Self-Aligning Ball B. FAG 2312 -K-TVH-C3

The double-row self-aligning ball bearing 2312 -K-TVH-C3 compensates for misalignment and, with a 60 mm bore, an outer diameter of 130 mm and a width of 46 mm, provides stable guidance.

The 2312 -K-TVH-C3 self-aligning ball bearing from FAG is a double-row rolling bearing made from standard rolling-bearing steel (100Cr6) with a hollow-spherical outer ring raceway. This design automatically compensates for angular misalignment and shaft deflection during operation. The open unit features a slightly increased radial clearance (C3) and a lightweight polyamide cage. With key dimensions of 60 mm bore diameter, 130 mm outer diameter and 46 mm width, this design is suitable for a wide range of industrial shaft mountings.

In which applications does the 2312 -K-TVH-C3 self-aligning ball bearing compensate for misalignment?

This rolling bearing is primarily used in shaft guidance systems where misalignment between bearing seats or deflections in flexible shafts need to be compensated for. The double-row ball arrangement primarily accommodates radial loads, but also guides the shaft even under low axial forces. Thanks to its manufacture to tolerance class P0/PN (ABEC 1), the component can be integrated precisely into existing housing designs.

The spherical outer ring raceway allows the rolling elements to adjust freely in the event of misalignment without generating edge stresses. This protects the raceways from dynamic bending moments and ensures smooth running.

What is the function of the tapered bore and C3 clearance during installation?

The suffix ‘K’ denotes a tapered inner ring bore with a taper ratio of 1:12. This design facilitates mounting on tapered shaft seats or on cylindrical shafts using clamping and withdrawal sleeves. When the bearing is slid onto the taper, the radial bearing clearance is reduced. The factory-set increased bearing clearance (C3) compensates for this reduction in clearance as well as for operational heating. The polyamide cage (TVH) is suitable for an operating temperature range of -30 °C to +120 °C.