6404
200, 300 & 6400 Series Industrial Single Row Deep Groove Ball Bearings
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Basic Information
Main Dimensions
Performance
Materials
Environment & Compliance
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6404 Bearing Product Overview & Core Advantages
The 6404 metric ball bearing is a single row deep groove ball bearing designed for outstanding performance in radial load applications. Manufactured to ABEC-1 precision tolerance standards, this open-type bearing delivers reliable operation and long service life. Its robust construction using chrome steel rings and balls with a stainless steel cage ensures durability under demanding conditions. The 6404 bearing is engineered for applications requiring consistent performance with a radial dynamic load rating of 6902 lbf and capability to handle speeds up to 10,000 rpm.
6404 Bearing Model Code Explained, Specifications & Naming Convention
| Code Element | Technical Meaning |
|---|---|
| 64 | Series designation indicating specific dimensions and load characteristics |
| 04 | Bore diameter code representing 20mm bore size |
| Open Construction | No seals or shields, allowing for optimal lubrication customization |
| ABEC-1 | Precision tolerance class ensuring consistent running accuracy |
| CN Clearance | Normal radial internal clearance suitable for most applications |
6404 Bearing Structural Features & Performance Benefits
The single row deep groove design provides excellent radial load capacity while accommodating moderate axial loads in both directions. The stainless steel cage ensures optimal ball guidance and contributes to the bearing's high-speed capability of 10,000 rpm. The chrome steel construction offers superior hardness and wear resistance, while the open design allows for customized lubrication strategies to match specific operating conditions. With precise dimensional tolerances (bore: -0.01mm to 0, OD: -0.013mm to 0) and normal radial clearance (CN), this bearing delivers predictable performance and easy installation.
6404 Bearing Typical Application Areas
- Electric motors and generators
- Industrial gearboxes and transmission systems
- Material handling equipment including conveyors
- Agricultural machinery components
- Pump and compressor assemblies
- General industrial machinery requiring reliable radial support
