1303
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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1303 Bearing Product Overview & Core Advantages
The 1303 metric double row angular contact ball bearing is engineered for applications requiring high radial load capacity and compact design. Featuring an open construction with a brass cage, this precision bearing delivers reliable performance in demanding environments. Its double row design provides superior rigidity and stability, making it ideal for machinery where space constraints and load handling are critical. The bearing comes pre-lubricated and maintains stable operation within a temperature range of -30°C to 110°C.
1303 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 1303 | Standard metric series double row angular contact ball bearing |
| Open | No seals or shields, suitable for controlled environments |
| CN | Normal radial internal clearance for general applications |
| Lubricated | Factory pre-lubricated for immediate installation and operation |
1303 Bearing Structural Features & Performance Benefits
Double Row Design: The two rows of balls provide enhanced rigidity and superior radial load distribution compared to single row bearings, reducing deflection under heavy loads.
High Load Capacity: With a dynamic load rating of 2858 lbf and static load rating of 765 lbf, this bearing handles significant radial stresses while maintaining dimensional stability.
Optimized Cage Construction: The brass cage ensures smooth ball guidance and stable operation at the limiting speed of 20,000 rpm, making it suitable for high-speed applications.
Precision Manufacturing: Tight dimensional tolerances on bore diameter (17mm) and outside diameter (47mm) guarantee consistent performance and easy integration into precision assemblies.
1303 Bearing Typical Application Areas
- Electric Motors and Generators: For rotor support where high radial loads and speeds are present
- Industrial Gearboxes: Providing stable shaft support in power transmission systems
- Material Handling Equipment: Conveyor systems and pulley assemblies requiring robust bearing performance
- Agricultural Machinery: Implement drives and PTO shafts demanding reliable bearing solutions
- General Industrial Machinery: Pumps, compressors, and fans where compact bearing dimensions and load capacity are essential
