Radial bearings are those with rolling contact in which the direction of action of the load transmitted is radial to the axis of the shaft. This bearing reduces rotational friction and support loads. The ball offers substantially less rolling resistance and coefficient of friction than if two flat surfaces were rotating. Assortment includes variants measuring 3/8" thru 3/4" in inner diameter and either 1-1/8" or 1-3/8" in outer diameter. Full assortments of #58109 contain six (6) refills comprised of Hillman item numbers #58110 - #58115.