350 ton tilting converter drive unit, four motor driven , 2.500.000 Nm (peak torque).max. transmitted torque.
NiCrMo steel ring bull gear, welded under controlled pre-heating and cooling procedure on electrowelded carbon steel frame; spur teeth 3.900 mm, module 20, induction hardened, 50 – 55 HBn surface hardness .

170 ton tilting converter drive unit, twin motor driven, 1,500,000 Nm max. transmitted torque (peak torque).
The entire drive, fitted to the tilting converter driveshaft, is equipped with a torque-shaft based system that contrasts the counter-rotation induced by the applied torque moment.

Four motor tilting converter drive unit with during assembly and intermediate geometrical inspection.
Contact patterns between primary gearbox pinion teeth and bull gear teeth is checked to be within 80% of the required specification, as well as the central position along involute and helix.



Friday, May 21, 2010
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