This four-point contact bearing carries axial loads in both directions on a single row of balls, using a split raceway design that allows the ring halves to be assembled with a full ball complement. The QJ219-N2-MPA has a bore diameter of 95.0 mm, outside diameter of 170.0 mm, and width of 32.0 mm, with a net mass of 3.292 kg. It is fitted with a solid brass cage (MPA) and features holding grooves on the outer ring. Limiting speed is rated at 7000 1/min, with a reference speed of 3700 1/min. The four-point contact geometry allows this bearing to take up combined radial and bidirectional axial loads within a single row, reducing the axial installation space compared to paired arrangements. The solid brass cage provides stable ball guidance and strength at the stated speed ratings, while the holding grooves in the outer ring simplify axial positioning during mounting. As an open bearing, lubrication and sealing must be provided externally, and shaft and housing fits should be selected according to the intended load direction and operating clearance.