Deep Groove Ball Bearings SKF 6209 -2Z/C3

The 6209 -2Z/C3 deep groove ball bearing, measuring 45x85x19 mm, combines non-contact protection against dirt with a slightly increased bearing clearance for demanding operating temperatures.

The SKF 6209 -2Z/C3 deep groove ball bearing is a single-row rolling bearing designed primarily for radial loads, which also accommodates axial forces in both directions. With a bore of 45 mm, an outside diameter of 85 mm and a width of 19 mm, this model complies with tolerance class P0/PN. It is manufactured from standard roller bearing steel 100Cr6 and features a sheet steel cage, ensuring dimensionally stable operation. This design is used where coarse foreign particles need to be kept out and thermal effects require increased radial clearance.

What is the 6209-2Z/C3 deep groove ball bearing suitable for in practice?

This design is suitable for rotating shafts and assemblies subjected to radial and axial forces on both sides, under moderate contamination. The sheet metal end shields on both sides keep out foreign particles without causing sliding friction or additional heating. The bearing is designed for a temperature range of -20 to +120 degrees. By design, the unit accommodates combined loads in compact bearing seats.

What do the C3 clearance and 2Z cover plates mean for this bearing?

The suffix 2Z stands for non-contacting gap seals made of sheet steel on both sides. These keep out foreign particles but do not generate any inhibiting frictional torque. The designation C3 indicates a slightly increased radial bearing clearance compared with the standard version. This clearance compensates for thermal expansion caused by temperature differences between the inner and outer rings and prevents mechanical stress during operation.