6212-2RS1/C3 GJN
6000, 6200 & 6300 Series Metric Standard Ball Bearings
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6212-2RS1/C3 GJN Bearing Product Overview & Core Advantages
The 6212-2RS1/C3 GJN is a metric single row deep groove ball bearing engineered for robust performance and reliability. Its sealed construction provides superior protection against contaminants, making it ideal for demanding industrial environments. A key feature is its C3 radial internal clearance, which accommodates thermal expansion in applications with high operational temperatures or heavy loads, ensuring stable performance and extended service life. This bearing is designed to handle primarily radial loads and is characterized by its high precision ABEC 1 (ISO P0) tolerance class.
6212-2RS1/C3 GJN Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 6212 | Basic bearing designation: 60 mm bore, 110 mm OD, 22 mm width. |
| 2RS1 | Features contact seals on both sides. The RS1 seal provides effective protection against dust and moisture ingress while retaining lubricant. |
| C3 | Specifies a greater than normal radial internal clearance. This is critical for applications with significant temperature variations or where fits cause a reduction in clearance. |
| GJN | Indicates the bearing is pre-lubricated with a specific polyurea grease. This grease offers excellent performance over a wide temperature range (-30°C to +120°C) and contributes to the bearing's low maintenance and long-life characteristics. |
6212-2RS1/C3 GJN Bearing Structural Features & Performance Benefits
- Optimized Sealing & Lubrication: The combination of 2RS1 contact seals and GJN grease creates a highly effective, self-contained system. This provides long-term, maintenance-free operation by shielding the rolling elements from contamination and ensuring consistent lubrication.
- Robust Load Capacity: Manufactured from high-grade chrome steel for both rings and balls, this bearing delivers a high dynamic load rating of 1178 lbf and an exceptional static load rating of 8138 lbf, providing durability under substantial radial loads.
- Thermal Stability: The C3 clearance is a critical design feature that prevents pre-loading and potential seizure in applications where operational heat causes expansion of the inner ring and shaft.
- High-Speed Capability: With a limiting speed of 5,600 rpm, this bearing is suitable for a wide range of high-speed applications, supported by its precision construction and effective grease lubrication.
6212-2RS1/C3 GJN Bearing Typical Application Areas
The 6212-2RS1/C3 GJN is a versatile component found in numerous industries due to its sealed and pre-lubricated design. Common applications include:
- Electric Motors and Gearboxes
- Industrial Fans and Blowers
- Material Handling Equipment (e.g., conveyor rollers)
- Agricultural Machinery
- Pumps and Compressors
