SKF 629-2RSH/C3 Rubber Sealed Single Row Deep Groove Ball Bearing 9x26x8mm

The SKF 629-2RSH/C3 sealed deep groove ball bearing is engineered for 9mm shafts in compact equipment where contamination protection and internal running clearance are important. Its 26mm outside diameter and 8mm width provide a relatively substantial cross-section for a miniature bearing. SKF Explorer construction uses deep raceway grooves to accommodate predominantly radial loads together with axial forces in either direction, within the bearing's rated limits. The basic dynamic load rating is 4.75kN, while the basic static load rating is 1.96kN. These values help engineers assess bearing life and suitability for applications involving changing loads or intermittent operation.

The defining feature of this variant is its C3 radial internal clearance, which is greater than the normal clearance supplied with the standard 629-2RSH. Increased initial clearance can help compensate for the reduction caused by interference fits or thermal expansion, although it should be selected according to the actual operating conditions rather than assumed to be universally better. The 2RSH rubber contact seals protect both sides of the bearing, retaining factory grease and restricting the ingress of dirt, moisture and fine particles. SKF specifies a limiting speed of 19,000rpm, with continuous operating suitability depending on load, temperature, lubrication and seal friction. A sheet metal cage separates the rolling elements. For replacement work, confirm the complete 629-2RSH/C3 designation to avoid substituting a normal-clearance bearing in an application requiring C3.

Typical Applications:

Small electric motors with specified C3 clearance

Compact industrial fans and ventilation units

Miniature pumps and circulation equipment

Precision mechanical drives with interference-fitted shafts

Enclosed rotating assemblies subject to temperature changes