Deep Groove Ball Bearings SKF 6018 -2Z

The SKF 6018-2Z deep groove ball bearing, with a 90 mm bore, cover plates on both sides and P6 dimensional accuracy, offers precise operation for industrial shaft mountings.

The 6018-2Z deep-groove ball bearing is a single-row rolling bearing from SKF’s 60 series in the Explorer design. With an inside diameter of 90 mm, an outside diameter of 140 mm and a width of 24 mm, this design primarily accommodates radial forces as well as moderate axial loads in both directions. Manufactured from standard roller bearing steel (100Cr6), this design combines increased dimensional accuracy (class P6) with normal running accuracy (PN) and normal radial clearance.

What is the 6018-2Z deep groove ball bearing suitable for in operation?

This rolling bearing is suitable for rotating shaft applications with predominantly radial loads and medium to high speeds. As the outer ring has no groove or flange, the outer ring fits smoothly into cylindrical housing bores. The combination of a sheet steel cage and a non-contact gap seal ensures low-friction operation. With operating temperatures ranging from -20 to +120 degrees, the component can be used in typical industrial environments.

What is the function of the 2Z end plates and the P6 tolerance?

The suffix ‘-2Z’ denotes two sheet metal cover plates fitted on both sides. These gap covers protect the raceway from the ingress of coarser dirt particles and keep the factory-applied lubricant inside, without creating additional frictional resistance or wear on the sealing lip. The tighter P6 dimensional tolerance also facilitates the selection of a precise fit on the shaft and, in conjunction with the standard radial bearing clearance, promotes smooth, low-vibration concentricity.