QJ311-MPA-FAG Four Point Contact Ball Bearing 55x120x29mm Closed They can even be recessed

They can even be recessed into surfaces

D a max 71 mm Maximum diameter of housing shoulder

da Min: 35

21 mm Recess diameter

Specification Value Product 61-23 Simplex Taper Lock Sprocket Chain Size 61 Simplex (Single Strand) Number of Teeth 23 Pitch Diameter (dp) 139

QJ311-MPA-FAG Four Point Contact Ball Bearing 55x120x29mm Closed They can even be recessedFAG 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