1304 C/3
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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1304 C/3 Bearing Product Overview & Core Advantages
The 1304 C/3 is a double row angular contact ball bearing designed for applications requiring high precision and reliability. This metric bearing features an open design without seals, allowing for optimal lubrication management. Its primary advantage lies in its ability to accommodate combined loads—simultaneously handling significant radial forces and moderate axial loads in both directions. The compact design, with a 15 mm width, makes it an ideal solution for space-constrained, high-performance assemblies demanding high rigidity and stable operation.
1304 C/3 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 1304 | Standard bearing series designation, indicating bearing dimensions (20mm bore, 52mm OD). |
| C | Designates a 15° contact angle, optimized for handling axial loads. |
| 3 | Indicates CN radial internal clearance (Normal group), standard for most industrial applications. |
1304 C/3 Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The double row construction provides superior radial and axial stiffness compared to single row bearings, enabling stable performance under combined loads. With a dynamic load rating of 3218 lbf and static load rating of 900 lbf, it delivers reliable operation in demanding conditions.
Precision Engineering: Manufactured from chrome steel for both rings and balls, ensuring high durability and wear resistance. The nylon cage contributes to smooth operation and is suitable for high-speed applications up to 18,000 rpm.
Optimized Internal Clearance: The CN clearance provides optimal performance balance for most operating conditions, ensuring minimal friction and heat generation.
Wide Temperature Range: Operates effectively within -30°C to 110°C, making it suitable for various industrial environments.
1304 C/3 Bearing Typical Application Areas
- Machine Tool Spindles - Providing high precision and rigidity for machining operations
- Industrial Gearboxes - Handling combined loads in power transmission systems
- Precision Instruments - Ensuring accurate positioning and smooth rotation
- Electric Motors - Supporting high-speed rotor assemblies
- Material Handling Equipment - Withstanding radial and axial loads in conveyor systems
- Pumps and Compressors - Maintaining stability under dynamic loading conditions
