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Cast Iron Casing Reducers

Cast iron casing reducers Bonvario Eurodrives are manufactured with high quality material in order to guarantee the maximum reliability and strength for long life. Worm shaft are made of steel which are case hardened to 58-60 HRC and profile ground. The thread grinding in the gear ratios that the module value permits is carried out with ZI- profile. This improves the contact between the toothed surface and therefore performance. This also reduces operating noise of the gearbox. The worm wheel has a G20 cast iron hub onto which a casting in A131 bronze RIM is fitted. To guarantee long life, ball bearings of reputed make are used. Bonvario BC series cast iron casing speed reducers are available in range of 12 sizes from size 40 to 250 (112 to 700) and meet the requirement of all drives up to 50 kW. A range of standard ratios gives a wide choice of output speeds from 5:1 to 60:1. These gearboxes are also available in double reduction for required ratios of 1:80 to 1:3600. These reducers are also available in ada