6306-ZNR/C3
6300 Series Snap Ring Bearings
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Basic Information
Main Dimensions
Outer Ring Dimensions
Performance
Materials
Environment & Compliance
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6306-ZNR/C3 Bearing Product Overview & Core Advantages
The 6306-ZNR/C3 is a single row deep groove ball bearing engineered for robust performance in demanding applications. Its shielded design provides effective contamination protection, while the C3 radial internal clearance makes it exceptionally suitable for applications involving thermal expansion or heavy loads. A key feature is the integral snap ring on the outer ring, which enables simplified axial location within a housing, reducing design complexity and assembly time. This bearing offers a high limiting speed and reliable operation, making it an excellent choice for general industrial machinery where high reliability and ease of installation are paramount.
6306-ZNR/C3 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Significance |
|---|---|---|
| 6306 | Basic Bearing Number | Denotes a metric, single row deep groove ball bearing with a 30mm bore, 72mm OD, and 19mm width. |
| Z | Shield on one side | Protects bearing internals from large contaminants while allowing for high-speed operation. |
| NR | Snap Ring Groove and Ring | A snap ring is fitted to the outer ring, providing a positive axial locating surface and simplifying housing design. |
| C3 | Radial Internal Clearance | Greater than normal clearance. Ideal for applications with heavy loads or where interference fits and operational heat generate significant expansion. |
6306-ZNR/C3 Bearing Structural Features & Performance Benefits
- Optimized for Heavy Loads and Thermal Expansion: The C3 clearance is a critical feature that prevents bearing seizure under heavy radial loads or in high-temperature environments, ensuring operational reliability and longevity.
- Simplified Axial Location: The integrated snap ring (NR) eliminates the need for complex shoulder machining in the housing. This feature provides a secure axial location, reduces parts count, and streamlines the assembly process.
- Effective Contamination Protection: The non-contact steel shield (Z) effectively seals the bearing against large particulate contaminants like dust and dirt, extending service life without significantly impacting the high limiting speed.
- Robust Construction: Manufactured from chrome steel for both rings, balls, and cage, this bearing ensures high strength, durability, and consistent performance under the specified dynamic and static load ratings.
6306-ZNR/C3 Bearing Typical Application Areas
The 6306-ZNR/C3 is versatile and finds use in a wide range of industrial machinery where its specific features provide distinct advantages. Common applications include:
- Electric Motors and Gearboxes
- Material Handling Conveyors
- Agricultural Machinery
- Industrial Fans and Blowers
- Pumps and Compressors
