Self-Aligning Ball B. FAG 1313 -K-TVH-C3

The 1313 -K-TVH-C3 self-aligning ball bearing from FAG Wälzlager, with a 65 mm bore and tapered seat, provides reliable compensation for shaft deflection.

The 1313 -K-TVH-C3 from FAG Wälzlager is a double-row roller bearing made from standard bearing steel (100Cr6) with the main dimensions of 65 mm inner diameter, 140 mm outer diameter and 33 mm width. Designed as an open bearing, it operates in lubrication circuits at temperatures ranging from –30 to +120 degrees Celsius. The design dynamically compensates for misalignment between the inner and outer rings. A polyamide cage guides the rolling elements to tolerance class P0/PN (ABEC 1).

What is the 1313 -K-TVH-C3 self-aligning ball bearing suitable for in operation?

Design engineers and maintenance technicians use the 1313 -K-TVH-C3 self-aligning ball bearing primarily on long shafts or in flexible housings where operational deflection occurs. Thanks to the shared hollow-spherical raceway in the outer ring, the two rows of balls align angularly without generating edge pressures. Typical applications include bearing arrangements with shafts prone to deflection or misaligned housing positions. The open design allows for lubricant supply via housing systems, whilst the polyamide cage promotes favourable running characteristics.

What role do the tapered bore and C3 clearance play during assembly?

The suffix ‘K’ denotes a tapered bore with a ratio of 1:12. You can mount this bearing either directly onto tapered shaft journals or, using a mounting sleeve, onto cylindrical shafts. The slightly increased radial clearance C3 is crucial to its function: When pressed onto the tapered seat, the inner ring expands, thereby reducing the radial bearing clearance. The C3 design helps to ensure that the required operating clearance is maintained following axial displacement and under thermal expansion during operation.