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.
ams7445 assn std all material responses overall material document and classification, afbma std tolerance for balls, grade 50 standard tolerance designation, 0.1562 inches nominal rolling element diameter, steel comp 440a or steel comp 440b or steel comp 440c overall material, ball style designator