НС400

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Ship reverse reduction gear with fluted pattern NA 400.
Designed for transmission to transmit torque from the diesel engine to the propeller vessel. 
Gear ratios RRS 1,5 to 4,06. 
Complete with connective coupling Manometrical monitoring of operating parameters, slide control unit.
The exact scope of delivery to specify when ordering.

SPECIFICATIONS

1. Gear RRP consists of 5 helical wheels on 3 shafts;
2. The rated speed of the drive shaft 1000 to 1800 rev / min;
3. Wheelbase driving and driven shafts: 
RRP HC400 - 264 mm;
RRP НСD400А - 355 mm;
4. The clutch driving and driven shafts - friction multi-plate clutch with hydraulic control;
5. Type of coupling the drive shaft to the crankshaft of the engine - highly elastic or rubber-bolt coupling;
6. The gear ratios and corresponding transmit power (with elastic couplings): 

НС400 НСD400А
Rated gear ratio Factual gear ratio Transmit power
kW (h.p.)/min-1
Rated gear ratio Factual gear ratio Transmit power
kW (h.p.)/min-1
1.5:1
2:1
2.5:1
3:1
3.5:1
1.5 : 1
2.04 : 1
2.5 : 1
3.0 : 1
3.42 : 1
0.331 (0.450) 4:1
4.3:1
4.5:1
4.7:1
5:1
4.0 : 1
4.33 : 1
4.48 : 1
4.70 : 1
5.0 : 1
0.331 (0.450)
4:1   4.06 : 1   0.279 (0.380) 5.5 :1 5.47 : 1  0.293 (0.400)
 6:1   5,89:1 0.272 (0.370)

Note: When using a rubber-finger couplings transmit power by about 9% lower than indicated in the table.

7. The direction of rotation of the drive shaft (viewed from the output shaft):
RRP HC400 - counterclockwise;
RRP HС400Y- clockwise;
8. The direction of rotation of the driven shaft (if forward progress) - the opposite rotation of the drive shaft;
9. The maximum stress perceived bearing on the output shaft - 82000 H; 
10. Mechanical efficiency - ≥ 96%;
11. Time changes the direction of rotation - ≤ 10 seconds;
12. The oil pressure from 1.3 to 1.5 MPa;
13. Oil grade - SS30, SS40, CC50, M14G2, M14G2TSS; 
14. The volume of oil: RRS NS400 - 23L; RRP NSD400A - 28L;
15. The maximum oil temperature - ≤ 80 ° C;
16. Flow of cooling fluid - ≥ 4t / h;
17. Permissible long trim - 10 °, roll - 15 °;
18. Hours before overhaul - ≥ 10,000 hours;
19. Dimensions (L x W x H) - 641 x 890 x 890mm.

 

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