1. Equipment
  2. Propulsion, Engine controls
  3. Boat reduction gearbox
  4. Baysan Marine - Baysan Makina Disli San.Tic.Ltd.Şt

Boat reduction gearbox H500A
engineoil pumphydraulic system

boat reduction gearbox
boat reduction gearbox
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Application domain
for boats
engine, oil pump, hydraulic system
Other characteristics
with hydraulic clutch

224 kW, 370 kW
(304.6 hp, 503.1 hp)

Rotational speed

4,000 rpm
(25,133 rad.min-1)


A hydraulic marine gearbox with 80 down angle shaft, twin countershaft designed, separated oil-operated multi-disc clutches for ahead and astern drive allowing full rated power to be transmitted continuously in either direction. Due to forward and astern gear ratios are same convenient to twin engine installations. Consists of two separate halves to facilitate servicing.The oil pump and hydraulic control valves being externally designed for easy accessibility. Soft gear lever provides controlling facility with spiral remote control. Suitable for high performance applications, pleasure and heavy duty conditions in fishing and tour boats. Fully works tested, reliable and simple to install. The hydraulic system is nevertheless provided with a mechanical lock-up device for added security, so that in the unlikely event of hydraulic failure the boat can be brought safely back to port. Access to this device is via a detachable cover located on top of the main gearcase. PTO(Power take off) presents as an optional extra convenient to engine rpm. In case of proper usage according to safety usage conditions, proper engine, shaft, propeller selection and errorless assembling occured has 2 years warranty. Design and manufacturing activities of all Baysan's products comply with ISO 9001:2008. Reduction ratio Standard : forward 2,40:1, reverse 2,30:1 Optionel : forward 3,:1 reverse 3,60:1 Oil type SAE 20W50/75W90 Oil capacity 6 lt. +Plus reqired amount to fill the cooling unit. Weight without flange 135 kg. Standard rotation In anti-clock wise standard engines, when the control lever is in forward, output shaft rotates clockwise rotation.
*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.