6304/D8VK285
6000, 6200 & 6300 Series Metric Standard Ball Bearings
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6304/D8VK285 Bearing Product Overview & Core Advantages
The 6304 is a metric single row deep groove ball bearing engineered for superior performance in a wide range of industrial applications. Its fundamental design excels at accommodating primarily radial loads, while also being capable of handling moderate axial loads in both directions. Manufactured to ABEC 1 | ISO P0 tolerance standards, this bearing offers a reliable balance of precision, durability, and cost-effectiveness. Its open design allows for versatile lubrication options, making it suitable for high-speed operation up to 14,000 rpm. Constructed entirely from hardened Chrome Steel, it ensures excellent wear resistance and a long operational life.
6304/D8VK285 Bearing Model Code Explained, Specifications & Naming Convention
| Model Segment | Interpretation | Technical Significance |
|---|---|---|
| 63 | Series Code | Indicates a medium-duty, single row deep groove ball bearing series with optimized dimensions for load capacity and speed. |
| 04 | Bore Diameter Code | Specifies a standard 20 mm bore diameter (04 * 5 = 20 mm). |
| Open (No Seal/Shield suffix) | Seal Type | The bearing is supplied without seals or shields, allowing for high-speed operation and the flexibility for custom lubrication solutions. |
| CN Radial Clearance | Internal Clearance | Denotes standard radial internal clearance for normal operating conditions and fits. |
6304/D8VK285 Bearing Structural Features & Performance Benefits
- Deep Groove Raceway & High-Capacity Design: The uninterrupted deep groove raceways on both inner and outer rings are fundamental to its ability to support significant radial dynamic load ratings (3574 lbf) and accommodate combined loads.
- Optimized for High-Speed Applications: The open construction and precision-ground components minimize friction and heat generation, enabling a high limiting speed of 14,000 rpm.
- Robust Material Construction: All critical components—rings, balls, and the pressed steel cage—are made from Chrome Steel, ensuring consistent hardness, dimensional stability, and resistance to fatigue.
- Standard Precision & Versatility: Conforming to ABEC 1 (ISO P0) tolerance class, it provides reliable running accuracy for a vast majority of industrial applications. The open design offers flexibility for users to select the most suitable lubricant for their specific speed and temperature requirements.
- Broad Temperature Range: The bearing is capable of operating within a temperature range of -30°C to 120°C, making it suitable for various environmental conditions.
6304/D8VK285 Bearing Typical Application Areas
The 6304 deep groove ball bearing is a versatile component found in numerous sectors, including:
- Electric Motors and Generators
- Gearboxes and Power Transmission Systems
- Industrial Pumps and Compressors
- Material Handling Equipment (e.g., conveyor pulleys)
- Agricultural Machinery
- Automotive Components (e.g., alternators, idlers)
- General Machinery and Precision Instruments
