Four Point Contact B. FAG QJ305 -TVP

The FAG QJ305-TVP four-point contact bearing, with a 25 mm bore and a split inner ring, accommodates high axial forces from two directions whilst requiring minimal installation space.

The QJ305-TVP four-point contact bearing from FAG Rolling Bearings is a single-row angular contact ball bearing with four-point contact. With dimensions of a 25 mm bore, 62 mm outer diameter and a width of 17 mm, this design requires less axial installation space than a double-row bearing arrangement. Thanks to its open design without a seal, the rolling bearing can be integrated directly into an existing lubrication system for the entire plant.

What is the QJ305-TVP four-point bearing with a split inner ring suitable for?

This bearing is particularly suitable where axial forces act in both directions and rigid shaft guidance is required. Typical designs utilise four-point bearings for combined loads or in conjunction with a separate radial bearing. The split inner ring allows a greater number of balls to be accommodated within the bearing, which enhances the axial load-carrying capacity of the assembly.

What are the characteristics of the polyamide cage and the standard tolerance?

The designation ‘TVP’ indicates a polyamide cage, which guides the rolling elements with low vibration and reduces the unit’s own weight. The bearing covers a temperature range from –20 to +120 degrees. With the standard tolerance class P0 (ABEC 1) and standard radial clearance, the unit meets practical requirements in mechanical engineering. As the outer ring has no retaining groove, it is secured in the housing by an interference fit.