Self-Aligning Ball B. FAG 1307 -K-TVH-C3

The FAG 1307 -K-TVH-C3 self-aligning ball bearing, with a 35 mm tapered bore and C3 clearance, compensates for misalignment during operation.

The FAG 1307 -K-TVH-C3 double-row self-aligning ball bearing absorbs radial forces and automatically compensates for misalignment and shaft deflection during operation. The hollow-spherical outer ring raceway guides two rows of balls, which run in an elastic polyamide cage. With key dimensions of a 35 mm bore, 80 mm outer diameter and 21 mm width, made from standard rolling-bearing steel 100Cr6, this open design covers a temperature range from -30 to +120 degrees.

What is the 1307 -K-TVH-C3 self-aligning ball bearing suitable for?

Designs featuring long shafts or split housings are prone to elastic deflection and misalignment during operation. This self-aligning bearing compensates for angular misalignment between the inner and outer rings without causing impermissible additional stresses. Design engineers prefer to integrate the bearing unit into shaft mountings prone to deflection. As this is an open rolling bearing without integrated sealing washers, lubrication and protection against contamination are provided by the surrounding machine housing.

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

The suffix ‘K’ refers to the tapered bore with a taper ratio of 1:12. This design allows for a positive-fit mounting using a clamping or withdrawal sleeve on smooth shaft journals as well as on stepped shafts. The slightly increased radial bearing clearance C3 accounts for the design-related loss of clearance when sliding the bearing onto the tapered seat. At the same time, this increased operating clearance provides a margin to accommodate temperature differences between the rotating inner ring and the stationary outer ring.