6304/D8
6000, 6200 & 6300 Series Metric Standard Ball Bearings
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6304/D8 Bearing Product Overview & Core Advantages
The 6304/D8 is a single row deep groove ball bearing designed for exceptional performance in general industrial applications. This metric bearing offers a robust solution for handling primarily radial loads, while also accommodating moderate axial loads in both directions. Manufactured to ABEC 1 | ISO P0 tolerance standards, it provides reliable and consistent operation. Its open design allows for versatile lubrication options, making it suitable for a wide range of operating conditions. The combination of high-quality chrome steel construction and a balanced design contributes to its durability and long service life.
6304/D8 Bearing Model Code Explained, Specifications & Naming Convention
| Model Segment | Technical Meaning |
|---|---|
| 6304 | Standard designation for a single row deep groove ball bearing with a 20mm bore, 52mm OD, and 15mm width. |
| /D8 | Suffix indicating a specific radial internal clearance group. In this case, D8 corresponds to a CN clearance, which is the standard (normal) clearance for general applications. |
6304/D8 Bearing Structural Features & Performance Benefits
- Optimized Load Capacity: The deep groove raceway and single row construction are engineered to efficiently support high radial dynamic load ratings (3574 lbf) and radial static load ratings (1765 lbf).
- High-Speed Capability: The precision-ground chrome steel components and balanced design enable a high limiting speed of 14,000 rpm, suitable for demanding applications.
- Versatile Application Range: The open seal type provides flexibility for various lubrication regimes, while the standard CN radial internal clearance ensures reliable performance under normal operating temperatures and conditions.
- Material Integrity: Constructed entirely from high-grade chrome steel (rings, balls, and cage), this bearing offers excellent wear resistance and dimensional stability across its specified temperature range of -30°C to 120°C.
6304/D8 Bearing Typical Application Areas
- Electric Motors and Generators
- Gearboxes and Transmission Systems
- Industrial Fans and Blowers
- Material Handling Equipment (Conveyors, Pulleys)
- Agricultural Machinery
- Automotive Auxiliary Units (Pumps, Compressors)
