6212-ZNB/C3
6200 Series Snap Ring Bearings
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Basic Information
Main Dimensions
Performance
Materials
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6212-ZNB/C3 Bearing Product Overview & Core Advantages
The 6212-ZNB/C3 is a single row deep groove ball bearing designed for robust performance in demanding industrial applications. This metric bearing excels in handling primarily radial loads and offers high operational reliability. Its key advantages include a C3 radial internal clearance, which accommodates thermal expansion in applications with elevated operating temperatures or heavy loads, and shielded construction (Z) that provides effective protection against contaminants while maintaining low running torque. Manufactured to ABEC 1 | ISO P0 tolerance standards, it delivers consistent precision and is ideal for applications requiring dependable performance without the need for frequent re-lubrication.
6212-ZNB/C3 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Advantage |
|---|---|---|
| 6212 | Standard deep groove ball bearing designation; 60mm bore, 110mm OD, 22mm width. | Standardized dimensions for easy interchangeability. |
| Z | One side shielded. | Protects bearing interior from large particulate contaminants. |
| N | Snap ring groove on the outer ring. | Facilitates secure axial location within a housing, simplifying assembly. |
| B | 40° contact angle (if applicable per manufacturer standards; otherwise denotes a specific internal design variant). | Can support increased axial loads in one direction compared to standard deep groove bearings. |
| C3 | Greater than normal radial internal clearance. | Prevents pre-loading and accommodates shaft expansion under high-speed or high-temperature conditions. |
6212-ZNB/C3 Bearing Structural Features & Performance Benefits
The performance of the 6212-ZNB/C3 is derived from its specific construction and material selection. The single row design with deep groove raceways is optimized for high radial load capacity (Dynamic: 1178 lbf, Static: 8138 lbf). The use of chrome steel for all critical components (rings, balls, cage) ensures high strength, durability, and resistance to wear. The inclusion of a snap ring groove (N) enhances design flexibility by providing a positive locking mechanism in the housing. The C3 clearance is a critical feature for applications prone to thermal expansion, ensuring stable operation and preventing binding. With a limiting speed of 5,600 rpm and an operating temperature range of -30°C to 120°C, this bearing offers versatile performance across a wide spectrum of industrial environments.
6212-ZNB/C3 Bearing Typical Application Areas
The 6212-ZNB/C3 is engineered for reliability in a variety of machinery and equipment, including:
- Electric Motors and Generators
- Industrial Gearboxes
- Material Handling Conveyors
- Agricultural Machinery
- Pumps and Fans
Its combination of shielded protection, snap ring groove for secure mounting, and expanded C3 clearance makes it a preferred choice for applications where operational stability, ease of installation, and contamination resistance are paramount.
