... , 3.Material: Bearing steel, 4.Various size and type, 5.15-30days delivery. Self-Aligning Ball Bearingself-aligning ball bearings have two ... self-aligning ball bearing has the lowest friction of all rolling bearings, which enables it to run cooler even at high speeds. ... 1300, 2200, 2300 seriesl Application: agricultural machinery, chemistry, pumps, etc. ball bearing turbo of 1200series FOR A brand