SKF 608-2Z/C3 Metal Shielded Single Row Deep Groove Ball Bearing 8x22x7mm

The SKF 608-2Z/C3 shielded miniature deep groove ball bearing combines an 8mm bore, 22mm outside diameter and 7mm width with a design optimised for low friction and high rotational speeds. Its single row deep groove raceways support radial loads together with axial forces in either direction, within the bearing's rated limits. As an SKF Explorer bearing, it is engineered for consistent running performance in compact machinery. SKF specifies a basic dynamic load rating of 3.45kN and a basic static load rating of 1.37kN, providing useful reference values for bearing-life calculations and equipment selection. The C3 clearance allows more internal radial movement than a standard CN bearing before installation, helping accommodate clearance reductions caused by tight fits or thermal expansion where specified by the equipment manufacturer.

The 2Z designation identifies a metal shield on each side of the bearing. Unlike rubber contact seals, these shields do not rub against the inner ring, helping minimise seal-related friction while retaining factory-applied grease. They provide protection against larger particles but are not intended to offer the same moisture and fine-contaminant resistance as contact seals. SKF lists a 38,000rpm limiting speed and a 75,000rpm reference speed; these are distinct catalogue values rather than guaranteed continuous operating speeds. Actual running limits depend on lubrication, load, temperature and mounting conditions. During replacement, confirm the complete 608-2Z/C3 designation, as both the C3 clearance and shield type differ from standard-clearance or rubber-sealed 608 variants.

Typical Applications:

Small high-speed electric motors and fan assemblies

Compact precision drive and transmission systems

Light-duty conveyor and guide roller mechanisms

Printing and small automated handling equipment

Instrumentation and miniature rotating machinery