Lewmar 2019

www.lewmar.com ▪ ▪ Bevelheads can be supplied with 2, 3 or 4 steering shafts, permitting integration for secondary steering stations, tandem wheel arrangements and direct coupled autopilot drives. ▪ ▪ A choice of mounting plates and brackets for bevel and gearboxes. ▪ ▪ Availability of step ratio gears to adjust overall steering ratio. Mamba™ steering is a rotating torque tube and bevelhead system, transmitting the helmsman’s input to a high efficiency reduction gearbox, mounted adjacent to the rudder stock. A tiller lever is fitted to the rudder stock and is driven by a similar lever integral to the gearbox, via a fully articulating jointed draglink. Two or three station systems, catamarans and tandem wheel steering systems are regularly supplied. The integration of autopilot drives and remote controlled disengagement units is simply achieved. The Mamba™ range of steering systems is offered in two sizes, BH10 and BH130, which are coupled with 12 models of reduction gearbox, providing equipment to suit all craft from 10.6m/35ft to 61m/200ft. In most cases, either high efficiency spur, or reduction, gearboxes are chosen, offering between 1.0 and 2.6 turns lock to lock. Each option also provides a high reverse efficiency, transmitting rudder feel to the helmsman. The lever geometry for Lewmar transmission systems is based on the principle of Wide Angle Geometry. To simplify installations, Mamba™ equipment offers the following examples of versatility: Principle of Operation