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.
metallic hardness rating rockwell c min 62.0 in. and max 64.0 in. special features, steel overall material, ball style designator, 0.4380 inches nominal rolling element diameter