6303-2RSH/C3W64
6000, 6200 & 6300 Series Metric Standard Ball Bearings
Image may differ from product. See technical specification for details.
Basic Information
Main Dimensions
Performance
Materials
Environment & Compliance
- Fast delivery
- Free shipping on orders over $200
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
6303-2RSH/C3W64 Bearing Product Overview & Core Advantages
The 6303-2RSH/C3W64 is a metric sealed deep groove ball bearing designed for reliable performance in demanding applications. This single row bearing excels at handling primarily radial loads while offering robust construction and long-term reliability. Its key advantages include pre-lubrication with Solid Oil for maintenance-free operation, enhanced radial internal clearance (C3) for stable operation under thermal expansion, and sealed construction (2RSH) for superior contamination protection. This combination makes it an ideal, cost-effective solution for applications requiring consistent performance with minimal maintenance.
6303-2RSH/C3W64 Bearing Model Code Explained, Specifications & Naming Convention
| Suffix | Technical Meaning | Benefit |
|---|---|---|
| 2RSH | Contact Seals on both sides | Provides excellent protection against contaminants and moisture ingress. |
| C3 | Greater than normal radial internal clearance | Accommodates thermal expansion, preventing preload and ensuring smooth operation in varying temperature conditions. |
| W64 | Solid Oil lubrication | Ensures lifelong lubrication, eliminates relubrication needs, and prevents oil leakage. |
6303-2RSH/C3W64 Bearing Structural Features & Performance Benefits
The 6303-2RSH/C3W64 incorporates several key structural features that deliver distinct performance advantages:
- Deep Groove Raceway & Single Row Design: Optimized for high-capacity radial load handling, providing robust support for rotating shafts.
- Contact Seals (2RSH): These seals, made from NBR, effectively shield the bearing internals from dust, dirt, and moisture, significantly extending bearing service life in harsh environments.
- Solid Oil Lubrication (W64): The bearing is permeated with a polymer matrix saturated with oil. This technology offers consistent lubrication, is leak-proof, and enables maintenance-free operation throughout the bearing's lifespan.
- C3 Internal Clearance: This enhanced clearance is critical for applications with expected temperature variations, preventing binding and reducing friction and heat generation.
- Chrome Steel Construction: All core components (rings, balls, cage) are manufactured from high-grade chrome steel, ensuring high durability, wear resistance, and consistent performance under the specified temperature range of -30°C to 120°C.
6303-2RSH/C3W64 Bearing Typical Application Areas
The 6303-2RSH/C3W64 is well-suited for a wide range of industrial applications where reliability and minimal maintenance are paramount. Key sectors include:
- Electric Motors: Ideal for main shafts in various AC and DC motors.
- Industrial Gearboxes: Provides reliable support in light to medium-duty gearbox assemblies.
- Material Handling Equipment: Used in conveyor rollers, pulleys, and fans.
- Agricultural Machinery: Suitable for components in pumps, transmissions, and implements exposed to dusty conditions.
- General Industrial Machinery: A versatile choice for pumps, compressors, and other machinery requiring a sealed, pre-lubricated ball bearing.
