Deep Groove Ball Bearings FAG 6306 -Z-C3

The 6306 -Z-C3 deep groove ball bearing from FAG Wälzlager, measuring 30x72x19 mm, offers increased C3 bearing clearance and one-sided protection against coarse contamination.

The 6306 -Z-C3 deep groove ball bearing is a single-row radial ball bearing for rotating shafts in industrial applications. With a bore of 30 mm, an outside diameter of 72 mm and a width of 19 mm, the cylindrical outer ring corresponds to the standard design without a groove or flange. Manufactured from standard roller bearing steel 100Cr6, the rings and rolling elements offer high dimensional stability under load. The integrated sheet steel cage guides the balls evenly and ensures smooth running.

What loads and operating conditions can the 6306 -Z-C3 deep groove ball bearing accommodate?

This radial deep-groove ball bearing primarily accommodates radial forces as well as axial loads in both directions. Design engineers and maintenance personnel use the 6306 design for rotating shafts in industrial assemblies with single-side lubrication. The single-sided sheet metal cover leaves one side of the bearing open to lubricant from inside the housing, whilst the closed side protects against coarse particles. This is suitable for housing designs with separate lubrication zones.

What do the designations Z and C3 mean for selection?

The suffix ‘Z’ denotes a sheet metal cover plate pressed in on one side. This non-contact seal generates no additional frictional torque, which is why the speed limits remain virtually unchanged compared with open bearings. The suffix C3 denotes a slightly increased radial bearing clearance. This variant compensates for temperature differences between the inner and outer rings and prevents stress build-up in the case of tight press fits. The standard tolerance P0 meets common requirements for dimensional and concentricity accuracy.