120B ADVANCE gearbox ratio range is 2.03-3.73, transmission capacity is 0.044-0.088 kW/rpm. Input speed is 750-1800rpm, max. power 158.4kW at 1800rpm.

Standard Configuration
- Hydraulic control system
- Oil cooler
- Oil filter
- Oil pressure gauge
- Output coupling
- Mounting bracket
- CCS certificate
120B Ratio | Transmission Capacity (kW/rpm) |
2.03 2.81 | 0.088 |
3.73 | 0.044 |
Note:
- ADVANCE 120B Gearbox input speed range is 750-1800rpm.
- Transmission capacity indicates the proportion of the engine continuous power to the rated speed (kW/rpm). When selecting model, the actual transmission capacity should be smaller than the data listed.
Technical Data of ADVANCE 120B Marine Gearbox
- Flywheel housing (SAE 1)
- Flywheel (SAE 14)
- Center distance 190mm
- Rated propeller thrust 25KN
- Mechanical efficiency ≥ 0.96
- Rotation direction of output shaft, contrary to that of input shaft at ahead position
- ADVANCE gearbox 120B oil grade, SD/CC30 or SAE30, SD/CC40 or SAE40 (for summer in the torrid zone)
- Permissible angle of inclination, 10° longitudinally, 15° transversely
– Mechanical control / Electric control
– Shaft coupling (companion coupling) with bolts and nuts
– Power take-off (PTO)
– Dimension 605mm*744mm*770mm
– Net weight 400kg
- 120B Gearbox Datasheet
- ADVANCE Gearbox Catalogue
- 120B Service Manual
- 120B PDF Drawing
* Specifications subject to change without prior notice in the interest of continual product improvement. Technical data should be based on technical agreement for each order. Please contact our sales representative for engineering specifications, Survey Society Approvals and Classifications.