SKF 61809-2RS1 Rubber Sealed Single Row Deep Groove Ball Bearing 45x58x7mm

The SKF 61809-2RS1 sealed thin section deep groove ball bearing is engineered for compact machinery where conventional bearing dimensions would occupy excessive space around the shaft. Its extremely slender 618 series geometry leaves only 6.5mm between the bore and outside diameter on each side, allowing designers to minimise housing dimensions. The single row ball arrangement accommodates radial loads and limited axial forces in either direction, subject to its load capacity. SKF catalogue specifications give a basic dynamic load rating of 6.63kN, a basic static load rating of 6.1kN and a limiting speed of 6,700rpm. These values make careful load assessment essential, particularly where shock loading or substantial belt tension could exceed the capabilities of such a thin bearing.

The 2RS1 double rubber contact seals retain factory grease and help protect the raceways from dust, dirt and moisture. This is valuable where the surrounding assembly cannot accommodate an external lubrication system. Contact seals introduce additional running resistance compared with open or non-contact sealed alternatives, so speed and operating temperature must be considered together. Normal radial internal clearance requires accurately controlled mounting fits. The exceptionally thin rings are susceptible to distortion from excessive interference or uneven housing support, making correct seating surfaces and mounting methods especially important. This bearing should be selected for its compact geometry and verified load suitability, rather than as a direct substitute for a wider, higher-capacity bearing.

Typical Applications:

Compact robotic and automation mechanisms

Precision rotary positioning equipment

Lightly loaded industrial shaft assemblies

Compact handling and indexing machinery

Specialised equipment with ultra-thin bearing housings