Kulondola kwa kubereka kumakhala ndi kulondola komanso kuzungulira kulondola kwatsatanetsatane ndi ntchito yomwe imakwera pamiyendo, imaphatikizapo m'mimba mwake, m'mimba mwake, m'lifupi, kulekerera kukula kwa chamfer kapena mtengo wololedwa. kupatuka, pafupifupi m'mimba mwake mphete m'lifupi kupatuka mu umodzi radial plane.rotation kulondola ndi pozungulira Pendulum, kuphatikizapo mphete mkati ndi kunja mphete radial kugwedezeka ndi axial runout, Mbali ya mphete mkati ndi m'mimba mwake kunja perpendicularity kulolerana range. 0 ku 6, 5, kalasi 4 ndi kalasi 2, nayenso, m'munsimu ndi tebulo poyerekeza pakati pa preeision kalasi ya china GB 307 ndi zina zolondola standard.Giant kubala mwatsatanetsatane kalasi ndi kuchokera giredi 6, 5, 4 ndi 2 misinkhu anayi makalasi. 

Mphete yakunja 11, mphete yamkati 12, ndi mpira 13 womwe uli ndi zigawo zonyamula ndi 0,95 misa% kapena kupitilira apo ndi 1.10 misa% kapena mpweya wocheperako, 0.05 misa% kapena kupitilira apo ndi zosakwana 0,3 misa% silicon, 0,10 misa% kapena kupitilira apo. ndi 0.50 mass% 11 A ya kunja kwa mipikisano yamphete ndi 12 A ya mkati mwa mphete yothamanga yomwe ili pamwamba yomwe imakhala ndi manganese otsatirawa, 1.30 mass% kapena kuposerapo, ndi 2.00 mass% kapena zochepa, ndipo imakhala ndi chitsulo chomwe imakhala ndi chitsulo chotsalira ndi chonyansa, ndi kukhudzana ndi zigawo zina. Ndipo pafupifupi nayitrogeni ndende pamwamba wosanjikiza zigawo 11B, 12B, ndi 13B amene zigawo mkati kuya kwa 20 μm kugudubuzika pamwamba 13A ndi 0.2% ndi kulemera kapena kupitirira ndi 0,7% ndi kulemera kapena kucheperapo, ndi pamwamba. zigawo zosanjikiza 11B, 12B, 13B, 5 kapena kuposa carbides ndi m'mimba mwake 0,5 micrometer kapena kuchepera alipo pa 100 micrometer.