6311-2RS1
6000, 6200 & 6300 Series Metric Standard Ball Bearings
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6311-2RS1 Bearing Product Overview & Core Advantages
The 6311-2RS1 is a single row deep groove ball bearing designed for exceptional performance in demanding applications. Engineered to primarily handle radial loads, its robust construction ensures high reliability and long service life. A key feature is its integrated sealing (2RS1), which effectively protects against contamination and retains lubricant, making it suitable for environments where maintenance access is difficult. Manufactured to a P6 tolerance class, this bearing offers high precision and consistent operation, ideal for applications requiring smooth running and accurate positioning.
6311-2RS1 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Interpretation | Technical Significance |
|---|---|---|
| 6311 | Basic Bearing Number | Denotes a metric, single row deep groove ball bearing with a 55mm bore, 120mm OD, and 29mm width. |
| 2RS1 | Sealing Suffix | Indicates the bearing is sealed on both sides with NBR contact seals. This provides superior protection against dust, moisture, and other contaminants, while also retaining the factory-fill grease. |
6311-2RS1 Bearing Structural Features & Performance Benefits
- High Load Capacity & Durability: The single row deep groove raceway and high-grade chrome steel construction provide a high radial dynamic load rating of 16,658 lbf and a radial static load rating of 10,116 lbf, ensuring reliable performance under significant stress.
- Sealed & Pre-Lubricated Design: The 2RS1 seals create an effective barrier, significantly extending bearing life by preventing lubricant washout and ingress of abrasive particles. Pre-lubricated with grease, it is ready for immediate installation and offers long-term, maintenance-free operation in many applications.
- Precision & Stability: Manufactured to P6 tolerance with a standard (CN) radial internal clearance, this bearing ensures precise running accuracy, reduced vibration, and consistent performance, which is critical for high-speed and precision machinery.
- Robust Cage & Material: The stainless steel cage provides excellent strength and corrosion resistance, contributing to the bearing's high limiting speed and overall durability in challenging environments.
6311-2RS1 Bearing Typical Application Areas
The 6311-2RS1 is versatile and finds use across numerous industries due to its sealed and robust design. Common applications include:
- Electric Motors and Generators
- Industrial Gearboxes and Power Transmission Systems
- Material Handling Equipment (e.g., conveyor pulleys)
- Agricultural Machinery
- Automotive Components (e.g., alternators, idlers)
- General Industrial Machinery requiring reliable, sealed bearing solutions
