Deep Groove Ball Bearings FAG 6214 -C3

The FAG 6214-C3 single-row deep-groove ball bearing with a 70 mm bore offers increased bearing clearance for industrial applications subject to thermal stress.

As an open radial ball bearing, the 6214-C3 is one of the most versatile machine components for rotating shafts. The design, made from standard rolling-bearing steel 100Cr6, primarily absorbs radial forces and also guides shafts under axial loads in both directions. A sheet steel cage guides the rolling elements along the deep raceway of the inner and outer rings. With the standard tolerance P0, this bearing meets common industrial precision requirements in general mechanical engineering.

Under what operating conditions is the 6214-C3 deep-groove ball bearing used?

Design engineers and maintenance personnel opt for this size when mounting shafts with a 70 mm diameter at medium to high speeds. Typical applications include bearing arrangements subject to combined radial and axial loads, as well as operational heating. With a permissible temperature range of –20 to +150 degrees, this design is suitable for environments subject to high temperatures. The open profile, without integrated sealing washers, allows for direct lubrication with grease or lubricating oil via the housing design.

What are the advantages of the increased C3 radial clearance?

The C3 designation indicates a radial bearing clearance that is slightly greater than the standard clearance. This radial clearance compensates for thermal expansion that occurs during continuous operation between the bearing rings or due to tight fits on the shaft and housing. It helps to prevent the rolling elements from becoming jammed due to thermal expansion. As no seals generate frictional heat, the open design promotes smooth running; however, it requires an external housing seal at the bearing location to protect against dirt particles.