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The SKF 6204-2Z shielded deep groove ball bearing provides a versatile bearing solution for rotating equipment using a 20mm shaft and 47mm housing bore. Its 14mm width follows the standard 6204 dimensions, making it suitable for replacement applications where the original bearing has the same designation and internal clearance. The SKF Explorer single row design accommodates predominantly radial loading together with axial forces acting in either direction, within its rated limits. SKF specifies a basic dynamic load rating of 13.5kN and a basic static load rating of 6.55kN. These ratings help engineers assess bearing service life and suitability for machinery operating under continuous or varying loads.
The 2Z suffix identifies a non-contact metal shield on each side of the bearing. Unlike rubber contact seals, these shields do not rub against the rotating inner ring, helping minimise friction and heat generation. They retain factory grease and provide protection against larger airborne particles, although they offer less resistance to water and fine contamination than contact seals. SKF lists a reference speed of 32,000rpm and a limiting speed of 17,000rpm; these are distinct catalogue parameters rather than interchangeable continuous operating ratings. With normal (CN) radial internal clearance and a sheet metal cage, the bearing is suited to correctly aligned, protected rotating assemblies. For replacement work, confirm whether the equipment requires the metal-shielded 6204-2Z, the rubber-sealed 6204-2RS1 or a C3 clearance variant.
Typical Applications:
Industrial electric motors and drive assemblies
Ventilation fans and blower units
Centrifugal pumps in protected installations
Light-duty conveyor and transmission systems
Workshop machinery and rotating shaft supports
