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.
steel comp 302 overall material, astm a493 assn std single material response overall material document and classification, hardness - 362 brinell; yield strength 50,000 to 150,000 psi; annealed; grade 100; diameter 3/16 inch special features