Deep Groove Ball Bearings SKF 6316 /C3

The 6316/C3 deep-groove ball bearing from SKF Rolling Bearings, with dimensions of 80 × 170 × 39 mm and increased bearing clearance, is designed for radial loads.

This single-row deep-groove ball bearing 6316/C3 primarily supports radial loads whilst also guiding shafts in the axial direction. Thanks to its open design without integrated sealing washers, the bearing is suitable for installations with an external lubrication system. A sheet steel cage is used. The rings and rolling elements are made of standard rolling-element bearing steel 100Cr6, which is designed for the permissible temperature range of –20 to +150 degrees.

In which applications is the 6316/C3 deep groove ball bearing used?

Design engineers use this size in industrial drives and rotating assemblies with solid 80 mm shafts. The open design allows for lubrication via the surrounding system, for example through an existing oil bath or a circulating grease lubrication system. As the bearing has neither a flange nor a ring groove on the outer ring, the 170 mm outer ring can be slid directly into cylindrical housing bores.

What is the function of the C3 bearing clearance during assembly?

The designation C3 indicates a slightly increased radial bearing clearance compared with the standard version. This additional clearance between the rolling elements and raceways compensates for dimensional changes when tight fits on the shaft or housing cause the inner ring to expand. Similarly, the increased bearing clearance helps to minimise stress on the bearing should temperature differences arise between the shaft and the housing during operation. The tolerance class P0/PN or ABEC 1 defines the dimensional accuracy required by the standard for industrial applications.