FIELD: process engineering.
SUBSTANCE: invention relates to machine building and may be used for external grinding. Crankshaft rod bearings are finished before grinding main bearings. Strains generated are allowed for to be compensated in grinding main bearings. Rod bearings are ground by pendulum process with programmable numerical control. Crankshaft is arranged in rotational axis defined by two rough thrust sections of its main bearings extending along crankshaft. Deviation of said actual rotational axis from crankshaft geometrical longitudinal axis is allowed for in pendulum grinding by grinder processor. Finished rod bearings are precisely related to main bearings to be ground on placing them in crankshaft geometrical longitudinal axis.
EFFECT: higher precision.
15 cl, 7 dwg
