Deep Groove Ball Bearings SKF 6004 -Z

The SKF 6004-Z deep groove ball bearing, with dimensions of 20x42x12 mm, a single-sided sheet metal cover and enhanced precision, offers reliable running characteristics in mechanical engineering.

The 6004-Z deep groove ball bearing is a single-row radial ball bearing made from rolling bearing steel (100Cr6) in the SKF Explorer performance class. The design primarily accommodates radial loads and supports shafts with a 20 mm diameter within the housing. Thanks to the single-sided Z-cover, the interior on the closed side remains protected from coarse dirt particles, whilst the open side allows access to lubricant within the housing. A robust sheet steel cage maintains a uniform spacing between the rolling elements.

In which installation spaces does the 6004-Z deep groove ball bearing prove its worth?

Designs with a single-sided lubricant supply preferentially use this bearing type in compact shaft mountings and gearbox units. Thanks to the single-sided sheet metal cover, the component is particularly suitable for installation spaces where one side of the bearing is located within the lubricating oil circuit, whilst the opposite side needs to be protected against particle ingress. The Explorer-class version ensures smooth running at operating temperatures ranging from -20 to +150 degrees Celsius.

What is the function of tolerance classes P6 and P5 in the 6004-Z?

This specification combines dimensional accuracy in accordance with Class P6 with running accuracy in accordance with Class P5. Compared with standard tolerances, these classes reduce manufacturing-related dimensional deviations and concentricity errors during operation, which contributes to smooth running and lower vibrations. In conjunction with standard radial bearing clearance, this design is suitable for assemblies with high requirements for guidance accuracy.