A homogenous spherical body, a series of which provides the rolling elements in a bearing, ball (as modified). The item is designed primarily to alleviate friction. It may have other usages such as the checking component in a ball-type check valve. Excludes:ball,check; ball,valve,ported.
afbma std tolerance for balls, grade 25 standard tolerance designation, steel comp 5140 overall material, 0.5000 inches nominal rolling element diameter, ball style designator