● Indicated performances are suitable for diesel engines, measured values at the flywheel. Other ( higher ) values are valid for gasoline engines. Information on request.
● Pleasure boats: Operating with full performance, restricted by 5 % of the entire max. 400 hours per annum. Normaly not more than 80 % of full performance.
● Semiprofessional use: Operating with full performance, restricted by 5 % of the entire max. 400 hours per annum. Use during longer time on not more than 75 % of maximum rotation speed.
● Continuous duty: Operating with full performance, restricted by 5 % of the entire max. 2.500 hours per annum. Use during longer time on not more than 80 % of the maximum rotation speed.
● It is important to synchronize the engine, the gearbox-reduction and the propeller with each other so that the engine has no difficulties to reach the indicated maximum rotation speed.
PRM Hydraulic Boat Reversing Gear Mechanisms have following qualities:
● All PRM gearboxes are equipped with a thrust bearing-unit on the outgoing shaft.
● All PRM gearboxes have a built-in help if a hydraulic trouble occurs.
● All PRM gearboxes may continuously turn onto full performance forwards or backwards.
● Reduction by going forwards is identical with reduction by going backwards.
● No difference by left or right propeller rotation.
● Because of the hydraulic kind of the gear, the operating is very slight.
● You need only one oil type on board because all PRM gears need only ordinary engine oil.
● From PRM 500 to the biggest model, all gearboxes can be purchased with a Power Take Off, so that you can take 29,5 HP per 1000 rpm from the engine.
● due to the short mounting length and the various models, you will always get the possibility to use the available engine room optimally.
● At switched-off engine the prop shaft may rotate without any limitation, it is a reason why PRM gearboxes are also very popular by sailboat owners.
