6303-2RSH/C3
6000, 6200 & 6300 Series Metric Standard Ball Bearings
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6303-2RSH/C3 Bearing Product Overview & Core Advantages
The 6303-2RSH/C3 is a single row deep groove ball bearing engineered for robust performance in demanding applications. Its primary advantage lies in its ability to efficiently support radial loads while accommodating moderate axial loads in both directions. The bearing features integral contact seals (2RSH) for superior contamination protection and is supplied with a C3 radial internal clearance, making it exceptionally suitable for applications involving thermal expansion or where interference fits are used. This combination of sealed construction and optimized clearance delivers high reliability and long service life in a compact, metric design.
6303-2RSH/C3 Bearing Model Code Explained, Specifications & Naming Convention
- 6303: Basic model number denoting a medium series, single row deep groove ball bearing with a 17mm bore and 47mm outside diameter.
- 2RSH: Designates two (2) integral contact seals (RS) on both sides. The "H" suffix indicates the seal is made from a high-performance nitrile rubber (NBR) compound, offering excellent protection against contaminants and moisture.
- C3: Specifies a greater than normal radial internal clearance. This is critical for applications with elevated operational temperatures or where shaft and housing fits result in a reduction of the original internal clearance.
6303-2RSH/C3 Bearing Structural Features & Performance Benefits
Sealed for Life & Contamination Resistance: The double-sided 2RSH contact seals are the cornerstone of this bearing's durability. They effectively retain lubrication and exclude harmful contaminants like dust and moisture, significantly extending the bearing's operational life and enabling maintenance-free operation in many environments.
Optimized Internal Clearance for Demanding Conditions: The C3 radial clearance provides operational stability in applications prone to thermal expansion. This prevents pre-loading of the bearing at high temperatures, which can lead to premature failure, ensuring consistent performance and high reliability.
Robust Load Capacity & Precision: Manufactured from chrome steel for both rings and balls, and featuring a chrome steel cage, this bearing offers a high dynamic and static load rating for its size. Built to ABEC 1 | ISO P0 tolerance standards, it guarantees smooth and precise rotation for a wide range of industrial applications.
6303-2RSH/C3 Bearing Typical Application Areas
The 6303-2RSH/C3 is a versatile component found in numerous sectors, including:
- Electric Motors & Generators
- Gearboxes & Power Transmission Systems
- Industrial Fans & Blowers
- Material Handling Equipment (e.g., conveyor rollers)
- Agricultural Machinery
- Automotive Auxiliary Units (pumps, compressors)
