Self-Aligning Ball B. SKF 2205 E-2RS1TN9

The SKF 2205 E-2RS1TN9 self-aligning ball bearing, measuring 25 × 52 × 18 mm, compensates for shaft deflection and protects against contamination thanks to its lip seals.

This double-row roller bearing, made from standard bearing steel (100Cr6), is suitable for applications where misalignment or elastic shaft deflection occurs. The hollow-spherical outer ring raceway allows the two rows of balls to compensate for angular misalignment between the inner and outer rings during operation. Thanks to the factory-fitted seals, which provide a sliding seal on both sides, the lubricant remains inside whilst dust and moisture are prevented from entering.

In which installation situations does the 2205 self-aligning ball bearing compensate for misalignment?

The use of this self-aligning ball bearing is recommended for designs with misalignment or for shafts that deflect elastically under load. Typical applications can be found in general mechanical engineering in bearing arrangements where there is a risk of deflection. Thanks to the double-sided sealing, the component is also suitable for dusty environments. The integrated polyamide cage ensures smooth running and keeps the friction torque of the rolling elements low.

What advantages do the seal and polyamide cage offer in this variant?

The suffix 2RS1 denotes contact seals, which help to reduce the ingress of contaminants and the loss of grease. The polyamide (TN9) material offers high elasticity and good running characteristics at operating temperatures ranging from -30 to +100 degrees Celsius. With standard radial bearing clearance and tolerance class P0 (ABEC 1), the bearing complies with current standards for industrial series production and repairs.