6021-2RS1/C3
6000, 6200 & 6300 Series Metric Standard Ball Bearings
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6021-2RS1/C3 Bearing Product Overview & Core Advantages
The 6021-2RS1/C3 is a single row deep groove ball bearing designed for exceptional performance in demanding industrial applications. This metric bearing features integral contact seals (2RS1) for superior contamination protection and is manufactured with a C3 radial internal clearance, making it ideally suited for applications with elevated operating temperatures or where interference fits are used. Its robust construction from chrome steel ensures high durability and reliable radial load capacity, providing a compact and efficient solution for a wide range of machinery.
6021-2RS1/C3 Bearing Model Code Explained, Specifications & Naming Convention
| Model Segment | Interpretation | Technical Significance |
|---|---|---|
| 6021 | Basic Bearing Number | Denotes a single row deep groove ball bearing with a 105 mm bore, 160 mm OD, and 26 mm width. |
| 2RS1 | Seal Type | Indicates the bearing is fitted with rubber contact seals on both sides. This provides excellent protection against contaminants and retains lubricant. |
| C3 | Radial Internal Clearance | Specifies a greater than normal radial internal clearance. This is optimal for applications with thermal expansion or heavy interference fits, preventing premature failure. |
6021-2RS1/C3 Bearing Structural Features & Performance Benefits
- Robust Sealed Design: The 2RS1 rubber contact seals effectively shield the internal components from dust, moisture, and other contaminants, significantly extending bearing service life in harsh environments and making it a maintenance-free solution for many applications.
- Optimized Internal Clearance: The C3 clearance group accommodates shaft and housing expansions under high-speed or high-temperature conditions, ensuring stable operation and preventing excessive preload that can lead to overheating and reduced limiting speed.
- High Load Capacity & Precision: Manufactured from high-grade chrome steel for both rings and balls, this bearing delivers a high radial dynamic load rating of 16,254 lbf. Built to ABEC 1 | ISO P0 tolerance, it guarantees consistent performance and running accuracy for general industrial use.
- Versatile Operating Range: With a broad temperature range from -30°C to 120°C, this bearing is suitable for various operational environments without performance degradation.
6021-2RS1/C3 Bearing Typical Application Areas
The 6021-2RS1/C3 is engineered for reliability in a diverse set of industrial sectors. Key applications include:
- Electric Motors and Generators
- Industrial Gearboxes and Transmissions
- Material Handling Equipment (Conveyors, Pulleys)
- Agricultural Machinery
- General Industrial Machinery requiring robust, sealed bearings
