MG45.49

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Ship reverse reduction gear with fluted pattern MG 45.49.
Designed for transmission of torque from the engine flywheel to the propeller, as well as to change the direction of rotation of the propeller.
Gear ratio Model MG 45.49 RRP ranges from 2 to 6.
Complete with couplings Manometrical, slide control unit. The exact scope of delivery to specify when ordering.

SPECIFICATIONS

1. Gear RRP consists of a 7-helical wheels on 4 shafts;
2. Nominal input speed from 400 to 1400 rev / min;
3. Wheelbase input and output shafts - shafts are coaxial;
4. The clutch input and output shafts - friction multi-plate clutch with hydraulic control;
5. Type of clutch input shaft RRP with the engine crankshaft - highly elastic coupling;
6. The gear ratios and corresponding transmit power:

Rotation frequency Rated gear ratio Factual gear ratio Transmit power
kW (h.p.)/min-1
400 – 700 2:1 1,9377:1 4,175 (5,680)
400 – 900  2,5:1 2,5510:1 3,175 (4,320)
400 – 1100 3:1 2,9844:1 2,720 (3,700)
400 – 1250 3,5:1 3,4798:1 2,330 (3,170)
400 – 1400 4:1 4,0513:1 2,051 (2,790)
4,5:1 4,4838:1 1,808 (2,640)
5:1 4,9657:1 1,630 (2,220)
5,5:1 5,5061:1 1,471 (2,000)
6:1 5,9887:1 1,352 (1,840)
6,5:1 6,4517:1 1,250 (1,700)
7:1 7,0536:1 1,117 (1,520)

7. The direction of rotation of the drive shaft (viewed from the output shaft):
RRP MG 45.49 - counterclockwise;
RRP MG 45.49Y - clockwise; 
8. The direction of rotation of the output shaft when moving forward - the same direction to the rotation of the input shaft; 
The direction of rotation of the output shaft when moving forward - the same direction to the rotation of the input shaft; 
The direction of rotation of the output shaft when moving forward - the same direction to the rotation of the input shaft; 
9. The nominal propeller thrust - 270 kN;
10. Mechanical efficiency - ≥ 97%;
11. Time changes the direction of rotation - ≤ 10 seconds;
12. Oil grade - SD / SS30 or SAE30, M10V2, M10G2, M14G2, M14G2TSS, M14D2;
13. The amount of oil -180 liters;
14. The maximum oil temperature - ≤ 80 ° C; 
15. Flow of cooling fluid - 15 t / h;
16. Permissible long trim - 10 °, roll - 15 °;
17. Hours before overhaul - ≥ 15,000 hours;
18. Dimensions (L x W x H) - 1640 x 1230 x 1240 mm; 
19. Net weight - 4850 kg.

 

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