Statistical investigation of the fatigue life of deep-groove ball bearings

Fatigue is a n j m por ta nt facto r in determ.inin g t he se r vice life of ball b ea rin g~. Bcarin g mallllfacturers a rc t herefore con sta ntly engaged in fat ig ue-testin g ope rat io nR in o rde r to obtain info rmat io n r elat in g fat igue life to load a nd other fact c rs. Severa l of t he la rge r man ufact urers have recently pooled t heir test da t a in a cooperative effo rt to se t up un ifo rm a nd sta ndardi zed ba ll-bearin g a pplication formul a s, w hi ch wo ul d benefi t t he ma n.v users of a n t i-Fri ctio n bearin gs. These data we re co mpiled by t he Ameri can Standa rds Associat ioll , whi ch sub seq uent ly r eq u ested t hat t he Natio nal Bureau of Stan da rd s perfo rm t he necessa ry a na ly ses . This p ape r s umm a ri zes t he prin cipa l r es ul ts o f t he analyses un de rta ken by t he Bureau , a nd d es cribes t he stat ist ical p roced u res used in t he i nvestigat io n .