1308 EM
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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1308 EM Bearing Product Overview & Core Advantages
The 1308 EM is a double row deep groove ball bearing designed for exceptional performance in demanding applications. This metric bearing excels at handling significant radial loads while maintaining smooth operation. Its open design allows for versatile lubrication options, and the robust construction using chrome steel rings and balls ensures high durability and a long service life. The 1308 EM is engineered for applications requiring high reliability and consistent performance under substantial loads.
1308 EM Bearing Model Code Explained, Specifications & Naming Convention
| Model Segment | Interpretation | Technical Significance |
|---|---|---|
| 1308 | Basic Bearing Number | Defines the core dimensions: 40 mm bore, 90 mm OD, 23 mm width. |
| EM | Cage Designation | Indicates a brass cage, offering high strength, excellent guidance, and suitability for high-speed applications. |
1308 EM Bearing Structural Features & Performance Benefits
- High Load Capacity & Rigidity: The double row ball complement provides a significantly higher radial dynamic load rating of 7605 lbf compared to single row bearings, resulting in superior rigidity and stability for the shaft.
- Optimized for High Speeds: The machined brass cage (EM) ensures precise ball guidance and low friction, contributing to a high limiting speed of 9,500 rpm. The open seal design facilitates efficient heat dissipation.
- Robust Material Construction: Components made from chrome steel provide high hardness, wear resistance, and a long operational lifespan under heavy loads.
- Precision Dimensions: Tight tolerances on the bore, outside diameter, and width ensure precise fit and reliable performance in high-accuracy assemblies.
1308 EM Bearing Typical Application Areas
The 1308 EM bearing is ideally suited for industrial machinery and equipment where high radial load capacity and robustness are paramount. Common applications include:
- Industrial Gearboxes
- Electric Motors and Generators
- Material Handling Conveyors
- Agricultural Machinery
- Pump and Compressor Systems
