1) Qhov tseeb ntawm cov ntawv xov xwm tseem ceeb thiab cov ntawv xov xwm txuas txuas, uas yog, txoj kab uas hla dimension kam rau ua theem feem ntau yog IT6 ~ IT7; qhov dav txwv qhov sib txawv ntawm cov ntawv xov xwm tseem ceeb yog + 0.05 ~ -0.15mm; qhov kev sib txawv ntawm txoj kab uas hla yog ± 0.05mm; Qhov kev sib txawv ntawm axial dimension yog ± 0.15 ~ ± 0.50mm.

2) Qib kam rau ntawm cov ntawv sau ntev yog IT9 ~ IT10. Cov duab kam rau ua ntawm phau ntawv journal, xws li roundness thiab cylindricity, yog tswj nyob rau hauv ib nrab ntawm qhov ntev kam rau ua.

3) Qhov tseeb ntawm txoj haujlwm, suav nrog qhov sib luag ntawm cov ntawv xov xwm tseem ceeb thiab cov ntawv xov xwm txuas txuas: feem ntau nyob rau hauv 100mm thiab tsis ntau tshaj 0.02mm; lub coaxiality ntawm cov ntaub ntawv tseem ceeb ntawm lub crankshaft: 0.025mm rau me me high-speed engines, thiab rau loj thiab qis-ceev cav 0.03 ~ 0.08mm; txoj hauj lwm ntawm txhua qhov txuas txuas txuas tsis yog ntau tshaj ± 30 ′.

4) Qhov roughness ntawm qhov txuas txuas txuas thiab phau ntawv xov xwm tseem ceeb ntawm lub crankshaft yog Ra0.2 ~ 0.4μm; Qhov kev ntxhib los mos ntawm cov ntawv xov xwm txuas txuas, phau ntawv xov xwm tseem ceeb, thiab crank txuas fillet ntawm crankshaft yog Ra0.4μm.
Ntxiv rau cov kev cai saum toj no, muaj cov kev cai thiab cov kev cai rau kev kho cua sov, dynamic balancing, deg ntxiv dag zog rau lub qhov, huv si ntawm cov roj hla qhov, crankshaft tawg, thiab crankshaft rotation kev taw qhia.