Deep Groove Ball Bearings SKF 6313 -2Z/C3

The SKF 6313 -2Z/C3 deep groove ball bearing (65x140x33 mm) offers contact-free dust protection and increased bearing clearance for thermally stressed industrial applications.

The SKF 6313 -2Z/C3 single-row deep groove ball bearing is designed to accommodate predominantly radial loads as well as moderate axial loads in both directions. Manufactured from standard 100Cr6 rolling bearing steel, this bearing is characterised by its robust design. The combination of a 65 mm inner diameter and a 140 mm outer diameter, with a width of 33 mm, is suitable for medium to heavy-duty shaft mountings. A sturdy sheet steel cage guides the rolling elements evenly into the deep raceways of the inner and outer rings.

What is the 6313-2Z/C3 deep-groove ball bearing suitable for in operation?

This rolling bearing is suitable for rotating shafts in industrial applications where radial forces and elevated operating temperatures predominate. Thanks to its manufacture to standard tolerances (P0/PN or ABEC 1), it fits into standardised housing seats. The design, which features no flange or groove on the outer ring, covers a tried-and-tested temperature range from –20 to +120 degrees Celsius.

What is the function of the C3 bearing clearance and the 2Z cover plates?

The suffixes denote two key features of this bearing. The abbreviation 2Z stands for sheet metal cover plates fitted on both sides. These covers protect the interior of the bearing from coarse dirt particles without causing additional friction or reducing rotational speed. The suffix C3 indicates a slightly increased radial bearing clearance. This compensates for thermal expansion of the shaft and housing, as well as press-fit allowances, during operation.