The 6308 2RS deep groove ball bearing is a robust and reliable bearing solution designed for industrial applications that demand stable performance, effective sealing, and long service life. As a single-row deep groove ball bearing with double rubber seals (2RS), this bearing is ideal for environments exposed to dust, moisture, and moderate contamination.
The 6308 2RS bearing is engineered to accommodate high radial loads along with moderate axial loads in both directions, making it a versatile and dependable choice for a wide range of industrial machinery.
Precision Engineering and Sealed Bearing Design
The 6308 2RS bearing is manufactured with precision-ground inner and outer rings and high-quality steel balls to ensure smooth rotation, low friction, and reduced vibration. Its deep groove raceway geometry allows even load distribution across the rolling elements, minimizing internal stress, wear, and heat generation during operation.
The bearing is equipped with double rubber seals on both sides, which securely retain lubricant inside the bearing while preventing the ingress of dust, dirt, and moisture. This sealed design significantly reduces maintenance requirements and extends bearing service life, especially in continuous-duty applications.
Technical Specifications of 6308 2RS Ball Bearing
The 6308 2RS deep groove ball bearing has an inner diameter of 40 mm, an outer diameter of 90 mm, and a width of 23 mm. With an approximate weight of 0.63 kg, it provides a strong and durable construction suitable for medium to heavy-duty industrial use.
In terms of load capacity, the bearing offers a dynamic load rating of 41.2 kN and a static load rating of 19.1 kN, enabling reliable operation under substantial radial loads while maintaining stable axial load support.
Regarding speed capability, the 6308 2RS bearing can operate at speeds of up to 8,200 revolutions per minute when grease-lubricated and up to 9,900 revolutions per minute when oil-lubricated. Although rubber seals slightly reduce maximum operating speed compared to open or shielded bearings, they provide superior protection and longer lubrication life.
Typical Applications
Thanks to its sealed design, high load capacity, and stable performance, the 6308 2RS deep groove ball bearing is widely used in various industrial and mechanical applications, including:
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Electric motors and industrial generators
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Gearboxes and transmission systems
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Industrial pumps, fans, and compressors
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Conveyor systems and material handling equipment
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Agricultural and construction machinery
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Heavy-duty industrial equipment
Key Advantages of 6308 2RS Bearing
The 6308 2RS ball bearing offers several important advantages that make it a preferred choice in demanding industrial environments. These advantages include excellent protection against dust and moisture due to double rubber seals, smooth and low-friction operation, reduced maintenance requirements, reliable radial and axial load-carrying capability, and long service life under continuous operating conditions. Its standardized dimensions ensure easy installation and global interchangeability.
Conclusion
The 6308 2RS deep groove ball bearing is a durable, efficient, and cost-effective solution for applications that require sealed protection, high load capacity, and long-term reliability. With its precise dimensions, strong load ratings, and effective sealing system, it delivers consistent performance in demanding industrial environments. Whether used in new equipment or as a replacement component, the 6308 2RS bearing ensures dependable operation and long-term value.