QJ311-MPA-FAG Four Point Contact Ball Bearing 55x120x29mm Closed Shaft P:201 N/mm2

Shaft P:201 N/mm2

Ca90 - Dynamic Thrust Rating (90 million revolutions)6: 44000 N / 9900 lbf

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

da Min: 35

Internal length 1549mm

QJ311-MPA-FAG Four Point Contact Ball Bearing 55x120x29mm Closed Shaft P:201 N/mm2FAG 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