Deep Groove Ball Bearings FAG 6212 -2Z-C4

The FAG 6212 -2Z-C4 deep groove ball bearing (60x110x22 mm) features non-contacting end shields and increased C4 bearing clearance for industrial applications subject to thermal stress.

The 6212 -2Z-C4 deep groove ball bearing is a single-row radial ball bearing made from standard rolling-element bearing steel 100Cr6, with dimensions of 60x110x22 mm. Fitted with sheet metal end shields on both sides and a robust sheet steel cage, this design primarily accommodates radial forces as well as moderate axial loads. The standard tolerance P0/PN ensures a precise fit in housings and on shafts. The design is rated for a temperature range of -30 to +120 degrees.

In which operating conditions does the 6212 -2Z-C4 deep-groove ball bearing prove its worth?

Designs involving significant heat generation or high speeds often lead to thermal expansion of the shaft. The significantly increased C4 bearing clearance compensates for temperature differences between the inner and outer rings, ensuring that the rolling elements remain free to move. As the non-contacting 2Z cover plates do not generate any additional friction, operational heating remains low. The bearing is suitable for operating conditions with moderate dust exposure, where smooth running is a priority.

Why is the significantly increased C4 radial clearance crucial?

The C4 designation indicates a significantly increased radial clearance in the as-supplied condition compared with standard clearance. This variant is recommended when tight fits on the shaft or housing reduce the bearing clearance during installation. Even in the event of significant temperature variations during operation, the increased radial clearance helps to prevent the bearing from becoming stressed. Conversely, for operating conditions where temperatures remain low without significant heating, a smaller radial clearance is often more appropriate.