Self-Aligning Ball B. SKF 1313 ETN9

The SKF 1313 ETN9 self-aligning ball bearing, measuring 65x140x33 mm, compensates for misalignment and absorbs radial loads.

This SKF 1313 ETN9 double-row self-aligning ball bearing is suitable for applications where misalignment of the housing or shaft deflection occurs. Thanks to the shared spherical raceway in the outer ring, the two rows of balls automatically adjust their angular position during operation. As an open rolling bearing made from standard 100Cr6 rolling bearing steel, the bearing requires on-site sealing and a suitable lubrication supply. The permissible operating temperature range extends from -30 to +120 degrees Celsius.

In which installation scenarios does the 1313 ETN9 self-aligning ball bearing compensate for misalignment?

The bearing is particularly suitable for shaft arrangements where manufacturing-related misalignments occur between bearing positions or where deflection under load takes place. Thanks to its angularly adjustable design, the component helps to prevent premature edge stresses on the balls. Typical applications include designs with long shafts or flexible frame structures that are subject to deformation. Thanks to its manufacture to tolerance class P0, the bearing can be reliably integrated into standardised housing seats and shaft fits.

What are the characteristics of the ETN9 polyamide cage?

The suffix ETN9 denotes a polyamide cage that guides the two rows of balls and keeps them spaced apart. This material reduces the weight of the rotating cage assembly and minimises friction at varying speeds. Furthermore, polyamide possesses elastic properties, which are advantageous in the presence of vibrations and light impact loads. When selecting a lubricant, care must be taken to ensure that the grease or lubricating oil is suitable for the temperature range up to +120 degrees Celsius and for the plastic material.