SKF 6028-2Z/C3 Metal Shielded Single Row Deep Groove Ball Bearing 140x210x33mm

The SKF 6028-2Z/C3 double-shielded deep groove ball bearing provides rotational support for large industrial shafts while maintaining a comparatively compact radial cross-section. With a 140mm bore, 210mm outside diameter and 33mm width, its 60 series geometry is useful where the installation envelope does not permit a wider-section bearing. The single row deep groove design accommodates predominantly radial loads together with axial forces in either direction, subject to operating limits. SKF catalogue data specifies a basic dynamic load rating of 111kN and a basic static load rating of 108kN. These values are relevant when assessing fatigue life, stationary loading and the demands placed on heavy rotating machinery.

The 2Z designation identifies pressed steel shields fitted on both sides of the bearing. Unlike rubber contact seals, the shields do not normally touch the inner ring, helping reduce friction while providing protection against larger contaminants and supporting grease retention. They are not intended to provide the same protection against water or fine contamination as contact seals. The C3 suffix denotes radial internal clearance greater than normal, allowing engineers to account for clearance reductions caused by tight fits and temperature differences during operation. SKF lists a 3,200rpm limiting speed for the double-shielded 6028 configuration. Actual operating speed must also consider load, lubrication and thermal conditions. Confirm the full 6028-2Z/C3 designation before installation, as the CN-clearance and open versions have different operating characteristics.

Typical Applications:

Large industrial electric motors and drive systems

Heavy-duty conveyor and material handling equipment

Industrial fans and ventilation machinery

Mechanical power transmission and shaft assemblies

Large rotating equipment with C3 clearance requirements