QJ228-N2-MPA-C3-FAG Four Point Contact Ball Bearing 140x250x42mm Closed d a max 82 mm

d a max 82 mm Maximum diameter of shaft shoulder

Distance to Thread Centre (B4): 8mm

Inside diameter d: 220mm

Outside length: 3746mm

Double lip Viton metric rotary shaft oil seal with garter spring 45mm inside x 62mm outside x 8mm wide

QJ228-N2-MPA-C3-FAG Four Point Contact Ball Bearing 140x250x42mm Closed d a max 82 mmFAG Four point contact bearings are similar in their structure to double row angular contact ball bearings, but are considerably narrower in an axial direction due to only one raceway groove. Since the centres of curvature of the arc shaped raceways on the inner ring and outer ring are offset relative to each other, the balls are in contact with the bearing rings at four points under radial load. For this reason, four point contact bearings are only