American Roller Bearing 

Deep groove ball bearings

Deep groove ball bearings are suitable for moderate radial or thrust loads and combined radial/thrust loads. The metric DGB series follows ISO design practices for boundary dimensions, Bore, O.D., width and corner radii. Both metric and inch series bearings are supplied with a two-piece machined brass cage, ball centered in most sizes and land riding in the very large bearings. Unless otherwise specified by the end-user, these extra large ball bearings will automatically be supplied with a C3 clearance for metric bearings and B3 for inch series ball bearings. This is necessary to provide some mounted clearance since these bearings are typically mounted on a shaft with an interference fit.