SKF 6008-2Z Metal Shielded Single Row Deep Groove Ball Bearing 40x68x15mm

The SKF 6008-2Z shielded deep groove ball bearing provides efficient shaft support for rotating equipment where a 40mm bore must fit within a relatively compact 68mm housing diameter. Its 15mm width makes it narrower than the corresponding 6208 bearing, which measures 40 x 80 x 18mm, so the two are not dimensionally interchangeable. The SKF Explorer raceway design is engineered for low friction, controlled vibration and reliable operation under predominantly radial loads, while also accommodating axial forces in either direction within the bearing's rated limits. SKF specifies a basic dynamic load rating of 17.8kN and a basic static load rating of 11kN, providing useful reference values for bearing-life calculations and equipment selection.

The 2Z designation means a non-contact metal shield on each side, rather than the rubber contact seals used on 2RS1 variants. These shields help retain the factory-applied grease while offering limited protection against larger particles. Their low-drag design is particularly beneficial in clean or enclosed environments where rotational efficiency and reduced heat generation are priorities. SKF lists a reference speed of 22,000rpm and a limiting speed of 11,000rpm; these are distinct catalogue values, not guarantees of permissible continuous speed in every installation. The bearing features normal (CN) radial internal clearance and a sheet metal cage. When replacing an existing bearing, verify the 6008-2Z designation, housing dimensions and shielding requirements, as metal shields provide less protection against fine dust and moisture than contacting rubber seals.

Typical Applications:

Industrial electric motors and auxiliary drives

Ventilation fans and air-handling equipment

Light-duty mechanical transmission systems

Enclosed conveyor and pulley assemblies

Workshop machinery and rotating shaft supports