Self-Aligning Ball B. SKF 2304 E-2RS1TN9

The SKF 2304 E-2RS1TN9 double-row self-aligning ball bearing compensates for angular misalignment and protects against contamination with 2RS1 seals (dimensions 20x52x21 mm).

The 2304 E-2RS1TN9 self-aligning ball bearing is a double-row rolling bearing made from standard 100Cr6 bearing steel, with main dimensions of a 20 mm bore, 52 mm outer diameter and 21 mm width. Thanks to the common hollow-spherical raceway in the outer ring, the design automatically compensates for misalignment and shaft deflection during operation. This SKF design combines two rows of balls with a standard radial clearance and tolerance class P0/PN (ABEC 1) for industrial drives.

What advantages does the 2304 E-2RS1TN9 self-aligning ball bearing offer in the event of misalignment?

This self-aligning ball bearing is particularly suitable for applications where misalignment occurs between the housing and the shaft, or where shafts flex elastically during operation. The double-row design absorbs radial forces and guides the rolling elements along the hollow-spherical outer ring raceway. This design prevents excessive edge pressure and ensures smooth running even when the bearing is misaligned.

What are the key considerations regarding the seals and cage of the 2304 E-2RS1TN9 self-aligning ball bearing?

When selecting this bearing, the 2RS1 seals, which seal on both sides, and the TN9 polyamide cage are crucial. The seals keep out dirt particles and reduce lubricant leakage, but limit the maximum speed compared to open designs. The polyamide cage ensures low weight and flexible guidance within a temperature range of –30 to +100 degrees Celsius.

To ensure a precise fit, the housing dimensions – with an outer diameter of 52 mm and a 20 mm shaft seat – must be matched. Thanks to the integrated seal, the component is particularly suitable for environments exposed to dust or moisture.