The SKF 6211-2RS1/C3 is an SKF Explorer single row deep groove ball bearing designed for industrial machinery requiring a 55mm shaft bore and increased radial internal clearance. Measuring 55 x 100 x 21mm, it combines a durable 62 series construction with rubber contact seals on both sides to retain factory grease and help exclude contaminants. The C3 clearance provides greater internal play than a standard-clearance 6211 bearing, helping accommodate clearance reduction from interference fits and thermal expansion. Ideal for suitably specified electric motors, pumps, conveyors and industrial drive systems.
The SKF 6211-2RS1/C3 sealed deep groove ball bearing offers dependable rotational support in machinery requiring a 55mm bore, 100mm outside diameter and 21mm width. Its single row deep groove construction supports substantial radial loads while accommodating axial forces in either direction within its rated limits. SKF specifications give a basic dynamic load rating of 46.2kN and a basic static load rating of 29kN, making these figures useful when calculating bearing life and checking operating loads. A sheet metal cage separates the rolling elements, while the SKF Explorer design provides a precision-manufactured bearing for demanding industrial applications.
The defining feature of this version is its C3 radial internal clearance, which is greater than normal (CN) clearance. This additional initial clearance can help compensate for the reduction caused by tight shaft fits, temperature differences between the bearing rings and thermal expansion during operation. However, C3 is not automatically preferable for every application; the required operating clearance must be established from the actual mounting and temperature conditions. The 2RS1 contact seals on both sides retain factory grease and help restrict contamination, reducing routine relubrication requirements. SKF lists a limiting speed of 4,300rpm for this sealed bearing, with continuous suitability also dependent on loading, temperature and seal friction. When replacing a bearing, confirm the complete 6211-2RS1/C3 designation, as the standard-clearance 6211-2RS1 has identical dimensions but different internal clearance.
Typical Applications:
Industrial electric motors requiring C3 clearance
Centrifugal pumps and circulation equipment
Conveyor drive shafts and pulley assemblies
Industrial gearboxes and power transmission systems
Ventilation fans and rotating machinery with specified thermal clearance
