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 440b or steel comp 440c overall material, 0.0781 inches nominal rolling element diameter, afbma std tolerance for balls, grade 10 standard tolerance designation, surface hardness rc55.0-62.0 for type 440b and rc58.0-65.0 for type 440c special features, 66 fed std all material responses overall material document and classification