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Koyo 31311DJR bearing high speed in Italy

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An angular contact ball bearing uses axially asymmetric races. An axial load passes in a straight line through the bearing, whereas a radial load takes an oblique path that tends to want to separate the races axially. So the angle of contact on the inner race is the same as that on the outer race. Angular contact bearings

Koyo Bearings - Koyo Direct Distributor | AST Bearings

AST Bearings is a certified Koyo bearings distributor, and has a fully-stocked supply directly from Koyo. Koyo offers general purpose ball bearings & roller bearings, bearings for extreme temperatures & environments, machine tools, industrial equipment and more. A full list of Koyo bearing applications can be seen here: