1309J
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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1309J Bearing Product Overview & Core Advantages
The 1309J metric ball bearing is a double row angular contact ball bearing designed for demanding applications requiring high load capacity and rigidity. Its open construction and precision manufacturing enable it to handle significant combined loads—both radial and axial forces—making it an ideal choice for high-performance industrial machinery. With a CN radial internal clearance and manufactured from high-grade chrome steel, this bearing delivers reliable operation in a wide temperature range from -30°C to 110°C.
1309J Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 1309 | Standard bearing series designation with 45mm bore diameter |
| J | Indicates CN radial internal clearance (normal clearance group) |
| Open Construction | No seals or shields, suitable for controlled environments with external lubrication |
1309J Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The double row design provides enhanced stiffness and superior load distribution, with a dynamic load rating of 8775 lbf and static load rating of 3015 lbf for reliable performance under heavy combined loads.
Precision Engineering: Manufactured with tight dimensional tolerances (bore: -0.012mm to 0) and CN radial clearance ensures optimal fit and smooth operation in precision applications.
High-Speed Capability: The steel cage construction and optimized internal geometry support limiting speeds up to 8,500 rpm, making it suitable for high-speed applications.
Material Excellence: Both rings and balls are made from chrome steel for exceptional durability and wear resistance, while the steel cage ensures reliable performance under demanding conditions.
1309J Bearing Typical Application Areas
- Industrial Gearboxes and power transmission systems
- Machine Tool Spindles requiring high precision and rigidity
- Electric Motors and motorized applications
- Material Handling Equipment and conveyor systems
- Agricultural Machinery components and implements
- Pump Systems and fluid handling equipment
