SKF 627-2RSH Rubber Sealed Single Row Deep Groove Ball Bearing 7x22x7mm

The SKF 627-2RSH sealed miniature deep groove ball bearing provides dependable rotational support for small shafts operating under radial and combined loading conditions. Its 7mm bore, 22mm outside diameter and 7mm width make it suitable for compact assemblies where the smaller 607 bearing may not offer sufficient load capacity. The single row deep groove raceways accommodate predominantly radial loads alongside axial forces in either direction, within the bearing's rated limits. SKF specifies a basic dynamic load rating of 3.45kN and a basic static load rating of 1.37kN. These ratings help engineers assess expected fatigue life and loading limits when designing or maintaining miniature motor, pulley and drive assemblies.

The 2RSH rubber contact seals provide sealing on both sides, helping retain the factory-applied grease while restricting the entry of dust, moisture and other contaminants. This makes the bearing particularly useful in compact mechanisms where regular relubrication is impractical. SKF lists a limiting speed of 22,000rpm for the sealed configuration, although actual operating suitability depends on load, temperature and seal friction. The bearing uses normal (CN) radial internal clearance and a sheet metal cage, with an approximate mass of 13g. For replacement purposes, distinguish the 627-2RSH from the 627-2RSH/C3, which has increased internal clearance, and from lower-friction RSL-sealed variants. Correct shaft and housing fits are essential to preserve operating clearance and avoid premature damage during mounting.

Typical Applications:

Small electric motors and compact drive units

Miniature conveyor rollers and guide wheels

Precision automation and positioning assemblies

Compact pulleys and belt transmission systems

Light-duty industrial fans and mechanical instruments