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The SKF 6226-2Z double-shielded deep groove ball bearing is engineered for larger rotating assemblies where a 130mm shaft requires a robust bearing without the greater outside diameter of a heavier 63 series design. Its 230mm outside diameter and 40mm width provide substantial radial support while allowing axial loads to be accommodated in both directions, within the bearing's rated limits. SKF specifies a 156kN basic dynamic load rating and 132kN basic static load rating, making accurate load calculations essential when selecting it for continuous industrial duty. The single row construction uses precision-ground raceways and a sheet metal cage to maintain ball spacing during rotation. Unlike a self-aligning bearing, it requires suitable shaft and housing alignment to prevent excessive internal loading.
The 2Z suffix identifies a metal shield on each side, rather than the contacting rubber seals found on the 6226-2RS1. The shields help retain lubricant and limit the entry of larger dirt particles while providing lower running friction than contact seals. This makes the bearing particularly relevant to protected machinery where speed and lubricant retention are important, but where severe water or fine-dust exposure is controlled by additional external sealing. SKF lists a 5,600rpm reference speed and a 3,000rpm limiting speed for this shielded configuration. The bearing has normal radial internal clearance and an approximate mass of 6kg. Check the specified shaft fits, housing tolerances, lubrication conditions and handling arrangements before installation, particularly because interference fits can affect operating clearance.
Typical Applications:
Large industrial electric motor shaft assemblies
Heavy-duty gearboxes and mechanical transmissions
Industrial conveyor and material handling drives
Large centrifugal pump and compressor assemblies
Heavy rotating machinery and power transmission equipment
