Ubusobanuro bwo kwifata burimo neza kandi buzunguruka ibipimo byerekana neza ni umushinga uzamuka ku mbaho, urimo imbere imbere ya diameter, diameter yo hanze, ubugari, kwihanganira ubunini bwa chamfer cyangwa agaciro kemewe. gutandukana, impuzandengo ya diametre impeta y'ubugari mu ndege imwe ya radiyo.kwerekana neza ko kuzenguruka Pendulum, harimo impeta y'imbere hamwe n'impeta yo hanze ya radiyo swing hamwe na axial runout, Uruhande rw'impeta y'imbere n'ubuso bwa diameter yo hanze igipimo cyo kwihanganira perpendicularity.Kwerekana amanota asobanutse kuva mucyiciro rusange 0 kugeza 6, 5, icyiciro cya 4 nicyiciro cya 2, nacyo, hepfo ni igereranya ryimbonerahamwe hagati yicyiciro cya preeision ya china GB 307 nibindi bipimo byuzuye. Inzego 5, 4 na 2 z'ibyiciro bine. 

Impeta yo hanze 11, impeta y'imbere 12, n'umupira wa 13 urimo ibice ni 0,95 misa% cyangwa irenga na 1,10 mass% cyangwa munsi ya karubone, 0,05%% cyangwa irenga kandi munsi ya 0.3 mass% silicon, 0,10 mass% cyangwa irenga na 0,50 misa% 11 A yumuhanda wimpeta yinyuma na 12 A yumuhanda wimbere wimbere aribwo buso bugizwe nicyuma kigizwe na manganese ikurikira, misa 1.30% cyangwa irenga, na 2.00 mass% cyangwa munsi yayo, kandi igizwe nicyuma aricyo igizwe nicyuma gisigaye n'umwanda, hamwe no guhuza nibindi bice. Impuzandengo ya azote igereranijwe mukarere ka 11B, 12B, na 13B arizo turere muburebure bwa 20 mm kuva hejuru yumupira uzunguruka 13A ni 0.2% kubwinshi cyangwa byinshi na 0.7% kubwinshi cyangwa munsi, no hejuru uturere twibice 11B, 12B, 13B, 5 cyangwa byinshi karbide ifite diameter ya micrometero 0.5 cyangwa munsi yayo ibaho kuri micrometero 100.