Four Point Contact B. FAG QJ216 -N2-MPA

The FAG QJ216 -N2-MPA four-point bearing, measuring 80 × 140 × 26 mm, accommodates high axial loads in both directions.

The QJ216 -N2-MPA four-point bearing is a special single-row angular contact ball bearing designed to accommodate axial loads in both directions whilst maintaining a compact axial width. The rolling bearing is manufactured by FAG Wälzlager and features a split inner ring and a robust brass cage. Thanks to its design featuring an 80 mm bore, 140 mm outer diameter and 26 mm width, this construction saves axial installation space. As an open bearing, it can be integrated directly into existing lubrication systems and supports operating temperatures from -30 to +150 degrees.

In which installation scenarios is the QJ216 -N2-MPA four-point bearing suitable?

This rolling bearing is suitable for designs in which predominantly axial forces occur in both directions. It is frequently used in combination with a separate radial bearing that absorbs the transverse loads. In the case of purely axial guidance, the outer ring can be given radial clearance within the housing so that it remains free from transverse forces. The compact width of 26 mm allows installation in places where double-row angular contact ball bearings would require too much axial space.

What is the function of the retaining grooves and the brass cage in the QJ216 -N2-MPA?

This design features two retaining grooves in the outer ring, offset by 180 degrees. These grooves enable the bearing to be secured in the housing using locking pins, which prevents the outer ring from moving unintentionally. The split inner ring simplifies assembly, as the outer ring with the ball race and the two inner ring halves can be fitted separately. The guided brass cage provides the rolling element ring with mechanical stability at varying speeds. With a tolerance class of P0 or ABEC 1, the bearing meets standard precision requirements.