... (Chrome steel)--China,(AISI)52100---American ,(Din) 100Cr6---Germany4)Shield/Closure:Plain(Open),Z,ZZ,RS,2RS,UG.5)Vibration ... Tube packing , Individual box packingDEEP GROOVE BALL BEARINGSpecificationsdeep groove ball bearing 6305 1)Size:60,62,63,64,68,69 Series ... a complement of precision balls. The standard Conrad-type bearing has a deep-groove construction capable of handlingradial and axial ...