SKF 61902-2RS1 High-Performance Sealed Ball Bearing

The SKF 61902-2RS1 is a high-quality thin section deep groove ball bearing that engineers primarily select for applications with limited radial space. Firstly, this model offers a compact design while maintaining the high rotational accuracy and durability expected from the SKF brand. It belongs to the single-row deep groove category, which provides versatile performance for lightweight industrial components and precision machinery.

Technical Dimensions and Reliable Performance

In addition to its space-saving geometry, the 61902-2RS1 features very precise physical dimensions. It has a bore diameter of 15 mm, an outside diameter of 28 mm, and a width of 7 mm. Regarding its strength, the bearing offers a basic dynamic load rating of 4.36 kN and a basic static load rating of 2.24 kN. Furthermore, it reaches an impressive limiting speed of 16,000 r/min. Therefore, this model serves as an ideal solution for machinery where weight reduction and size remain critical factors for efficiency.

Key Features and 2RS1 Contact Sealing

Specifically, the “2RS1” designation indicates that the bearing features sheet-steel reinforced contact seals on both sides. These seals provide a much higher level of protection against moisture, dust, and environmental contamination compared to standard metal shields. Because the seals maintain direct contact with the inner ring, they effectively keep the high-quality grease inside the bearing. Moreover, the use of premium bearing steel and a sheet metal cage ensures excellent structural integrity even under continuous operation at high speeds.

Additionally, this bearing features a cylindrical bore type and standard radial internal clearance (CN). The design does not include filling slots or a locating feature on the outer ring, which keeps the total mass at a lightweight 0.0159 kg. As a result, the design minimizes rotational friction and supports higher energy efficiency in precision systems.

Common Industrial and Commercial Applications

Because of its unique size and durable sealed design, the SKF 61902-2RS1 is essential in many specialized sectors. For example, robotics, precision tools, medical devices, and high-end bicycle hubs frequently rely on this specific thin-section model. Finally, the pre-greased and sealed configuration supports smooth, maintenance-free movement throughout the entire lifecycle of the component. This makes it a top-tier choice for designers who prioritize space efficiency and long-term protection against the elements.

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