The SKF 629-2RSH is an SKF Explorer miniature deep groove ball bearing designed for compact rotating equipment requiring a 9mm shaft bore and effective contamination protection. Measuring 9 x 26 x 8mm, it offers a slightly larger bearing arrangement than the 609 series, providing additional load capacity where housing space permits. Its two RSH rubber contact seals retain factory grease and help exclude dust, moisture and debris. With normal radial internal clearance and a sheet metal cage, it is suitable for small electric motors, precision drives, automation equipment and compact mechanical assemblies.
The SKF 629-2RSH sealed miniature deep groove ball bearing provides rotational support for 9mm shafts in machinery where compact dimensions must be balanced against operating loads. Its 26mm outside diameter and 8mm width give it a more substantial cross-section than the 609 bearing, making the available housing dimensions an important selection factor. The single row deep groove raceways accommodate predominantly radial loads alongside limited axial forces in either direction. SKF Explorer specifications give a basic dynamic load rating of 4.75kN and a basic static load rating of 1.96kN. These values are useful when assessing bearing fatigue life, stationary loading and the suitability of small motor or transmission assemblies.
The 2RSH rubber contact seals provide contact sealing on both sides, retaining factory-applied grease and helping protect the rolling elements from fine dust, dirt and moisture. This is especially valuable in small mechanisms where regular relubrication is impractical. SKF specifies a limiting speed of 19,000rpm for this configuration, although continuous operating suitability also depends on temperature, load and friction generated by the seals. Normal (CN) radial internal clearance distinguishes this bearing from the 629-2RSH/C3 version, which provides greater initial clearance. During replacement, confirm the complete suffix, dimensions and required clearance. Appropriate shaft and housing fits, together with mounting forces applied to the correct ring, help avoid damage to the miniature raceways.
Typical Applications:
Small electric motors and compact drive units
Precision automation and positioning mechanisms
Miniature conveyor rollers and guide wheels
Model engineering and mechanical assemblies
Compact industrial fans and instrument drives
