Fig. 2.11. Balancing shaft: 1 – bent shaft; 2 – drive; 3 – balancing shaft 2; 4 – balancing shaft 1; 5 – case of a balancing shaft

The balancing shaft is used for reduction of fluctuations. The drive of a balancing shaft is carried out by a gear wheel which is established on a counterbalance of a bent shaft. Besides, the gear wheel from polymeric material allows to reduce noise level and to facilitate a design.