Self-Aligning Ball B. FAG 2209 -K-2RS-TVH-C3

The FAG 2209 -K-2RS-TVH-C3 self-aligning ball bearing compensates for misalignment and combines a tapered bore with 2RS seals on both sides for demanding shaft systems.

The 2209 -K-2RS-TVH-C3 self-aligning ball bearing is a double-row rolling bearing made from standard 100Cr6 bearing steel, with dimensions of 45 x 85 x 23 mm. Thanks to the common hollow spherical raceway in the outer ring, the bearing flexibly compensates for misalignment between the shaft and the housing. The manufacturer, FAG, equips this variant with contacting 2RS lip seals and a lightweight polyamide cage, which reduces friction and retains the lubricant inside the bearing.

In which applications does the 2209 -K-2RS-TVH-C3 self-aligning ball bearing prove its worth?

This double-row bearing is particularly suitable where shaft deflection or assembly inaccuracies may occur. The self-aligning movement compensates for angular misalignment during operation without generating excessive edge pressures on the rolling elements. Thanks to the 2RS seals on both sides, this design protects the system against the ingress of dust and moisture. The bearing covers a temperature range from –30 to +100 degrees Celsius and is suitable for shaft mountings requiring elastic behaviour.

When is the combination of a tapered bore and C3 clearance appropriate?

The suffix ‘K’ denotes a tapered bore with a ratio of 1:12. This design facilitates mounting on adapter sleeves or directly onto tapered shaft seats. When pressed onto the tapered seat, the radial clearance in the bearing is reduced. The factory-set increased bearing clearance C3 specifically counteracts this press-fit effect. Furthermore, the increased bearing clearance helps to maintain the radial bearing clearance during operation-induced heating. In terms of design, the bearing complies with the standard tolerance class P0/PN or ABEC 1.