6308-RSJEM
6000, 6200 & 6300 Series Metric Standard Ball Bearings
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6308-RSJEM Bearing Product Overview & Core Advantages
The 6308-RSJEM is a high-performance single row deep groove ball bearing designed for reliable operation in demanding industrial applications. Its key advantage lies in its sealed construction, which effectively protects against contamination and retains lubrication, ensuring long service life and minimal maintenance. This bearing is engineered to handle primarily radial loads and is characterized by its high limiting speed and robust construction using chrome steel for all critical components. It is an ideal solution for applications requiring a balance of performance, durability, and cost-effectiveness.
6308-RSJEM Bearing Model Code Explained, Specifications & Naming Convention
- 6308: Basic model number indicating a single row deep groove ball bearing with a 40mm bore, 90mm OD, and 23mm width.
- RS: Signifies the presence of a contact rubber seal on one side of the bearing. The "J" in JEM indicates a second, identical seal on the opposite side, providing comprehensive protection.
- JEM: This suffix combination confirms the double-sealed (2RS) design. The "EM" may refer to a specific seal or cage variant optimized for performance, contributing to the bearing's high limiting speed.
6308-RSJEM Bearing Structural Features & Performance Benefits
Sealed for Protection & Longevity: The double-contact rubber seals (RS) are a critical feature, effectively shielding the internal raceways and balls from dust, moisture, and other contaminants. This design also retains lubricant, making the bearing suitable for applications where re-lubrication is difficult.
Robust Load Capacity: Manufactured from high-grade chrome steel, this bearing offers a substantial radial dynamic load rating of 915 lbf and a radial static load rating of 5395 lbf, ensuring reliable performance under significant radial stresses.
Optimized for High-Speed Operation: The combination of a precision chrome steel cage and optimized internal geometry allows for a high limiting speed of 7,500 rpm, making it suitable for a wide range of high-speed machinery.
Precision & Consistency: Manufactured to ABEC 1 | ISO P0 tolerance class and standard CN radial internal clearance, this bearing provides consistent, high-quality performance for general industrial applications.
6308-RSJEM Bearing Typical Application Areas
The 6308-RSJEM is versatile and finds use in numerous sectors, including:
- Electric Motors and Gearboxes
- Industrial Pumps and Fans
- Material Handling Equipment (e.g., conveyor systems)
- Agricultural Machinery
- General Industrial Machinery requiring reliable, sealed ball bearings
