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

The SKF 6028-2Z double shielded deep groove ball bearing provides rotational support for substantial 140mm shafts where bearing load capacity must be balanced against available housing space. Its 210mm outside diameter and 33mm width make it a relatively slim option for a bearing of this bore size. The single row deep groove construction carries predominantly radial loads while also accommodating axial forces in both directions within its rated capacity. SKF specifies a basic dynamic load rating of 111kN and a basic static load rating of 108kN. These ratings support bearing-life calculations and assessment of operating loads, particularly in industrial machinery where shaft loads, alignment and mounting conditions must be carefully controlled.

The 2Z designation identifies steel shields on both sides of the bearing. These non-contact shields help retain the factory grease and restrict the entry of larger particles while generating less friction than contacting rubber seals. They are most appropriate for relatively clean operating environments and do not provide the same protection against fine dust or moisture as contact seals. SKF lists a reference speed of 6,700rpm and a limiting speed of 3,200rpm; the applicable operating speed must be assessed using the bearing's lubrication, load and temperature conditions. The bearing has normal (CN) radial internal clearance and a sheet metal cage. For replacement work, confirm the full 6028-2Z designation, as the contact-sealed 6028-2RS1 and increased-clearance variants have different operating characteristics.

Typical Applications:

Large industrial electric motor assemblies

Industrial gearboxes and transmission shafts

Heavy-duty conveyor drive equipment

Rotating machinery with 140mm shaft supports

Industrial processing and mechanical drive systems