Four Point Contact B. FAG QJ214 -MPA

The FAG QJ214-MPA four-point bearing accommodates axial forces in both directions whilst featuring a slim design and dimensions of 70 × 125 × 24 mm.

The FAG QJ214-MPA four-point bearing is a single-row radial ball bearing which, thanks to its special raceway geometry, accommodates axial loads in both directions. With a bore of 70 mm, an outside diameter of 125 mm and a width of 24 mm, this rolling bearing requires minimal axial installation space. As it is an open bearing without sealing rings, the lubricant can be freely selected to suit the specific operating conditions.

What is the QJ214-MPA four-point bearing suitable for in mechanical engineering?

This bearing is primarily used where axial forces occur in alternating directions and defined shaft guidance is required. Typical applications are found in industrial bearing arrangements subject primarily to axial loads. The four-point bearing is often fitted in combination with a separate radial bearing, in which case, with radial housing clearance, it performs exclusively axial guidance functions. As the outer ring has no retaining grooves, it is secured via the housing seat.

What are the special features of the split inner ring and brass cage?

In terms of design, this component is characterised by a two-piece inner ring. As a result, the bearing accommodates a larger number of balls, which enhances its axial load-carrying capacity. Furthermore, this design facilitates the separate mounting of the inner and outer rings onto the shaft and housing. The guided brass cage, identified by the suffix MPA, exhibits high mechanical strength and is designed for a temperature range of –30 to +150 degrees. The bearing has a standard radial clearance and complies with tolerance class P0/PN or ABEC 1.