SKF - QJ 228 N2MA/C4B20

Details

Four-point contact ball bearings with locating slots can accommodate high axial loads in both directions and small radial loads. They can operate at very high speeds and are more suitable than deep groove ball bearings for supporting large axial forces. The outer ring, with ball and cage assembly, can be mounted separately from the two inner ring halves. The locating slots can be used to prevent the outer ring from rotating. Features are : High-speed capability, Accommodate high axial loads in both directions and small radial loads, Require considerably less axial space than double row angular contact ball bearings, The locating slots can be used to prevent the outer ring from rotating. Applilcations : Industrial gearboxes, Cranes and hoisting equipment, Mining and construction machinery, Pumps and compressors, Automotive transmissions, Wind turbines. N2 : Two Locating Slots (Notches), 180° Apart, In The Large Outer Ring Side Face, MA : Machined Brass Cage Guidance By The Outer Ring, C4 : Bearing Internal Clearance Greater Than C3, B20 : Stabilized Rings And Reduced Width Tolerance.

Specifications