Daidaiton bearing ya ƙunshi daidaito da daidaiton juyawa daidaitacce aiki ne da ke hawa kan shafts, ya haɗa da diamita na ciki, diamita na waje, faɗi, haƙurin girman chamfer ko ƙimar da aka yarda. Daidaiton geometric ya haɗa da karkacewar diamita, matsakaicin karkacewar diamita na ciki, karkacewar diamita na waje, matsakaicin karkacewar faɗin zobe a cikin jirgin sama na radial guda ɗaya. Daidaiton juyawa shine juyawa Pendulum, gami da zoben ciki da zoben waje juyawar radial da runout na axial, Gefen zoben ciki da diamita na waje saman diamita mai daidaituwa. Daidaiton bearing daga aji na gaba ɗaya zuwa aji na 0, 5, aji na 4 da aji na 2, bi da bi, a ƙasa akwai kwatancen tebur tsakanin aji na preeision na china GB 307 da sauran daidaitattun daidaito. Babban ƙimar ɗaukar bearing ya fito ne daga matakai na aji na 6, 5, 4 da 2 na maki huɗu. 

Zoben waje 11, zoben ciki 12, da ƙwallon 13 waɗanda suke ɗauke da abubuwa sune kashi 0.95% ko fiye da haka da kashi 1.10% ko ƙasa da haka na carbon, kashi 0.05% ko fiye da haka kuma ƙasa da kashi 0.3% na silicon, kashi 0.10% ko fiye da haka da kashi 0.50% na zoben waje da kashi 12A na zoben ciki waɗanda sune saman da ya ƙunshi ƙarfe wanda ya ƙunshi manganese mai zuwa, kashi 1.30% ko fiye da haka, da kashi 2.00% ko ƙasa da haka, kuma ya ƙunshi ƙarfe wanda ya ƙunshi sauran ƙarfe da ƙazanta, da kuma hulɗa da wasu abubuwan haɗin. Kuma matsakaicin yawan sinadarin nitrogen a cikin yankunan saman 11B, 12B, da 13B waɗanda yankuna ne a cikin zurfin 20 μm daga saman birgima na ƙwallon 13A suna da kashi 0.2% ta nauyi ko fiye da haka kuma kashi 0.7% ta nauyi ko ƙasa da haka, kuma a cikin yankunan saman 11B, 12B, 13B, carbide 5 ko fiye waɗanda diamitansu ya kai micrometer 0.5 ko ƙasa da haka suna wanzuwa a cikin kowane micrometer 100.