6304-2RS1N/C3HT51
6300 Series Snap Ring Bearings
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Basic Information
Main Dimensions
Outer Ring Dimensions
Performance
Materials
Environment & Compliance
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6304-2RS1N/C3HT51 Bearing Product Overview & Core Advantages
The 6304-2RS1N/C3HT51 is a single row deep groove ball bearing designed for exceptional reliability in demanding applications. Its key advantages stem from its sealed construction and optimized internal geometry, enabling it to handle significant radial loads and moderate axial loads in both directions. The combination of a C3 radial internal clearance and a snap ring groove on the outer ring provides robust performance under varying thermal and operational conditions, making it an ideal choice for applications requiring high precision and long service life.
6304-2RS1N/C3HT51 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Benefit |
|---|---|---|
| 6304 | Standard bearing series with 20mm bore, 52mm OD, 15mm width. | Standardized dimensions for easy interchangeability. |
| 2RS1 | Contact seals on both sides. | Provides excellent protection against contaminants and retains lubricant. |
| N | Snap ring groove on the outer ring. | Facilitates secure axial location and simplifies housing design. |
| C3 | Greater than normal radial internal clearance. | Accommodates thermal expansion, ideal for applications with temperature fluctuations. |
| HT51 | High-temperature grease filling. | Enables reliable operation within the specified -30°C to 120°C temperature range. |
6304-2RS1N/C3HT51 Bearing Structural Features & Performance Benefits
Robust Sealed Design: The double-contact seals (2RS1) are integral to the bearing's longevity, effectively shielding the chrome steel raceways and balls from dust, moisture, and other contaminants. This design ensures the integrity of the pre-applied HT51 high-temperature grease, resulting in a maintenance-free solution for the bearing's operational life.
Optimized Load Capacity: The single row deep groove geometry is precision-engineered to carry high radial dynamic loads (up to 3574 lbf) and moderate axial loads. The C3 radial clearance provides operational stability under varying speeds and thermal conditions, preventing preload and ensuring smooth rotation.
Secure Mounting & High-Speed Capability: The inclusion of a snap ring groove (N) on the outer ring allows for positive axial location within a housing, reducing assembly complexity and cost. Combined with the ABEC 1 (ISO P0) tolerance class, this bearing offers reliable performance at limiting speeds up to 14,000 rpm.
6304-2RS1N/C3HT51 Bearing Typical Application Areas
The 6304-2RS1N/C3HT51 is engineered for a wide range of industrial applications where reliability and contamination protection are paramount. Key sectors include:
- Electric Motors: Used in various motor types for robust and maintenance-free operation.
- Industrial Gearboxes: Provides reliable support in speed reduction units and power transmission systems.
- Material Handling Equipment: Ideal for conveyor pulleys, rollers, and other components requiring sealed bearings.
- Agricultural Machinery: Withstands harsh environments in equipment such as harvesters and tractors.
- General Industrial Machinery: A versatile choice for pumps, fans, and other machinery demanding long-term, sealed bearing performance.
