Pic. 2.185. Crankshaft: 1 - the main neck of the crankshaft No. 1; 2 - knurling; 3 - counterweight; 4 - the main neck of the crankshaft No. 4
Crankshaft (pic. 2.185) forged steel, has four main journals and nine counterweights. All crankshaft journal fillets are knurled to provide adequate strength. The bearings of the first and fourth main journals of the crankshaft are wider to reduce noise and vibrations, the bearings of the second and third main journals of the crankshaft are made narrower.