SKF 61812-2RS1 Rubber Sealed Single Row Deep Groove Ball Bearing 60x78x10mm

The SKF 61812-2RS1 sealed thin section deep groove ball bearing is intended for machinery where a 60mm rotating shaft must fit within a housing that offers minimal space for bearing support. Its 618 series geometry is substantially narrower than conventional 60, 62 and 63 series designs, helping equipment designers minimise overall assembly dimensions. The single row ball arrangement supports radial loading and moderate axial forces in either direction, within its specified capacity. SKF catalogue data gives a basic dynamic load rating of 11.9kN, a basic static load rating of 11.4kN and a limiting speed of 4,800rpm. These figures are particularly relevant when assessing compact mechanisms with relatively light loading rather than heavily loaded transmission shafts.

The 2RS1 double rubber contact seals retain factory grease and help restrict dirt and moisture from entering the bearing, making separate relubrication arrangements less necessary. Contact seals generate additional running friction compared with open bearings, so operating temperature and continuous speed should be evaluated together. Normal radial internal clearance requires particular attention to mounting conditions because the thin bearing rings may be affected by excessive interference fits or distorted housings. Carefully machined seats, correctly aligned components and installation methods that avoid transmitting mounting forces through the balls are important for maintaining satisfactory running performance.

Typical Applications:

Compact rotary positioning mechanisms

Space-restricted automation assemblies

Lightly loaded industrial rotating shafts

Precision handling and indexing equipment

Specialised machinery with narrow bearing housings