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.
ball style designator, afbma std tolerance for balls, grade 500 standard tolerance designation, 0.5625 inches nominal rolling element diameter, copper alloy overall material, metallic hardness rating brinell standard min 160.0 in. and max 170.0 in. special features