6212-ZNR/C3
6200 Series Snap Ring Bearings
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Basic Information
Main Dimensions
Outer Ring Dimensions
Performance
Materials
Environment & Compliance
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6212-ZNR/C3 Bearing Product Overview & Core Advantages
The 6212-ZNR/C3 is a single row deep groove ball bearing engineered for robust performance in demanding applications. Its key advantage lies in the snap ring groove on the outer ring, which simplifies axial location and reduces housing design complexity and costs. This bearing is designed to primarily handle radial loads and features shielded construction for contaminant protection. The C3 radial internal clearance makes it suitable for applications with thermal expansion or where interference fits are used, ensuring reliable operation across a wide temperature range. Its ABEC 1 (ISO P0) tolerance class offers a solid balance of precision and value for general industrial use.
6212-ZNR/C3 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Significance |
|---|---|---|
| 6212 | Basic Bearing Series & Size | Denotes a single row deep groove ball bearing with a 60mm bore, 110mm OD, and 22mm width. |
| Z | Shield on One Side | A steel shield protects the bearing interior from large contaminants while allowing for higher limiting speeds compared to contact seals. |
| NR | Snap Ring Groove | Indicates a groove on the outer ring for a snap ring, providing a positive axial location and simplifying housing design. |
| C3 | Radial Internal Clearance | Specifies a clearance greater than normal (C0), accommodating thermal expansion or interference fits, preventing premature failure due to preload. |
6212-ZNR/C3 Bearing Structural Features & Performance Benefits
- Simplified Axial Location: The integrated snap ring groove eliminates the need for complex shoulder machining in the housing, reducing assembly time and manufacturing costs.
- Effective Contaminant Protection: The non-contact shield on one side helps retain lubrication and exclude larger particulates, enhancing bearing life in moderately dirty environments without significantly impacting speed capability.
- Optimized for Interference Fits: The C3 clearance is engineered to compensate for the reduction in internal clearance caused by press-fitting the bearing onto a shaft or into a housing, maintaining optimal running performance.
- Robust Load Capacity: Manufactured from high-grade chrome steel for both rings and balls, this bearing delivers a reliable radial dynamic load rating of 1178 lbf and a radial static load rating of 8138 lbf, suitable for a variety of industrial loads.
6212-ZNR/C3 Bearing Typical Application Areas
- Electric Motors and Gearboxes
- Industrial Fans and Blowers
- Material Handling Conveyors
- Agricultural Machinery
- Pumps and Compressors
