Deep Groove Ball Bearings SKF 6313 -Z/C3

The SKF 6313 -Z/C3 deep-groove ball bearing, with dimensions of 65x140x33 mm, C3 clearance and a Z-type cover, offers reliable running characteristics for demanding radial loads.

The SKF 6313 -Z/C3 single-row deep groove ball bearing primarily accommodates radial forces as well as axial loads in both directions. Manufactured from standard rolling bearing steel 100Cr6, this rolling bearing has a bore of 65 mm, an outer diameter of 140 mm and a width of 33 mm. The design complies with standard tolerance P0 or ABEC 1. A robust sheet steel cage guides the rolling elements securely in the deep raceways.

Under what operating conditions is the 6313 -Z/C3 deep-groove ball bearing suitable?

This bearing is primarily used in designs where elevated operating temperatures occur and both axial and radial forces must be reliably absorbed. The component is designed for a temperature range of -20 to +150 degrees. The single-sided sheet metal cover leaves the open side accessible for targeted lubricant supply from inside the housing, whilst the metal cover plate prevents coarse particles from entering from the opposite side.

What are the advantages of the C3 bearing clearance and the Z cover plate?

The C3 designation indicates increased radial bearing clearance compared with the standard version. This increased radial clearance compensates for thermal expansion of the shaft and housing, as well as fit allowances during operation, without causing stress. The single-sided Z-seal acts as a non-contact gap seal. It does not cause any additional frictional torque and thus ensures smooth shaft rotation.