The SKF 61813-2RS1 sealed thin section deep groove ball bearing provides support for 65mm rotating shafts where conventional bearing series would occupy excessive radial or axial space. Its 618 series design has a radial cross-section of just 10mm, making it suitable for compact mechanisms and lightweight rotating assemblies. The single row ball arrangement carries radial loads and moderate axial forces in either direction, subject to the bearing's load capacity. SKF specifies a basic dynamic load rating of 12.4kN, a basic static load rating of 12.7kN and a limiting speed of 4,500rpm. These figures help distinguish this thin-section design from wider, higher-capacity bearings when evaluating service life and operating suitability.
The 2RS1 rubber contact seals retain factory grease and help restrict contaminants from reaching the rolling elements, reducing the need for routine relubrication. Contact seals create additional friction compared with an open bearing, so running temperature and speed remain important considerations. Normal radial internal clearance requires accurately controlled shaft and housing fits. Because the rings are thin, excessive interference or distortion during mounting can reduce operating clearance and affect performance. Suitable mounting tools, correctly machined seating surfaces and careful alignment are particularly important when installing this bearing in precision or space-restricted equipment.
Typical Applications:
Compact rotary positioning mechanisms
Space-restricted automation assemblies
Lightly loaded industrial rotating shafts
Precision handling and indexing equipment
Specialised machinery with thin bearing housings
