Self-Aligning Ball B. SKF 2208 ETN9

The 2208 ETN9 double-row self-aligning ball bearing compensates for misalignment caused by shaft deflection and measures 40 × 80 × 23 mm.

The SKF 2208 ETN9 self-aligning ball bearing is a double-row rolling bearing made from standard bearing steel (100Cr6) with a cylindrical bore. Thanks to the shared spherical raceway in the outer ring, the two rows of balls adjust flexibly in the event of misalignment. The open bearing has a standard radial clearance and a tolerance class of P0/PN (ABEC 1). Thanks to its lightweight polyamide cage, the bearing operates with low vibration within a temperature range of -30 to +120 degrees Celsius.

What is the 2208 ETN9 self-aligning ball bearing suitable for in operation?

The 2208 ETN9 self-aligning ball bearing is suitable for designs where elastic shaft deflection or misalignment between the housing and the shaft occurs. Typical areas of application are found in industrial applications with solid shafts and separate bearing locations. This design primarily accommodates radial loads and compensates for misalignment of the inner ring relative to the outer ring without significantly increasing friction. As this is an open design, lubrication is provided by the surrounding housing structure.

What are the advantages of the polyamide cage in the 2208 ETN9 self-aligning ball bearing?

The polyamide cage is characterised by its low weight and good damping properties. This makes the design suitable for dynamic speeds within the temperature range of –30 to +120 degrees Celsius. When designing the application, it must be borne in mind that the bearing is unsealed. Dirt and moisture must therefore not be allowed to enter the bearing directly. The dimensions are a 40 mm bore, an 80 mm outer diameter and a 23 mm width for the corresponding bearing seat.