Deep Groove Ball Bearings SKF 6217 -2Z/C3

Single-row SKF deep groove ball bearing 6217 -2Z/C3 with dimensions 85x150x28 mm, non-contacting sheet metal end shields and C3 clearance for industrial drives.

The SKF 6217 -2Z/C3 deep groove ball bearing is a versatile rolling bearing designed primarily for radial loads, whilst also accommodating axial forces in both directions. With a bore of 85 mm, an outer diameter of 150 mm and a width of 28 mm, this single-row bearing is suitable for medium-sized to heavy-duty shaft designs. Manufactured from standard 100Cr6 rolling-element bearing steel and featuring an integrated sheet steel cage, it offers high dimensional stability within a temperature range of -20 to +120 degrees Celsius.

What is the 6217 -2Z/C3 deep groove ball bearing suitable for in practice?

Design engineers and maintenance technicians prefer to use this bearing in industrial drives and rotating shaft assemblies with increased thermal requirements. As the outer ring has no flange or groove, the component can be easily fitted into cylindrical housing bores. The sheet metal cover on both sides protects the interior from coarse dirt particles and foreign bodies without causing significant friction losses. This makes the unit suitable for continuous operation at moderate levels of environmental contamination.

What are the advantages of the C3 bearing clearance in the 6217-2Z/C3 model?

The C3 designation indicates a slightly increased radial bearing clearance compared with the standard version. This variant is recommended where tight fits on the shaft and housing eliminate part of the radial clearance, or where temperature differences arise between the inner and outer rings during operation. The additional bearing clearance reduces the risk of operational stress on the rolling elements. In combination with the standard tolerance P0 or ABEC 1, this version offers reliable concentricity characteristics.