6212-2Z/C3GJN
6000, 6200 & 6300 Series Metric Standard Ball Bearings
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Basic Information
Main Dimensions
Performance
Materials
Environment & Compliance
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6212-2Z/C3GJN Bearing Product Overview & Core Advantages
The 6212-2Z/C3GJN is a single row deep groove ball bearing designed for robust performance and reliable operation. Its key characteristic is the combination of shielded protection (2Z) and a C3 radial internal clearance, making it suitable for applications with thermal expansion or where mounting creates interference fits. This configuration offers excellent capability for handling radial loads and moderate axial loads in both directions. Manufactured to ABEC 1 | ISO P0 tolerance standards, it provides a cost-effective solution for general industrial applications requiring dependable performance and extended service life.
Model Code Breakdown
- 6212: Basic model number for a single row deep groove ball bearing with a 60mm bore.
- -2Z: Signifies that the bearing is shielded on both sides. This provides effective protection against contaminant ingress while allowing for higher rotational speeds compared to contact seals.
- /C3: Indicates a greater than normal radial internal clearance. This is advantageous in applications where thermal expansion of the shaft and housing is expected, or where tight interference fits are used, preventing excessive preload and potential bearing failure.
- GJN: This suffix is not a standard universal code but is often used by specific manufacturers to denote a particular heat stabilization treatment for the bearing rings, allowing for a stable operating temperature range up to 120°C.
6212-2Z/C3GJN Bearing Structural Features & Performance Benefits
Robust Construction for Radial Loads: The single row deep groove raceway geometry is optimized to carry significant radial loads efficiently. The use of high-grade chrome steel for all components ensures high durability and resistance to wear.
Optimized for Operational Stability: The C3 clearance is a critical feature that accommodates dimensional changes due to heat or press-fitting, preventing binding and ensuring smooth operation under varying conditions. This contributes to the bearing's high limiting speed of 5,600 rpm.
Enhanced Contamination Protection: The non-contact shields (2Z) protect the internal bearing components from dust and larger particles, helping to maintain lubricant integrity and extend service intervals in clean to moderately contaminated environments.
High-Temperature Capability: The GJN heat stabilization ensures dimensional stability across the specified temperature range (-30°C to +120°C), making it suitable for applications that generate operational heat.
6212-2Z/C3GJN Bearing Typical Application Areas
This bearing's combination of shielded protection, C3 clearance, and robust construction makes it a versatile component for various industrial sectors:
- Electric Motors and Generators
- Industrial Gearboxes
- Material Handling Equipment (e.g., conveyor pulleys)
- Agricultural Machinery
- Ventilation and Fan Systems
