IR4N Gearbox


Catalog excerpts

IR4N Gearbox - 1

Marine Gearboxes Continuous duty ratings 202-491 kW 275-668 hp 1500-1800 rpm Technical Characteristics Full capacity only in forward rotation (except IR4N 4.6) Same reduction ratio in the two ways of rotation (except otherwise stated) Hydraulic clutches multi-disc type Gears with tempered, hardened and rectified teeth Line shaft thrust bearings built-in gearbox secondary shaft Filtration of lubricating oil by a full flow, screw-on cartridge type filter Oil capacity: 18 litres of SAE 30 or SAE 40-type lube oil * the number in brackets corresponds to the reverse rotation reduction ratio. Standard specifications Standard Baudouin coupling housing, bare input shaft, without coupling flange Mechanically-driven oil pump Oil cooler for sea water cooling, fitted on gearbox Clutches control by 24 Vdc electro-distributors with emergency manual control on gearbox Emergency device by clutches mechanical locking Clutches oil pressure switch Coupling flange on output secondary shaft Rigid mounting feet Manual oil draining pump supplied in accessories box

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IR4N Gearbox - 2

Power Take Off Not clutchable power take off Pulley 3 grooves profile A, Ø 140 for two and Ø 120 for one, fitted on lateral shaft A or B Clock wise rotation - PTO rpm = Engine rpm (for IR4N) or 0.864 x engine rpm (for IR4NM and IR4NMD) - Maximum transmissible torque: 8 m.daN Conical bare shaft end, fitted in C - Clock wise rotation - PTO rpm = 1,266 x engine rpm Maximum transmissible torque: 14 m.daN (radial) or 60 m.daN (axial) Clutchable power take off For driving of one pump in line, fitted in C - Clock wise rotation PTO rpm = 1,266 x engine rpm - Maximum transmissible torque: 100 m.daN...

Open the catalog to page 2

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