The OT56 gearbox is distinguished by its compact, “square” design with reduced dimensions, available in two- and three-stage reduction versions. The two-stage reduction consists of a spiral bevel gear pair with Gleason toothing, combined with a final cylindrical gear pair featuring an involute profile, carefully optimized for improved load resistance. The three-stage reduction version adds a preliminary stage (pre-stage), composed of two helical-tooth cylindrical gears.
