6211-2Z/C3 GJN
6000, 6200 & 6300 Series Metric Standard Ball Bearings
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6211-2Z/C3 GJN Bearing Product Overview & Core Advantages
The 6211-2Z/C3 is a single row deep groove ball bearing designed for robust performance in demanding applications. This shielded bearing excels at handling radial loads and moderate axial loads in both directions. Its key advantages include a generous C3 radial internal clearance for thermal expansion management, integrated shields (2Z) for contaminant protection, and a high limiting speed of 6,300 rpm. Manufactured to ABEC 1 | ISO P0 tolerance standards, it offers reliable, maintenance-free operation across a wide temperature range, making it an ideal choice for general industrial machinery requiring long service life and consistent performance.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 6211 | Standard deep groove ball bearing series with 55mm bore, 100mm OD. |
| 2Z | Bearing with steel shields on both sides. Provides effective protection against contaminants while allowing high-speed operation. |
| C3 | Greater than normal radial internal clearance. Ideal for applications with thermal expansion, such as in electric motors or where shaft and housing fits create interference. |
6211-2Z/C3 GJN Bearing Structural Features & Performance Benefits
- Optimized Load Capacity: The single row deep groove raceway geometry enables efficient handling of high radial loads (9,757 lbf dynamic / 6,609 lbf static) and moderate bidirectional axial loads.
- High-Speed Capability: The chrome steel cage and precision-ground components contribute to a high limiting speed of 6,300 rpm, suitable for a wide range of industrial drives.
- Contamination Resistance: The non-contact steel shields (2Z) effectively seal the bearing, protecting the internal components from dust and debris without significant friction increase.
- Thermal Stability: The C3 internal clearance accommodates differential thermal expansion between the shaft and housing, preventing premature failure due to preload under operating temperatures.
- Material Integrity: Constructed entirely from chrome steel for rings, balls, and cage, ensuring high hardness, wear resistance, and dimensional stability.
6211-2Z/C3 GJN Bearing Typical Application Areas
- Electric Motors (particularly where C3 clearance is specified)
- Industrial Gearboxes and Power Transmission Systems
- Material Handling Equipment (conveyors, pulleys)
- Agricultural Machinery (PTO shafts, implement drives)
- Pumps and Fans
- General Industrial Machinery requiring reliable, shielded bearings
