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The SKF 6208-2Z double shielded deep groove ball bearing combines a 40mm bore, 80mm outside diameter and 18mm width for industrial rotating equipment requiring dependable radial load support. Its single row deep groove raceways also accommodate axial forces in either direction, subject to the bearing's rated limits. As an SKF Explorer bearing, it is engineered for efficient running with low noise and vibration. SKF specifies a basic dynamic load rating of 32.5kN and a basic static load rating of 19kN, providing useful parameters for service-life calculations and load assessment. The 6208 belongs to the standard 62 series, offering a more substantial bearing cross-section than the narrower 6008 while occupying less space than the larger 6308.
The 2Z suffix indicates non-contact metal shields on both sides, rather than rubber contact seals. These shields help retain the factory-applied grease and restrict larger airborne contaminants while avoiding the additional rubbing friction associated with contact sealing. SKF lists a reference speed of 18,000rpm and a limiting speed of 9,000rpm for this configuration; these are different calculation parameters, not interchangeable operating limits. The shielded design is best suited to relatively clean machinery because it offers less protection against water and fine contamination than a 2RS1 contact-sealed alternative. Normal (CN) radial internal clearance and a sheet metal cage complete the specification. For replacement work, confirm whether the original equipment requires 2Z shielding, 2RS1 contact seals or C3 increased internal clearance, as these suffixes affect operating characteristics even when the mounting dimensions are identical.
Typical Applications:
Industrial electric motors and drive assemblies
Ventilation fans and air-handling equipment
Centrifugal pumps operating in clean environments
Enclosed gearboxes and power transmission systems
Conveyor drives and industrial rotating machinery
