Deep Groove Ball Bearings SKF 6005 -2ZNR

The SKF 6005-2ZNR single-row deep groove ball bearing, measuring 25x47x12 mm, offers protection against dirt and axial housing retention via a snap ring.

The SKF 6005 -2ZNR deep groove ball bearing is a single-row radial ball bearing made from 100Cr6 bearing steel, with a bore diameter of 25 mm, an outer diameter of 47 mm and a width of 12 mm. By combining two sheet metal end plates with a ring groove and snap ring in the outer ring, this rolling bearing combines protection against dirt particles with axial retention in the housing bore. Manufactured as an SKF Explorer design, the bearing features enhanced precision grades of P6 for dimensions and P5 for concentricity.

What is the 6005-2ZNR deep groove ball bearing suitable for?

Design engineers and maintenance engineers use this bearing design primarily in compact housing constructions where shafts and components need to be axially secured. The pre-fitted snap ring provides axial retention directly at the housing shoulder, thereby eliminating the need for separate housing covers or additional retaining rings. At the same time, the deep raceways primarily support radial forces as well as moderate axial forces in both directions. The non-contacting cover plates keep foreign particles out without generating additional heat through frictional wear during continuous operation.

What are the advantages of the ring groove, snap ring and the P6/P5 tolerances?

The suffix 2ZNR denotes two key design features: the sheet metal cover on both sides to prevent the ingress of dirt, and the groove with retaining ring for space-saving mounting. As these are non-contact gap seals, the bearing is suitable for applications involving higher speeds without friction losses. The P6 tolerance class for external dimensions and P5 for running accuracy also support low-vibration operation in demanding assemblies. When installing, ensure that the snap ring fits precisely into the housing groove.