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NEWAGE PRM1750 MARINE TRANSMISSIONS

 

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Newage PRM Marine Transmissions - PRM1750

PRM1750

PRM1750 series marine transmissions are the ideal choice for pleasure and commercial craft applications with engines rated at up to 620 hp (463 kW).

 

Nominal Power Ratings - PRM1750 Deep Case Marine Gearbox

    Pleasure Light Commercial Heavy Commercial Continuous
MODEL Gear Ratios BHP kW BHP kW BHP kW BHP kW
1750D31SAE1
1750D31SAE2
3.12:1 24.58 18.33 22.85 17.04 21.13 15.76 18.27 13.63
1750D39SAE1
1750D39SAE2
3.88:1 24.58 18.33 22.85 17.04 21.13 15.76 18.27 13.63
1750D45SAE1
1750D45SAE2
4.50:1 24.58 18.33 22.85 17.04 21.13 15.76 18.27 13.63
1750D49SAE1
1750D49SAE2
4.90:1 22.48 16.76 20.89 15.58 19.32 14.41 16.72 12.47

Ratings are based upon engines with a maximum operating speed of 2500 rev/min

 
   Note: These powers are expressed in BHP and kW per 100 rev/min engine speeds, and are measured at the engine flywheel. Ratings have been established to ensure the long, trouble-free life of the gearbox and should not therefore, be exceeded.
   Note: D denotes Deep Case: manufactured only with integral SAE1 or SAE2 adaptor housings.
 
Nominal Power Ratings - PRM1750 Shallow Case Marine Gearbox 
    Pleasure Light Commercial Heavy Commercial Continuous
MODEL Gear Ratios BHP kW BHP kW BHP kW BHP kW
1750S12SAE3 1.22:1 24.58 18.33 22.85 17.04 21.13 15.76 18.27 13.63
1750S15SAE3 1.56:1 24.58 18.33 22.85 17.04 21.13 15.76 18.27 13.63
1750S19SAE3 1.94:1 24.58 18.33 22.85 17.04 21.13 15.76 18.27 13.63
1750S22SAE3 2.25:1 24.58 18.33 22.85 17.04 21.13 15.76 18.27 13.63
1750S24SAE3 2.45:1 24.58 18.33 22.85 17.04 21.13 15.76 18.27 13.63
1750S30SAE3 3.00:1 24.58 18.33 22.85 17.04 21.13 15.76 18.27 13.63
Ratings are based upon engines with a maximum operating speed of 2500 rev/min
 

   Note: These powers are expressed in BHP and kW per 100 rev/min engine speeds, and are measured at the engine flywheel. Ratings have been established to ensure the long, trouble-free life of the gearbox and should not therefore, be exceeded.

   Note: S denotes Shallow Case: manufactured only with integral SAE3 adaptor housings.

PRM1750 - Full Hydraulic Operation - Drop Center Output Shaft Two Stage Reduction Gearing

  • PRM1750 series marine transmissions are the ideal choice for pleasure and commercial craft applications with engines rated at up to 620 hp (463 kW).
  • They are available in both shallow and deep case form - corresponding to reduction ratios ranging from 1.22:1 to 3.0:1 and 3.12:1 to 4.9:1 respectively - and are supplied with integral SAE housings as standard.
  • All PRM1750 series transmissions feature a twin countershaft design compatible with left or right hand propeller rotations - making them equally suitable for both single or twin engine installations. In addition, the PRM1750's two-stage reduction gearing enables maximum input torque of 1750 Nm to be transmitted continuously in either direction at engine speeds of up to 2500 rev/min.

PRM1750 - Service Classification Definitions - Pleasure

  • Limited to planing hull pleasure craft with a maximum of 500 hours operating time per year, of which not more than 5% should be at full engine throttle, with the balance of usage at 90% or less of full throttle. The use of PRM marine gearboxes according to this classification in any commercial boat, or in sport-fishing charter boats or long-range pleasure cruisers, is not approved.

PRM1750 - Service Classification Definitions - Light Commercial

  • Planing or semi-displacement craft used in pleasure or commercial application may qualify for light commercial rating if annual usage is less than 1500 hours and full throttle operation is limited, with most operating time at partial throttle.

PRM1750 - Service Classification Definitions - Heavy Commercial

  • All displacement and semi-displacement craft used for commercial applications should be classified as heavy commercial duty. In this type of vessel (such as trawlers, purse seiners, lobster and crab boats, tugs, ferries, offshore supply boats etc.) the gearbox is expected to work at full governed engine speed. The power setting of the engine must be known and must be within the permitted heavy commercial rating of the gearbox.

Important to Note:

  • It is essential for the engine, transmission model, reduction ratio and propeller size to be correctly matched so that the engine can attain its rated speed appropriate to the relevant service classification without labouring.
  • It is also necessary to ensure the torsional compatibility of the complete propulsion system from engine through to propeller, since disregarding this may result in gear noise, particularly at low speed operation, and may even result in damage to the engine as well as the transmission components.
  • Trans Atlantic Diesels will provide all possible information and assistance to help find solutions to potential torsional problems, but it is the ultimate responsibility of the person assembling the drive and driven equipment to ensure that they are torsionally compatible.
 

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   Email us regarding the Newage PRM1750 at tadinc@earthlink.net

or... Please call us at 1-800-927-9295 for more information.

 
 

This Page Last Updated June 23, 2014

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