Self-Aligning Ball B. FAG 1213 -K-TVH-C3

The FAG 1213 -K-TVH-C3 double-row self-aligning ball bearing, with a tapered bore and dimensions of 65 × 120 × 23 mm, automatically compensates for misalignment during operation.

The FAG 1213 -K-TVH-C3 self-aligning ball bearing is a double-row rolling bearing made from standard rolling bearing steel (100Cr6) with a common hollow-spherical raceway in the outer ring. This design enables the two rows of balls to compensate for misalignment and shaft deflection. With dimensions of 65 mm bore diameter, 120 mm outer diameter and 23 mm width, the component is suitable for heavily loaded bearing positions in mechanical engineering. The integrated polyamide cage guides the rolling elements within a temperature range of -30 to +120 degrees Celsius.

What is the 1213 -K-TVH-C3 self-aligning ball bearing suitable for?

Its use is recommended for bearing locations where misalignment between the housing and the shaft occurs or where elastic shaft deflection needs to be compensated for. Such conditions typically arise with long shafts, where rigid bearings would lead to unacceptable residual stresses. As this is an open bearing without an integrated seal, the lubricant and external sealing must be selected to suit the operating environment. The design primarily accommodates radial forces as well as low axial loads.

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

The suffix ‘K’ indicates a tapered bore with a ratio of 1:12. This geometry allows for mounting directly onto a tapered shaft journal or, using a suitable adapter sleeve, onto a cylindrical shaft. When pushed on axially, the inner ring expands, thereby reducing the bearing clearance. The slightly increased radial clearance C3 accommodates this expansion and prevents internal stresses under thermal loading. The roller bearing is manufactured to tolerance class P0/PN (ABEC 1).