USA Crankshaft main journal .
B24B5/425 — Singlepurpose machines or devices for grinding crankshafts or crankpins in situ. Description. Jan. 19, 1965 s. GOLTEN 3,165,866 . CRANKSHAFT MAIN JOURNAL REGRINDING PROCESS Filed Nov. 16. 1962 United states Patent O 116, A o Sen Pie. (u. si 2S9) This invention relates to crankshaft main bearing regrinding processes useful especially in large marine engines. .