The SKF 61807-2RS1 sealed thin section deep groove ball bearing is intended for rotating equipment with limited space between the shaft and surrounding housing. Its 618 series construction provides a particularly shallow bearing arrangement, allowing designers to support a relatively large bore without the dimensions of a conventional deep groove ball bearing. The single row ball design accommodates radial loads and limited axial forces in both directions. SKF specifies a basic dynamic load rating of 4.36kN, a basic static load rating of 3.35kN and a limiting speed of 8,500rpm. These figures should be assessed against the application's operating loads, particularly where shock loading, belt tension or frequent acceleration may affect bearing life.
The 2RS1 rubber contact seals retain factory grease and help restrict the entry of dust and moisture, making the bearing suitable for compact mechanisms without a separate lubrication system. The contact seals introduce additional friction compared with an open bearing, so rotational speed and temperature remain important considerations. Normal radial internal clearance requires particular care during installation: the thin bearing rings can be affected by excessive interference fits, uneven housing support or incorrect mounting forces. Accurate seating surfaces and appropriate installation tools are essential. This design is best selected where reduced bearing dimensions are a priority and the calculated loads remain within its capabilities.
Typical Applications:
Compact rotary positioning assemblies
Lightly loaded automation mechanisms
Precision indexing and handling equipment
Small industrial rotating shaft supports
Specialised machinery with narrow bearing housings