Description
ZF BW 161-1 4.05 Gearbox
The ZF BW 161-1 with a 4.05:1 (approx. 4.057:1) gear ratio is a heavy-duty marine reverse-reduction hydraulic transmission. It is typically rated for continuous commercial or pleasure craft duty around 349.2 kW at 1800 RPM, featuring multi-disc wet clutches and integrated cooler/filter setups.
- Brand/Model: ZF Marine BW 161-1
- Reduction Ratio: 4.05:1 (4.057:1)
- Input Power Rating: ~349.2 kW (468 hp) at 1800 RPM (varies by duty cycle)
- Flywheel Housing: SAE 1
- Approximate Dry Weight: 530 kg to 684 kg (depending on configuration and attachments)
- Dimensions: Approx. 60 x 80 x 110 cm
- Standard Features: Hydraulically actuated multi-disc clutch, integrated oil cooler, oil filter, and mechanical or electrical controls
The ZF Marine Padova BW 161-1 is a high-torque, robust reverse-reduction gearbox built specifically for medium-to-heavy commercial marine propulsion.
Clutch Assembly: Employs an internal, multi-disc clutch package actuated entirely via hydraulic line pressure. This design allows for smooth shifting under load while maximizing torque capacity without mechanical slippage.
Full Reversing Capability: Identical performance capacity in both forward and reverse rotations. This structural balance allows identical gearboxes to be deployed across twin-engine builds using standard automotive-rotation engines.
