Deep Groove Ball Bearings SKF 6003 -2Z/C3

The SKF 6003 -2Z/C3 deep groove ball bearing combines non-contact cover plates with increased C3 bearing clearance, whilst maintaining compact overall dimensions of 17 × 35 × 10 mm.

The SKF 6003 -2Z/C3 single-row deep groove ball bearing is designed primarily to accommodate radial loads as well as moderate axial forces in both directions. Manufactured from standard rolling-element bearing steel (100Cr6) in the SKF Explorer design, the component is characterised by dimensional accuracy to tolerance class P6 and running accuracy to tolerance class P5. A sheet steel cage guides the rolling elements within the cylindrical outer ring without a flange.

What is the 6003-2Z/C3 deep groove ball bearing suitable for in practice?

Thanks to the sheet metal covers on both sides, the bearing protects the inner rolling elements from coarse particles without causing significant friction losses. The permissible temperature range is from –20 to +120 degrees. The deep-groove ball bearing is particularly suitable for applications where high speeds and smooth running are required. It is typically used in compact drives and rotating assemblies in general mechanical engineering.

What characteristics do C3 bearing clearance and tolerance class P6/P5 offer?

The design with a slightly increased radial clearance (C3) serves to compensate for operational thermal expansion between the shaft and the housing. Even with tighter fits, this bearing clearance is intended to prevent the rolling elements from seizing prematurely. The tolerance class – P6 for mounting dimensions and P5 for concentricity – supports low-vibration operation and helps to maintain the concentricity of rotating components.