6304 TN9/C3
6000, 6200 & 6300 Series Metric Standard Ball Bearings
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6304 TN9/C3 Bearing Product Overview & Core Advantages
The 6304 C3 is a single row deep groove ball bearing designed for reliable performance in a wide range of industrial applications. Engineered with precision tolerances (ABEC 1 | ISO P0), it excels at handling primarily radial loads. A key feature is its greater than normal radial internal clearance (C3), which makes it particularly suitable for applications involving thermal expansion, such as in electric motors, or where shaft fits may cause a reduction in operational clearance. Its open design allows for versatile lubrication options, while the lightweight Nylon cage contributes to smooth, high-speed operation up to 14,000 rpm.
6304 TN9/C3 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 6304 | Standard designation for a single row deep groove ball bearing with a 20mm bore, 52mm OD, and 15mm width. |
| C3 | Indicates greater radial internal clearance than normal (C0). This is critical for applications with high thermal gradients or interference fits. |
6304 TN9/C3 Bearing Structural Features & Performance Benefits
- Optimized Internal Geometry: The deep groove raceways and high-quality chrome steel construction provide excellent radial load capacity and long service life.
- High-Speed Capability: The standard Nylon cage is lightweight, reducing centrifugal forces and friction, which enables a high limiting speed of 14,000 rpm for smooth operation.
- Flexible Application (C3 Clearance): The C3 internal clearance is a defining performance feature. It accommodates dimensional changes from heat expansion or press-fits, preventing premature bearing failure due to excessive preload.
- Open Design: The open seal type allows for the bearing to be customized with various greases or oil lubrication systems to suit specific operational environments and requirements.
6304 TN9/C3 Bearing Typical Application Areas
- Electric Motors and Generators (handles thermal expansion)
- Gearboxes and Transmissions
- Industrial Pumps and Compressors
- Material Handling Equipment
- Agricultural Machinery
