FIELD: technological processes, metal working.
SUBSTANCE: invention is related to production and repair of internal combustion engines and may be used to finish crankshaft journals in vehicles. Lap comprises jacket, handles and adjusting screws. Jacket is made in the form of body parts that consists of two halves hingedly joined to each other. Jacket halves are tightened by three adjusting screws installed in rows. Springs put on adjusting screws are installed in gap of jacket halves joint planes.
EFFECT: higher accuracy of crankshaft finishing and elimination of scrap occurring after its polishing.
2 dwg
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