3211 A-2RS1
Double Row Angular Contact Ball Bearings
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3211 A-2RS1 Bearing Product Overview & Core Advantages
The 3211 A-2RS1 is a double row angular contact ball bearing designed for applications requiring high rigidity and the ability to handle combined loads. This precision bearing efficiently supports substantial radial loads and bidirectional axial loads simultaneously, making it ideal for high-reliability machinery. Its compact design, featuring integrated seals and pre-lubrication, ensures long service life with minimal maintenance, positioning it as a robust solution for demanding industrial environments.
3211 A-2RS1 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 3211 | Basic bearing designation indicating a double row angular contact ball bearing with a 55 mm bore diameter. |
| A | Denotes a specific internal design with a 30° contact angle, optimized for carrying significant axial loads. |
| 2RS1 | Indicates the bearing is fitted with two rubber contact seals (RS1) on both sides, providing excellent protection against contamination and retaining lubricant. |
3211 A-2RS1 Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The double row design provides superior radial and axial stiffness, enabling the bearing to handle combined loads effectively. The optimized internal geometry and 30° contact angle significantly enhance its bidirectional axial load capacity.
Sealed & Lubricated for Longevity: Equipped with two RS1 rubber contact seals, the bearing is effectively shielded from contaminants like dust and moisture. It comes pre-lubricated with high-quality grease, suitable for a temperature range of -30°C to 110°C, ensuring reliable performance and a long, maintenance-free service life.
Precision & Speed Performance: Manufactured to a P6 (ABEC-3) tolerance class, this bearing guarantees high running accuracy. The use of a stainless steel cage contributes to smooth operation and stability at the specified limiting speed of 4,500 rpm.
3211 A-2RS1 Bearing Typical Application Areas
The 3211 A-2RS1 is widely used in various industrial sectors requiring robust and reliable rotational support. Key applications include:
- Industrial Gearboxes and Transmissions
- Pumps and Compressors
- Material Handling Equipment (e.g., conveyor pulleys)
- Agricultural Machinery
- Electric Motors requiring sealed and pre-lubricated units
