular contact ball bearing designed for high-performance applications requiring superior rigidity and precise operation. This metric bearing features a tapered bore (1:12), enabling a secure and precise interference fit on adapter sleeves or withdrawal sleeves for simplified mounting and dismounting. Its fundamental advantage lies in its ability to accommodate significant combined loads—simultaneously handling radial forces and axial loads from both directions. Constructed with a nylon cage and manufactured from high-grade chrome steel, it offers a robust solution for compact spaces where high rigidity and reliability are paramount.
1306 K/236725 Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Significance & Benefit |
|---|---|---|
| K | Tapered Bore | Indicates a conical bore with a 1:12 taper. This design facilitates precise axial positioning and a secure fit on a tapered shaft seat or adapter sleeve, crucial for applications requiring high running accuracy. |
| - | Open (No Seal) | The bearing is supplied without integral seals, making it suitable for applications where the operating environment is clean or where custom sealing solutions are implemented. This allows for higher limiting speeds. |
1306 K/236725 Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row design provides significantly greater radial and axial rigidity compared to single row bearings. This makes the 1306 K ideal for applications subjected to heavy combined loads, ensuring stable operation and extended service life.
- Optimized for Precision: Manufactured with CN radial internal clearance as standard, this bearing is suited for most industrial applications requiring precise rotational performance. The nylon cage contributes to smooth operation, reduced friction, and is ideal for high-speed operation.
- Tapered Bore Advantage: The 1:12 tapered bore allows for micro-adjustment of the internal clearance during mounting. By driving the bearing onto the tapered seat, a precise fit is achieved, eliminating creep and enhancing overall system stability.
- Material Integrity: Both the rings and balls are made from chrome steel, offering excellent hardness, wear resistance, and durability. The cage is constructed from nylon, which is lightweight and provides quiet operation.
1306 K/236725 Bearing Typical Application Areas
The 1306 K bearing is engineered for demanding environments across various industries. Its high rigidity and ability to handle combined loads make it a preferred choice in:
- Electric Motors and Gearboxes
- Industrial Pumps and Compressors
- Material Handling Equipment
- Agricultural Machinery
- Applications utilizing adapter sleeves for mounting on straight shafts.
